opal elk Jan 10, 2018, 2:10 AM

#

wanted to make sure there wasn't a simpler way

slender iron Jan 10, 2018, 2:10 AM

#

there is a limited amount of stuff we can do at the branch level

opal elk Jan 10, 2018, 2:10 AM

#

yells "fork it" and then looks around nervously for dynobot

slender iron Jan 10, 2018, 2:10 AM

#

😃

opal elk Jan 10, 2018, 2:12 AM

#

any objections to me making 9.806 a constant?

slender iron Jan 10, 2018, 2:12 AM

#

nope

manic glacierBOT Jan 10, 2018, 2:17 AM

#

jerryneedell

[adafruit/circuitpython] New comment on pull request #518: Make chosen features consistent across all boards and ports atmel\-samd, esp8266, and nrf\.

Do you also want to enable #define MICROPY_ENABLE_SOURCE_LINE (0) in the nerf build?

#

dhalbert

[adafruit/circuitpython] New comment on pull request #518: Make chosen features consistent across all boards and ports atmel\-samd, esp8266, and nrf\.

@jerryneedell Good idea. I didn't do any kind of comprehensive look at what's different in nrf. If you know of anything else let me know.

opal elk Jan 10, 2018, 2:21 AM

#

tony uses two spaces after a period. I will begrudgingly match in this comment I'm appending to.

manic glacierBOT Jan 10, 2018, 2:23 AM

#

jerryneedell

[adafruit/circuitpython] New comment on pull request #518: Make chosen features consistent across all boards and ports atmel\-samd, esp8266, and nrf\.

That is the one I usually add along with uncommenting out the BLE_MODULE and UBLUEPY_MODULE but I think Kevin wants this tested more before they are mainstreamed. I have been playing with them a little but happy to deal with them myself for now.

opal elk Jan 10, 2018, 2:44 AM

#

getting a pylint error: E:286, 0: invalid syntax (syntax-error)

#

for existing code, def __init__(self, i2c, *, address=0x18, int1=None, int2=None):

#

it doesn't seem to like the bare asterisk, but that's valid...

#

I may have arguably made it slightly harder to understand, though I would argue more pythonic https://github.com/adafruit/Adafruit_CircuitPython_LIS3DH/pull/23

GitHub

added gravitational constant, hopefully made it a bit easier to see w… by Sigafoos · Pull Request #23 · adafruit/Adafruit_CircuitPython_LIS3DH

…hat was being calculated

slender iron Jan 10, 2018, 2:51 AM

#

are you using local pylint?

#

the asterisk is a python3 thing

opal elk Jan 10, 2018, 2:52 AM

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pylint --rcfile=.pylintrc adafruit_lis3dh.py in a python3 venv

slender iron Jan 10, 2018, 2:52 AM

#

hrm

opal elk Jan 10, 2018, 2:52 AM

#

build failed. sigh.

slender iron Jan 10, 2018, 2:52 AM

#

looks

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ah mpy-cross failed

#

you can drop the const()

#

thats a micropythonism

opal elk Jan 10, 2018, 2:56 AM

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yeah, I was gonna

#

I was going to suggest we lint for that but if it's mpy and not CPy that's fine

#

(is CPy accepted nomenclature?)

raven canopy Jan 10, 2018, 2:57 AM

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I've used it plenty, and noone has been like "whaa?"

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along with MPy (seen uPy too) [for micropython]

slender iron Jan 10, 2018, 2:58 AM

#

const is good for ints. mpy-cross is smart with it

#

cpy is a bit weird because desktop python is also called CPython

opal elk Jan 10, 2018, 2:58 AM

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ah yeah

slender iron Jan 10, 2018, 2:59 AM

#

I probably wouldn't do the list comprehension

#

in the library

#

because it makes a tuple, outputs a list and then makes another tuple

opal elk Jan 10, 2018, 3:02 AM

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I was getting the line-too-long error so I did that but yeah, I agree

#

I'm gonna need to squash these commits.

tulip sleet Jan 10, 2018, 3:04 AM

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you can use ()'s instead of []

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for comprehensions (you get a generator)

opal elk Jan 10, 2018, 3:07 AM

#

good to know

#

I left it out of the library, still

#

and also did a force push because three commits for this makes me look bad

slender iron Jan 10, 2018, 3:08 AM

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np

opal elk Jan 10, 2018, 3:09 AM

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it wounds my pride.

timber mango Jan 10, 2018, 3:09 AM

#

I get this error when I try to copy over main.py on my CPX. When I try to delete the existing main.py and refresh, it reappears

📎 CPYERROR.PNG

opal elk Jan 10, 2018, 3:09 AM

#

I'm pretty new to python 3, though. been 2.7 for a few years but I'm forcing myself to get with the times.

#

@timber mango have you done anything with making the onboard storage mounted?

timber mango Jan 10, 2018, 3:10 AM

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Not that I know of

tulip sleet Jan 10, 2018, 3:10 AM

#

@timber mango check this out: https://learn.adafruit.com/welcome-to-circuitpython/troubleshooting#circuitpy-drive-issues

timber mango Jan 10, 2018, 3:15 AM

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That worked, thank you!

#

I'm keeping that file handy, this probably won't be the last time this happens

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@opal elk two spaces after a period was standard at one time. Later it was referred to as French spacing. I've always used it.
@timber mango :
https://en.wikipedia.org/wiki/History_of_sentence_spacing#French_and_English_spacing

opal elk Jan 10, 2018, 3:17 AM

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I generally joke that it's for grandpas but I don't want to offend anyone

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I mean, I don't use the oxford comma. so we all make questionable decisions.

timber mango Jan 10, 2018, 3:17 AM

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I have a grand nephew. ;) My niece's son.

opal elk Jan 10, 2018, 3:18 AM

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it's one of those things where I don't actually care but it's fun to be cantankerous

timber mango Jan 10, 2018, 3:18 AM

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I think consistency is a good idea but only within one person. ;)

stuck elbow Jan 10, 2018, 7:44 AM

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french spacing is a space before ? and !

jovial wind Jan 10, 2018, 10:53 AM

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@timber mango is it bad to point out that you didn't use two spaces after those sentences above?

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but seriously, it's probably why we have style sheets for things..

timber mango Jan 10, 2018, 12:54 PM

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Let me know when there's prize money involved. If people are using one or two spaces (or more) after a sentence, variably from one person to the next .. I am not noticing it.
What I am noticing is an impoverished use of language, due solely to brevity. Grunts and emoticons.

stuck elbow Jan 10, 2018, 1:18 PM

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the two spaces after a period is important for some tools to be able to distinguish the sentence-ending period from other kinds of periods, and format it accordingly

#

for instance, LaTeX

timber mango Jan 10, 2018, 1:24 PM

#

Right you are. That's my point: obsessing over someone else's use of spacing is one thing; breaking machine-based tools (diff comes to mind, here) is another thing.

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❤ LaTeX

#

On the whole, defending a position is also an impoverished strategy, especially when there is no prize money involved. ;)
I'm trying to learn something new, something different, about this, and it involves the avoidance of the rapid selection of a 'position' and then defending it, in favor of a differing process from that one.

#

Other than that, I need an assistant to follow along behind me to close a lot of open parentheses, and this hasn't changed in decades of writing.

manic glacierBOT Jan 10, 2018, 1:32 PM

#

dhalbert

[adafruit/circuitpython] Issue opened: #519 More accurate time reporting

Several users have asked for time reporting that's more precise than the millisecond ticks provided by time.monotonic(). Use cases and proposals welcome here.

manic glacierBOT Jan 10, 2018, 5:43 PM

#

dhalbert

[adafruit/circuitpython] New comment on issue #111: Delayed writes and auto\-reset problems when writing from Windows

I'm going to close this issue for now, since we've documented the problem thoroughly in the Learn Guides and described and implemented mitigations such as editor plugins that force immediate writes. If/when there's some movement on the Windows side or we figure out an alternate filesystem that works on all the platforms, I'll reopen or create a new issue.

#

dhalbert

[adafruit/circuitpython] Issue closed: #111 Delayed writes and auto\-reset problems when writing from Windows

upbeat plover Jan 10, 2018, 5:55 PM

#

on CPX how do i use pin A10 ( "A10 - IR Proximity Sensor")?

#

info on it from https://cdn-learn.adafruit.com/downloads/pdf/adafruit-circuit-playground-express.pdf

stuck elbow Jan 10, 2018, 5:56 PM

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@upbeat plover iirc it's board.IRRX

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or something like that

upbeat plover Jan 10, 2018, 5:57 PM

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board.IR_PROXIMITY

#

thank you

manic glacierBOT Jan 10, 2018, 6:13 PM

#

CameronDevine

[adafruit/circuitpython] New comment on issue #519: More accurate time reporting

I was attempting to work with a 433Mhz radio transmitter which required writing to a pin at 200 microsecond intervals. Even if a function similar to the Arduino micros() had less than 1 microsecond resolution this would allow time calculations that are not possible with the time.monotonic() function.

#

romilly

[adafruit/circuitpython] Fork created: romilly/circuitpython

#

tannewt

[adafruit/circuitpython] New comment on issue #519: More accurate time reporting

@CameronDevine Interesting! How much data do you know you need to write ahead of time? Something like PulseOut might be adequate. It looks like it requires a carrier PWM signal though it could just be constant.

slender iron Jan 10, 2018, 6:40 PM

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fyi, I'm fixing the bundle

idle owl Jan 10, 2018, 6:40 PM

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Nice

slender iron Jan 10, 2018, 6:40 PM

#

adabot was confused by the directories that moved around

idle owl Jan 10, 2018, 6:40 PM

#

Ah

sick creek Jan 10, 2018, 6:40 PM

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@slender iron subrepos and directories

slender iron Jan 10, 2018, 6:41 PM

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yeah, and ones that move

solar whale Jan 10, 2018, 6:43 PM

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ruh-roh - I think I know what caused that 😦

manic glacierBOT Jan 10, 2018, 6:43 PM

#

dhalbert

[adafruit/circuitpython] New comment on issue #519: More accurate time reporting

came from here: asking there as well: https://forums.adafruit.com/viewtopic.php?f=60&t=129222

slender iron Jan 10, 2018, 6:43 PM

#

@solar whale it was me too deleting circuitpython

solar whale Jan 10, 2018, 6:44 PM

#

phew _ I thought it was my request to fix the typo in a link name...

slender iron Jan 10, 2018, 6:44 PM

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that did it too but its fine 😃

tulip sleet Jan 10, 2018, 6:45 PM

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oops - thought it would be ok

slender iron Jan 10, 2018, 6:45 PM

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np, its good for me to figure out

#

gah, adabot added the circuitpython directory back

idle owl Jan 10, 2018, 7:14 PM

#

@slender iron So should I start by changing the name of the Adafruit_CircuitPython_Featherwing/adafruit_featherwing/motor_featherwing.py to featherwing.py since we're going to be adding other wings to it? (This is on my fork, I'm not talking making changes to the current version yet.)

slender iron Jan 10, 2018, 7:15 PM

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nope, add more python files instead

idle owl Jan 10, 2018, 7:15 PM

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Ah ok. Each wing will have its own file?

slender iron Jan 10, 2018, 7:15 PM

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yup, so you only load what you need

idle owl Jan 10, 2018, 7:15 PM

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Ok got it

sick creek Jan 10, 2018, 7:17 PM

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what i have seen that like some have made all or targets like to include all but only load what you need from nuget

slender iron Jan 10, 2018, 7:39 PM

#

could somebody review this: https://github.com/adafruit/Adafruit_CircuitPython_Bundle/pull/42

GitHub

Add Motor and FeatherWing libraries. by tannewt · Pull Request #42 · adafruit/Adafruit_CircuitPython_Bundle

idle owl Jan 10, 2018, 7:40 PM

#

Yep

slender iron Jan 10, 2018, 7:40 PM

#

thanks

idle owl Jan 10, 2018, 7:40 PM

#

Is there a reason the two new URLs have .git at the end and the other one doesn't?

#

Ah nm, some do, some don't.

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Must work either way

slender iron Jan 10, 2018, 7:41 PM

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yeah weird

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yup

#

I just copy it from github's clone url

idle owl Jan 10, 2018, 7:41 PM

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Want me to merge?

slender iron Jan 10, 2018, 7:41 PM

#

yes please

idle owl Jan 10, 2018, 7:42 PM

#

I assume I don't need to do a release since it's the bundle

slender iron Jan 10, 2018, 7:42 PM

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yeah, I'm working on it

#

thats why I wanted to get the PR in before I uncomment adabot's release powers

idle owl Jan 10, 2018, 7:43 PM

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ah nice

timber lion Jan 10, 2018, 8:33 PM

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ah ouch that's weird it uses .git URLs

idle owl Jan 10, 2018, 8:33 PM

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why?

timber lion Jan 10, 2018, 8:33 PM

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that's going to break the adabot change i made, it does URL comparisons by chopping off the schema (up to ://) but still assumes the rest of the URL is the same

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i'll update it to chop off .git if it exists too

idle owl Jan 10, 2018, 8:33 PM

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ah

timber lion Jan 10, 2018, 8:34 PM

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@slender iron did you use git's submodule add to add that config or did you manually edit the .gitmodules file? just curious why it's not matching the rest of them

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if it was manually added it might have knock on implications with git submodule init.. be sure to try it

slender iron Jan 10, 2018, 8:35 PM

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I used git submodule add

timber lion Jan 10, 2018, 8:35 PM

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ah cute, must be git version differences

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cool i'll update adabot script to handle both csaes

slender iron Jan 10, 2018, 8:35 PM

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the url is just different because people got them different ways

timber lion Jan 10, 2018, 8:35 PM

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yeah the git submodule config schema has no preference

#

it's a github-ism to allow both .git and not .git at the end i think

slender iron Jan 10, 2018, 8:36 PM

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there were a bunch before this latest one that used .git suffixes

timber lion Jan 10, 2018, 8:36 PM

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yeah it works fine if the clone_url from github has .git and the submodule config has .git

slender iron Jan 10, 2018, 8:36 PM

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ah I see

tulip sleet Jan 10, 2018, 8:36 PM

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also some ssl urls were changed to https by hand

timber lion Jan 10, 2018, 8:37 PM

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better safe to handle any permutation

slender iron Jan 10, 2018, 8:37 PM

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yup yup

timber lion Jan 10, 2018, 8:37 PM

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yeah those should be ok, i strip out URL schema and ignore git:// http:// https:// etc

manic glacierBOT Jan 10, 2018, 8:43 PM

#

tannewt

[adafruit/circuitpython] New comment on issue #411: APDS9960 Driver

This is done here: https://github.com/adafruit/Adafruit_CircuitPython_APDS9960

#

tannewt

[adafruit/circuitpython] Issue closed: #411 APDS9960 Driver

#

deshipu

[adafruit/circuitpython] New comment on issue #386: atmel\-samd: File system erased on jittery power startup

As a side note, personally I would love to have some way of triggering this "bug" on purpose — the solution with Arduino programs for erasing the flash doesn't work with custom boards, as I would need to make Arduino board definitions for them first, etc.

#

dhalbert

[adafruit/circuitpython] New comment on issue #386: atmel\-samd: File system erased on jittery power startup

@deshipu I have been thinking of adding something like storage.format(...), with maybe some required True parameter to make clear it was dangerous.

timber lion Jan 10, 2018, 8:53 PM

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just sent over a pull with the change

#

i have no idea why git is so mad at it

#

it works fine.. the merge is angry for whatever esoteric git reason

manic glacierBOT Jan 10, 2018, 8:55 PM

#

deshipu

[adafruit/circuitpython] New comment on issue #386: atmel\-samd: File system erased on jittery power startup

Reminds me of the --clobber-my-computer option we have in some OpenStack tools. We could make it a required keyword argument, something like storage.format(delete_all_files=True) or such, but I wonder how much of a warning we actually need here?

slender iron Jan 10, 2018, 8:56 PM

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@timber lion its because I rebased your last PR which changed the commit shas

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you need to rebase onto the new master commit

manic glacierBOT Jan 10, 2018, 8:58 PM

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tannewt

[adafruit/circuitpython] New comment on issue #338: OneWire BusDevice

@caternuson this done?

#

webwurst

[adafruit/circuitpython] New star added

solar whale Jan 10, 2018, 9:19 PM

#

@idle owl @slender iron @tulip sleet I have a question about the use of the "frozen-modules" that are used with the CPX. As soon as someone copies the bundle /lib to their CPX, then the .mpy files in the /lib directory will get used in favor of the frozen modules, correct? In that case, users will not achieve the memory benifits of freezing the modules in the first place. Is this a concern? Should the guide instruct users to delete the forzen modules from /lib? Do we need a CPX bundle? Am I making sense?

idle owl Jan 10, 2018, 9:20 PM

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You're making sense.

tulip sleet Jan 10, 2018, 9:21 PM

#

@solar whale we've talked about this. sys.path puts .frozen last. The Adafruit_CircuitPython_CircuitPlayground library changes sys.path itself to use the frozen modules. The real reason to use the frozen modules is to make things fit that would otherwise not fit in RAM.

#

like the Express class in the CPlay library

#

but people have said that a separate bundle would be confusing

stuck elbow Jan 10, 2018, 9:23 PM

#

this is a hard decision, because on one hand you want to use the frozen libraries to save space, on the other hand you want to be able to override whatever is in the firmware

solar whale Jan 10, 2018, 9:23 PM

#

OK so if you load the Express module then you get the frozen modules first

idle owl Jan 10, 2018, 9:23 PM

#

Yes

tulip sleet Jan 10, 2018, 9:23 PM

#

~~just for it~~

#

well maybe not, I guess it changes sys.path for all following imports

stuck elbow Jan 10, 2018, 9:23 PM

#

could it be done so that frozen modules have priority over lib/ but not over /?

solar whale Jan 10, 2018, 9:24 PM

#

OK - that covers the "worst case" I think - I ran into this when I was trying some accelometer stuff and it would not fit with the .mpy lis3dh but it was ok with the frozen.

#

I was not using Express

tulip sleet Jan 10, 2018, 9:25 PM

#

@stuck elbow that is an interesting idea, but perhaps hard to explain to laypeople. If you want to update a broken frozen module, you have to put the replacement in / not lib/

solar whale Jan 10, 2018, 9:25 PM

#

good luck with that!

tulip sleet Jan 10, 2018, 9:26 PM

#

the idea now is that if/when you run out of RAM, you learn the secret incantation to use the frozen modules, otherwise you don't have to know anything special

stuck elbow Jan 10, 2018, 9:26 PM

#

perhaps we could have something like overrides/

tulip sleet Jan 10, 2018, 9:26 PM

#

@idle owl you have a comment re the beginner and the intention?

solar whale Jan 10, 2018, 9:27 PM

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For the "experienced" user it is not a problem - just manage /lib's content. For the newcommer, it may just have to be a learning curve.

idle owl Jan 10, 2018, 9:27 PM

#

Hmm

solar whale Jan 10, 2018, 9:28 PM

#

My real question was if it should even be mentioned in the guide?

idle owl Jan 10, 2018, 9:28 PM

#

I think we sort of had something like it initially but then took it out.

solar whale Jan 10, 2018, 9:29 PM

#

I does not sound like its been a big issue (yet) so I may be just looking for trouble.

idle owl Jan 10, 2018, 9:30 PM

#

Better to discuss it now than when we're panicking because something isn't working

#

I think this is a case where it works as it is, and if we run into mutliple use cases where another method makes more sense, we explore it at that point.

tulip sleet Jan 10, 2018, 9:31 PM

#

we haven't had many people complain yet about running out of RAM on CPX. Esp if they use Express, it's taken care of. We could add a "Using Builtin Frozen Modules" to the CPX guide if/when it becomes more of a support issue

solar whale Jan 10, 2018, 9:32 PM

#

Thanks for hearing me out.

tulip sleet Jan 10, 2018, 9:37 PM

#

@solar whale np! we went through very much this conversation a month or two ago

solar whale Jan 10, 2018, 9:39 PM

#

Ah - sorry I missed it! I did not know about the "sys.path" change in Express.py -- clever!

idle owl Jan 10, 2018, 9:39 PM

#

Yep! It's a totally valid concern! We're happy to hear you out

timber lion Jan 10, 2018, 9:43 PM

#

imho it's good to think about board specific bundles, eventually we'll need them when the bundle is too big for 2mb

#

it's 451kb right now so 1/4 of the way there

#

on CPX SPI libs for example aren't really possible to use and could be cut out

slender iron Jan 10, 2018, 9:46 PM

#

how would a board specific bundle save space?

#

ah, spi libs

#

I see

timber lion Jan 10, 2018, 9:47 PM

#

yeah not needed yet but eventually we might have to pick and choose

stuck elbow Jan 10, 2018, 9:47 PM

#

I have some problem with making a pull request

#

https://github.com/adafruit/circuitpython/compare/2.x...pewpew-game:2.x

GitHub

adafruit/circuitpython

circuitpython - CircuitPython - a Python implementation for teaching coding with microcontrollers

#

for some reason it's trying to change the submodules

slender iron Jan 10, 2018, 9:47 PM

#

did you do a git submodule update locally after pull/fetch?

stuck elbow Jan 10, 2018, 9:48 PM

#

yes, with --init and with --recursive, too

#

several times now

slender iron Jan 10, 2018, 9:51 PM

#

hrm

tulip sleet Jan 10, 2018, 9:51 PM

#

maybe compare these sha's:

halbert@salmonx:~/CP/2.x-circuitpython/frozen$ git submodule status
 7d8a8f99989a4de5b3fbf491df956d1aaca2c172 ../atmel-samd/freetouch (heads/master)
 9a49ca04e3754be246524e57f8c1810c76be5948 Adafruit_CircuitPython_BusDevice (2.0.2)
 74afff3ff912c9711d207671b8b9068358eaa0d2 Adafruit_CircuitPython_LIS3DH (4.0.0)
 8e1e5bbb86e03d539103c6d73ccac0cb27711b77 Adafruit_CircuitPython_NeoPixel (3.0.1)
 6c281ed26a2b38060e6a8c37c16f3bf6345cec2d Adafruit_CircuitPython_Thermistor (3.0.0)
 9b3092eb3b4b230a63c0c389bfbd3c55682c620f ../lib/axtls (heads/master-35-g9b3092e)
 dab957dacddcbf6cbc85d42df62e189e4877bb72 ../lib/berkeley-db-1.xx (heads/master-6-gdab957d)
 e9de7e35f2339598b16cbb375f9992643ed81209 ../lib/libffi (v3.2.1-146-ge9de7e3)
 5b8b5d459e7dd890724515bbfad86c705234f9ec ../lib/lwip (STABLE-1_4_1-RC1-13-g5b8b5d45)
 2001c62d1a0361c44acc7076d8ce91e1d1c66141 ../tools/python-semver (2.7.8-4-g2001c62)
 449f26673855736dbc0fc3f18d72403f25f62974 ../tools/uf2 (449f266)

slender iron Jan 10, 2018, 9:51 PM

#

was that after you commited it locally?

stuck elbow Jan 10, 2018, 9:51 PM

#

I just reset the head and commited it again, and seems good now

#

sorry for the kerfuffle

manic glacierBOT Jan 10, 2018, 9:52 PM

#

deshipu

[adafruit/circuitpython] Pull request opened: #520 Fix example for gamepad

The example code for the gamepad module would skip detected
button presses in the code that waits for a button to be released,
because it would run it even when no button is pressed.

Also updated the example pin names to not use RX and TX.

slender iron Jan 10, 2018, 9:52 PM

#

np

stuck elbow Jan 10, 2018, 9:54 PM

#

buttons are tricky

scenic maple Jan 10, 2018, 10:08 PM

#

I'm like trying to find the right package for a project that includes: circuit python or micro python, accelerator, magnetometer, micro sd card, and either wifi or bluetooth? Any suggestions?

lucid arch Jan 10, 2018, 10:12 PM

#

hi all

slender iron Jan 10, 2018, 10:13 PM

#

@scenic maple what do you mean by package?

#

hi @lucid arch

lucid arch Jan 10, 2018, 10:13 PM

#

i'm still testing my motor shield with CPX and arduino uno

#

weirdly, CPX only accepts max values of 127 when using analogWrite .. whereas arduino accepts 255

#

thats 7 bit vs 8 bit

#

anybody knows if the cpx board has a limit on pwm write of 7 bits?

slender iron Jan 10, 2018, 10:14 PM

#

the hardware can do higher than 8. are you using arduino on the circuitplayground?

lucid arch Jan 10, 2018, 10:14 PM

#

yeah

#

whats the limit? how many bits can it do max?

#

8 bit?

slender iron Jan 10, 2018, 10:15 PM

#

it depends on the pin

#

the DAC is 10 bit I believe but PWM timers can do higher resolution than that

lucid arch Jan 10, 2018, 10:16 PM

#

hmm, all the pins do pwm for cpx, accordinging to the docs

slender iron Jan 10, 2018, 10:16 PM

#

thats not surprising

#

I can't speak to the arduino implementation though, I only do circuitpython (and this is the #circuitpython-dev channel)

scenic maple Jan 10, 2018, 10:17 PM

#

Hi Rajiv, looking for the smallest form factor I can find

lucid arch Jan 10, 2018, 10:18 PM

#

@slender iron : fair enough, however this has made me curious now, since you'd do something similar using circuitpython and surely you should be able to query the board for max value an analogwrite would accept

scenic maple Jan 10, 2018, 10:19 PM

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yes, I'm just looking for the best hardware for the functionality that I can control with circuit python

slender iron Jan 10, 2018, 10:19 PM

#

@lucid arch yeah, we've done similar. Our analog writes are always 10 bit because we only use the DAC to do it

#

@scenic maple we don't have a single board that does all that you listed

scenic maple Jan 10, 2018, 10:20 PM

#

I understand

#

Was thinking of the feather with a two or three board expansion wing

lucid arch Jan 10, 2018, 10:20 PM

#

i see ... you mean circuitpython always writes analog through the DAC, right?

scenic maple Jan 10, 2018, 10:20 PM

#

but was wondering if there was a better solution

slender iron Jan 10, 2018, 10:21 PM

#

@lucid arch yeah, if people want to pwm they can do it explicitly

#

arduino uses pwm to fake analog sometimes

lucid arch Jan 10, 2018, 10:22 PM

#

i see ... thanks @slender iron .

slender iron Jan 10, 2018, 10:22 PM

#

np

lucid arch Jan 10, 2018, 10:22 PM

#

there does not seem to be a channel here that talks about cpx with arduino

slender iron Jan 10, 2018, 10:22 PM

#

#help-with-projects would work

scenic maple Jan 10, 2018, 10:22 PM

#

or possibly a pi zero based solution?

slender iron Jan 10, 2018, 10:22 PM

#

7 bit doesn't make sense to me. I'd expect it to be 8 at least

#

@scenic maple pi zero support normal python but not circuitpython

lucid arch Jan 10, 2018, 10:23 PM

#

why would it not make sense? is there something obvious?

slender iron Jan 10, 2018, 10:23 PM

#

@lucid arch it seems low to me. likely a bug somewhere

#

the support forums are also a good place to ask arduino questions

lucid arch Jan 10, 2018, 10:24 PM

#

cool

#

well @slender iron : you've been very kind and helpful

#

thanks for that

slender iron Jan 10, 2018, 10:25 PM

#

np, sorry I can't be more helpful. I live in a circuitpython bubble

lucid arch Jan 10, 2018, 10:25 PM

#

ha

#

np

slender iron Jan 10, 2018, 10:25 PM

#

you should try it if you haven't

#

it won't work on the uno but it would on a metro m0

lucid arch Jan 10, 2018, 10:27 PM

#

try what

slender iron Jan 10, 2018, 10:27 PM

#

circuitpython 😃

lucid arch Jan 10, 2018, 10:27 PM

#

ah, well i have the cpx

#

and i can try it on there

slender iron Jan 10, 2018, 10:27 PM

#

definitely!

tidal kiln Jan 10, 2018, 10:38 PM

#

most definitely:
https://learn.adafruit.com/adafruit-circuit-playground-express/circuitpython-quick-start
@lucid arch

Adafruit Circuit Playground Express

Make faster and easier than ever with MakeCode, CircuitPython or Arduino!

scenic maple Jan 10, 2018, 10:55 PM

#

carter, that looks interesting

raven canopy Jan 10, 2018, 11:12 PM

#

@scenic maple with the wifi being the limiting factor, the Feather Huzzah ESP8266 + Adalogger RTC/SD FeatherWing + FeatherWing Proto + accel/mag, would be your best bet with circuitpython.

Feather HUZZAH: https://www.adafruit.com/product/2821

Adalogger FeatherWing: https://www.adafruit.com/product/2922

FeatherWing Proto: https://www.adafruit.com/product/2884

#

would still mostly be a "roll you own". you could skip the Adalogger and try and implement an SD on a Proto.

scenic maple Jan 10, 2018, 11:14 PM

#

@raven canopy Thank-you

raven canopy Jan 10, 2018, 11:15 PM

#

yw. blinka

#

@scenic maple mind you, i didn't look at pin usage to see if the ESP8266 will be able to support all that...

#

also...afterthought. you could skip the Proto + accel/mag and use one of the accel/mag/gyro breakout boards. I think there are already circuitpython libraries for a couple of them.

#

@slender iron @tulip sleet @solar whale I am happy to report, I have the combined vagrant working. compiles both SAMD & ESP8266. I'm fairly certain the problem was trying to use SMB share folders & the VM.config for allowing symlinks. I am going to run one more destroy and rebuild test to verify. Even if that doesn't confirm an out-of-the-box solution, I have the workflow steps to make it manually work. THANK YOU ALL again for the help!

slender iron Jan 10, 2018, 11:36 PM

#

nice work @raven canopy !

#

This is a weird REPL session:

#

>>> import gc
>>> gc.mem_free()
19696
>>> from adafruit_featherwing.motor_featherwing import MotorFeatherWing
>>> gc.mem_free()
1360
>>> wing = MotorFeatherWing()
>>> gc.mem_free()
MemoryError: memory allocation failed, allocating 512 bytes
>>> gc.mem_free()
6784
>>> wing
<MotorFeatherWing object at 20005a50>

idle owl Jan 10, 2018, 11:36 PM

#

Hmm

slender iron Jan 10, 2018, 11:37 PM

#

how did I get 6000 bytes back between mem_frees? maybe the file system cache?

idle owl Jan 10, 2018, 11:37 PM

#

Maybe?

#

That's odd

#

Maybe gc actually did it's thing between

#

and you had a bunch of garbage.

slender iron Jan 10, 2018, 11:38 PM

#

the gc should try collecting before it throws a MemoryError though

idle owl Jan 10, 2018, 11:38 PM

#

should... maybe it reported too quick for itself for some reason?

slender iron Jan 10, 2018, 11:40 PM

#

looks like its reproducable

tulip sleet Jan 10, 2018, 11:41 PM

#

the constructor created a bunch of things that were not garbage at the time it tried to allocate something new. That failed, it tried to gc, that failed, it threw an exception. scope closed, now the assignments are garbage

#

or maybe it doesn't really try to gc if alloc fails

slender iron Jan 10, 2018, 11:42 PM

#

the memory error is thrown from mem_free

tulip sleet Jan 10, 2018, 11:42 PM

#

oy

slender iron Jan 10, 2018, 11:42 PM

#

let me update to official 2.2.0 and try

#

time to bug hunt

granite vapor Jan 10, 2018, 11:55 PM

#

Hey everyone! I've really been enjoying playing around with the esp8266 feather and circuitpython. Really cool stuff. I'm trying to use it to control some equipment here in our chemistry lab

idle owl Jan 10, 2018, 11:55 PM

#

Hi @granite vapor. That's neat!

granite vapor Jan 10, 2018, 11:56 PM

#

I was wondering if anyone knows the situation with the TTL serial ports. One port, as I understand is used for the programmer, another for the REPL. Is there a third? I'm trying to use RS232 and am trying to decide if this is possible.

idle owl Jan 10, 2018, 11:58 PM

#

I haven't worked with the ESP enough to know. Someone will know though!

stuck elbow Jan 11, 2018, 12:00 AM

#

There is only 1 uart, and it's used both for programming and for repl

#

Esp8266 has a second uart, but it's on pins that you cam't use

#

s/cam/can

solar whale Jan 11, 2018, 12:02 AM

#

You can connect directly to the RX/TX as well. Bypass usb.

stuck elbow Jan 11, 2018, 12:03 AM

#

But that's still the first uart with the repl on it

solar whale Jan 11, 2018, 12:04 AM

#

Yes

granite vapor Jan 11, 2018, 12:05 AM

#

Hey, thanks. Hmm. In this application I'll not be using the REPL (nice as that would be), because the esp8266 is receiving its commands via wifi. Do I need to disable the repl in my main.py for the rx/tx to function properly?

stuck elbow Jan 11, 2018, 12:06 AM

#

I'm afraid you can't. The things you type and see on the webrepl will also appear on the serial port.

#

There is a pull request enabling this in review in micropython since about a year

granite vapor Jan 11, 2018, 12:07 AM

#

It's not the webrepl, just a rest api

stuck elbow Jan 11, 2018, 12:08 AM

#

Then as long as your program is running, there shouldn't be anything on the serial.

#

The exceptions will still get printed there.

granite vapor Jan 11, 2018, 12:10 AM

#

oh, okay. good to know about exceptions. Can stdout/stderr be redirected?

#

(sorry about the incessant questions)

idle owl Jan 11, 2018, 12:11 AM

#

Don't be!

#

We'll always answer questions when we can

stuck elbow Jan 11, 2018, 12:13 AM

#

Not at the moment. You can catch the exceptions, but there is very limited set of informnation you can gfet from it, not enough to generate a proper traceback.

granite vapor Jan 11, 2018, 12:13 AM

#

gotcha. I guess if there is an unhandled exception then the program is stopped, so it doesn't really matter what happened to the serial port...

stuck elbow Jan 11, 2018, 12:14 AM

#

Well, if the other end is connected to, say, a nuclear reactor...

granite vapor Jan 11, 2018, 12:14 AM

#

XD

stuck elbow Jan 11, 2018, 12:15 AM

#

The random strings may get misinterpreted

granite vapor Jan 11, 2018, 12:16 AM

#

no radioactivity. just some pumps haha

#

In the micropython project I was reading about their asyncio port. I was thinking about implementing my internet i/o using coroutines, but this isn't part of circuitpython, right? how do y'all handle i/o that might block for a while during execution? is there enough memory to use threading

slender iron Jan 11, 2018, 12:20 AM

#

@granite vapor we don't have the asyncio stuff enabled and we are tight on memory for the M0 chips at least

stuck elbow Jan 11, 2018, 12:22 AM

#

And no threads.

#

So the answer is, I guess, you don't do multiple things at once.

#

Some things are built-in, like audioio can play a file in the background.

granite vapor Jan 11, 2018, 12:25 AM

#

Gotcha. The dream would be to read data and push it to the cloud asynchronously. Alas, haha.

stuck elbow Jan 11, 2018, 12:25 AM

#

You might need to switch to micropython for that.

slender iron Jan 11, 2018, 12:28 AM

#

uart buffers in the background (aka c interrupts too)

stuck elbow Jan 11, 2018, 12:31 AM

#

And wifi on the esp8266 has buffers too

#

So you can read a few bytes, write a few, etc.

granite vapor Jan 11, 2018, 12:32 AM

#

cool, okay

#

This was very helpful, thanks @stuck elbow @idle owl @solar whale @slender iron

slender iron Jan 11, 2018, 12:37 AM

#

np

idle owl Jan 11, 2018, 12:38 AM

#

yw!

slender iron Jan 11, 2018, 1:37 AM

#

its been so long since I've run gdb

slender iron Jan 11, 2018, 2:24 AM

#

I got so far as finding the memory error is in parsing the repl input

#

it allocates a stack of 512 bytes

hallow moss Jan 11, 2018, 4:19 AM

#

Anyone have some time to help a beginner with libraries, buttons, and general questions?

slender iron Jan 11, 2018, 5:10 AM

#

@hallow moss yeah! post away. (even when we're not post and we'll get back to you)

hallow moss Jan 11, 2018, 5:18 AM

#

Great! Let me find out where to begin. I have a Gemma M0 with 1 neopixel hooked up to D1. I've gotten the blinky example running on that neopixel. I'm now trying to get the button I've hooked up to D2 configured to change the color of the Neopixel.

#

I'm not sure if the code takes a long time to save to the Gemma, or if I missed a start-up guide to onboard LED flashing codes, but it doesn't seem to like the button changes I've added.

#

Here's the btn part that's not working as expected:

#

from digitalio import DigitalInOut, Direction, Pull, digitalRead

btnPIN = board.D2
bool btnPressed = false;
btn = DigitalInOut(btnPIN)
btn.direction = Direction.INPUT
btn.pull = None

mode = 0 + 2

while True:

if (btnPressed and digitalRead(btnPIN)):
    if mode == 5:
        mode = 0
    else
        mode = mode + 1
btnPressed = digitalRead(btnPIN)

if mode == 0:
    pixels.fill((0,255,0))
    pixels.show()
elif mode == 1:
    pixels.fill((0,0,255))
    pixel.show()

slender iron Jan 11, 2018, 5:36 AM

#

@hallow moss do you have a serial connection through screen or putty?

#

it flashes the on board led when errors occur. you can get more info about them through the serial connection

hallow moss Jan 11, 2018, 5:37 AM

#

I don't. I just set it up with Mu.. I think that was the recommended IDE.

#

From what I've researched, the Repl will show the serial, but I need to get MicroPython on the gemma before that'll work.

#

I fixed the else to else:

slender iron Jan 11, 2018, 5:49 AM

#

@hallow moss Mu should work pretty reliably. The instructions are here: https://learn.adafruit.com/welcome-to-circuitpython/kattni-connecting-to-the-serial-console

Welcome to CircuitPython!

New to CircuitPython? This is the place to start.

#

getting serial going will let you read error text

hallow moss Jan 11, 2018, 5:52 AM

#

@slender iron Yep! That's where I found out about Mu. Clicking my REPL button gives this error: Could not find an attached BBC micro:bit.

slender iron Jan 11, 2018, 5:52 AM

#

ah! In the bottom right there is something you can click to switch the mode

#

it must be in micro:bit mode and not adafruit mode

#

(I don

hallow moss Jan 11, 2018, 5:55 AM

#

Hm.. I'm not seeing anything like that.

slender iron Jan 11, 2018, 5:55 AM

#

I don't use mu so I can't be more specific

#

I don't think it looks like a button, could you take a screenshot?

#

in the screenshot here: https://learn.adafruit.com/welcome-to-circuitpython/installing-mu-editor

Welcome to CircuitPython!

New to CircuitPython? This is the place to start.

#

there is "adafruit" and a gear. my guess is yours says something like mciro:bit

hallow moss Jan 11, 2018, 6:00 AM

#

Mu screenshot

📎 unknown.png

slender iron Jan 11, 2018, 6:01 AM

#

hrm, I don't see anything in the bottom right

#

do you remember what version it is?

hallow moss Jan 11, 2018, 6:02 AM

#

oic.

#

I don't know why my Mu doesn't have it. Must have chose wrong initially. I downloaded it again and it seems to have that option now.

#

YES!! I don't think I've even been so excited to see an error console! 😄

#

@slender iron Thanks so much for getting me going! Few more issues to wade through, but that's what makes it fun.

slender iron Jan 11, 2018, 6:18 AM

#

great! come back if you need more help

hallow moss Jan 11, 2018, 6:21 AM

#

WIll do!.

slender iron Jan 11, 2018, 6:25 AM

#

good night! I'm off to bed

heavy galleon Jan 11, 2018, 2:22 PM

#

Good morning! I posted on here a few days ago about trying to make a timer in CircuitPython. I got great advise on how I needed to use the time.monotonic() function. Now I am seeking help in the formatting of my code: https://github.com/Bazooka77/Relay_Timer. I am new to both CircuitPython and GitHub so any help is greatly appreciated! Thanks!

robust coral Jan 11, 2018, 3:01 PM

#

Your if and else and elif statements need to end in colons (:), right? Also I don't think this is a thing: elapsed > 0 < duration. You want elapsed>0 and duration>0. Your if elapsed = 0 needs double-equal, otherwise it's an assignment, so if elapsed==0:.

prime flower Jan 11, 2018, 3:04 PM

#

@heavy galleon few issues, nothing major and @robust coral caught most of them. You might want to run this on your hardware and pop open the REPL to see any errors. Mu has a "checker" feature that's super helpful, if you have it installed (https://learn.adafruit.com/welcome-to-circuitpython?view=all#installing-mu-editor)

Welcome to CircuitPython!

New to CircuitPython? This is the place to start.

solar whale Jan 11, 2018, 3:05 PM

#

much to my surprise this is valid in Python: ```>>> x= 10

x >0 < 100
True

robust coral Jan 11, 2018, 3:05 PM

#

If all your relays always need to do the same thing together, maybe make an array of them instead of 4 separate variables, and write a little setRelay(value) routine to enforce the uniformity.

prime flower Jan 11, 2018, 3:06 PM

#

^ this, and iterate thru them with a for loop

#

I have something similar in how I set the R, G, B cathodes of a RGB LED in this snippet on Line 30 (https://github.com/brentru/METROX-Examples-and-Project-Sketches-1/blob/master/circuitpython/CIRC12/colorful_light.py#L30)

GitHub

brentru/METROX-Examples-and-Project-Sketches-1

Contribute to METROX-Examples-and-Project-Sketches-1 development by creating an account on GitHub.

heavy galleon Jan 11, 2018, 3:08 PM

#

I want to type the duration variable into the program so that when button is pressed all relays activate for the given value of that variable. Also I want to have it so if the button is pressed a second time before the duration is finished the timer stops.

#

@robust coral Making an array seems like the right way to go, I attempted this at first but it didn't work because I am learning the formatting

tidal kiln Jan 11, 2018, 3:10 PM

#

@heavy galleon you have several calls to time_monotonic(), are those suppose to be time.monotonic()?

#

somewhere around line 20, could do:

relays = [ relay1, relay2, relay3, relay4 ]

#

then the looping is like:

for r in relays:
    r.value = True

#

nothing special about use of r, just needs to be some available valid variable name

heavy galleon Jan 11, 2018, 3:15 PM

#

Ok I was going to ask about that

tidal kiln Jan 11, 2018, 3:17 PM

#

up to you:

for mmmpancakes in relays:
    mmmpancakes.value = True

#

would also work

heavy galleon Jan 11, 2018, 3:17 PM

#

@prime flower in the MU checker why does it say my indentation is incorrect it seems fine to me

tidal kiln Jan 11, 2018, 3:18 PM

#

if you don't have the : in place, then it's going to be very confused

prime flower Jan 11, 2018, 3:18 PM

#

try backspacing up to the start of the line and hitting tab to fix your indentation

jovial wind Jan 11, 2018, 3:18 PM

#

@hallow moss if you have version 1 of mu editor, you should be able to use REPL

#

as in, there's a button on top that says 'REPL' which will give you a python shell to debug with

robust coral Jan 11, 2018, 3:24 PM

#

def setAllRelays(v): for r in relays: r.value = v

heavy galleon Jan 11, 2018, 3:29 PM

#

ok i added the relay array but I need to figure out why it doesn't like my conditional statements first

#

if elapsed = 0:

tidal kiln Jan 11, 2018, 3:29 PM

#

==

raven canopy Jan 11, 2018, 3:29 PM

#

you need double =

upbeat plover Jan 11, 2018, 3:29 PM

#

i cant get this to work right

sounds = [sound265(), sound330(), sound392(), sound530(), sound675(), sound1075(), time.sleep(1), 'test']

while True:
    random.choice(sounds)

but this horrible mess works

while True:
    sounds = random.randrange(0,7)
    if sounds == 0:
        sound265()
    elif sounds == 1:
        sound330()
    elif sounds == 2:
        sound392()
    elif sounds == 3:
        sound466()
    elif sounds == 4:
        sound530()
    elif sounds == 5:
        sound675()
    elif sounds == 6:
        sound1075()
    elif sounds == 7:
        time.sleep(0.5)

#

seems like when the defined command gets called from the random choice it does nothing

prime grove Jan 11, 2018, 3:32 PM

#

I'm not a Python expert, but if you did that in C, it would put the return values of your functions into the array since you added the ()

tidal kiln Jan 11, 2018, 3:32 PM

#

@upbeat plover remove ()s from array

upbeat plover Jan 11, 2018, 3:32 PM

#

😮 okay

tidal kiln Jan 11, 2018, 3:33 PM

#

then do:

random.choice(sounds)()

upbeat plover Jan 11, 2018, 3:33 PM

#

thanks

tidal kiln Jan 11, 2018, 3:34 PM

#

won't work for the last two entries though: time.sleep(1), 'test'

upbeat plover Jan 11, 2018, 3:34 PM

#

yeah i noticed that part but im okay with adding some other code

prime grove Jan 11, 2018, 3:39 PM

#

your array is an array of pointers to functions, time.sleep(1) will put its return value (if any) and 'test' is a pointer to a string

#

replace the last 2 entries with: my_delay and my_print_test. Functions you write which take no parameters and do the actions you wanted.

upbeat plover Jan 11, 2018, 3:53 PM

#

nice dude

prime flower Jan 11, 2018, 3:58 PM

#

@stuck elbow Want me to test your gamepad PR?

stuck elbow Jan 11, 2018, 4:06 PM

#

@prime flower there is a syntax error there, I travelled today whole day, so I couldn't fix it

#

fixing it now

prime flower Jan 11, 2018, 4:06 PM

#

np, lmk when so I can test on HW.

stuck elbow Jan 11, 2018, 4:07 PM

#

done

#

thank you!

manic glacierBOT Jan 11, 2018, 4:57 PM

#

brentru

[adafruit/circuitpython] New comment on pull request #520: Fix example for gamepad

Works, looks good.

Tested on:
Adafruit CircuitPython 2.2.0 on 2017-10-17; Adafruit Metro M0 Express with samd21g18

manic glacierBOT Jan 11, 2018, 5:44 PM

#

deshipu

[adafruit/circuitpython] Pull request closed: #520 Fix example for gamepad

#

deshipu

[circuitpython:2\.x] 2 new commits

0ff128e Fix example for gamepad - deshipu
8251abb Merge pull request #520 from pewpew-game/2.x - deshipu

heavy galleon Jan 11, 2018, 6:05 PM

#

how come if I set a variable like a = 0 then inside a function do if a == 0: i get local variable (defined in enclosing scope) referenced before assignment? I assigned the variable then asked if it was == 0 , I did not ask then assign?

stuck elbow Jan 11, 2018, 6:06 PM

#

can you paste a working example?

heavy galleon Jan 11, 2018, 6:07 PM

#

yes

#

def funct1():
if buttonpress == 0:
butonpress = 1
funct2()

else:
    buttonpress = 0
    print("Started at: ", ticks)
    print("Stopped at: ", elapsed)
    print("Duration: ", duration)
    for r in relays:
        r.value = False
    elapsed = 0
    start_time = 0
    end_time = 0
    time.sleep(.5)

#

heres the main loop

#

while True:
if button.value:
funct1()
time.sleep(.5)

else:
    print("Elapsed Time: ", elapsed, "/", duration)
    time.sleep(.5)

#

I set all the variables to 0 at the begining

#

trying to say has the button been pressed before? with buttonpress = 1 for yes and 0 for no

tidal kiln Jan 11, 2018, 6:13 PM

#

@heavy galleon full code might help better. can you just commit your current changes and push to your repo which you linked above? or put the current version in a gist?

heavy galleon Jan 11, 2018, 6:13 PM

#

yes sorry

#

https://github.com/Bazooka77/Relay_Timer

GitHub

Bazooka77/Relay_Timer

Relay_Timer - A relay timer for Circuit Python

stuck elbow Jan 11, 2018, 6:17 PM

#

@heavy galleon an assignment inside a function creates a new local variable, instead of assigning to a global variable

#

@heavy galleon to change it, you need to use the global (or nonlocal) keyword

#

to "pull" the global variable into the local scope

heavy galleon Jan 11, 2018, 6:18 PM

#

cool, i thought it might have to do with global and local varibles I did read you have to do something extra to set it globally while inside a function do remember what I look it up

stuck elbow Jan 11, 2018, 6:19 PM

#

you need global buttonpress at the beginning of funct1 for instance

tidal kiln Jan 11, 2018, 6:19 PM

#

also, small typo line 28

#

for illustrative purposes:

>>> def foo():
...     if a == 42:
...         print("correct")
... 
>>> foo()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 2, in foo
NameError: global name 'a' is not defined
>>> a = 0
>>> foo()
>>> a = 42
>>> foo()
correct
>>>

note you don't need global inside the function if you are just checking the value

#

but if you do modify:

>>> def foo():
...     a = 42
... 
>>> a = 0
>>> foo()
>>> a
0
>>>

#

you need global:

>>> def foo():
...     global a
...     a = 42
... 
>>> a = 0
>>> foo()
>>> a
42
>>>

heavy galleon Jan 11, 2018, 6:34 PM

#

Well, I don't have anymore syntax errors but my code still doesnt work😋

stuck elbow Jan 11, 2018, 6:43 PM

#

that's harsh

heavy galleon Jan 11, 2018, 6:44 PM

#

part of learning right? I'm gonna figure this thing out eventually

#

Thanks for everyones help today, I will be back tomorrow with more problems 😀

stuck elbow Jan 11, 2018, 6:46 PM

#

it helps to explain the program line by line out loud

#

we call that "rubberducking"

heavy galleon Jan 11, 2018, 6:48 PM

#

I will do that and add in some comments explaining aswell

devout jolt Jan 11, 2018, 9:07 PM

#

Hi @slender iron @stuck elbow or anyone else who might know, are there plans for adding USB HID data to the usb_hid C core module? I'm looking to start adding it myself and want to make sure I'm duplciating effort.

stuck elbow Jan 11, 2018, 9:09 PM

#

either @slender iron or @tulip sleet would know

devout jolt Jan 11, 2018, 9:09 PM

#

Thanks. Looks like micropython has it but for pyboard, so not too useful I think for SAMD21

stuck elbow Jan 11, 2018, 9:13 PM

#

I don't even know if the peripheral is capable of it

devout jolt Jan 11, 2018, 9:15 PM

#

The SAMD21? I'm pretty sure it's possible to add a descriptor for HID data alongside the mouse and keyboard ones that are already there. Just a matter of code

solar whale Jan 11, 2018, 9:43 PM

#

@tulip sleet @slender iron odd behavior with new bundle and CP3.0 master - on my metro M4 Express - every time I try to import adafruit_ssd1306 it hangs - then dismounts the FS and the FS appears to be corrupted. I have restored the FS 3 times and it is very repeatable. I am using the py verisom of the bundle. Just before the last import, I opened lib/adafruit_ssd1306.py and got no complaint. Any clue waht is going on. Is anyone willing to try to repoduce this?

slender iron Jan 11, 2018, 9:43 PM

#

@devout jolt I don't know what hid data is but I'm hoping to allow for dynamic descriptors in 3.x

#

@solar whale dan is on vacation through tuesday. I'd suggest filing a bug. I'm deep in memory debugging in 2.x now

solar whale Jan 11, 2018, 9:45 PM

#

ok - trying to figure out if the issue is with the bundle or CP 3.0 - I'll file an issue somewhere soon....

#

after reboot - the FS seems to be intact

slender iron Jan 11, 2018, 9:47 PM

#

sounds like cp 3.0 since it dismounts

solar whale Jan 11, 2018, 9:48 PM

#

yup - I'll file it there

slender iron Jan 11, 2018, 9:48 PM

#

thanks!

devout jolt Jan 11, 2018, 9:50 PM

#

Hi @slender iron , I mean the "HID raw"/"hid-data" technique seen in Teensy and many old V-USB projects where the descriptor is just a single 64-byte buffer that can be sent and Input, Output, or Feature reports. cf https://www.pjrc.com/teensy/rawhid.html

#

but dynamic USB HID descriptors would be super keen

slender iron Jan 11, 2018, 9:52 PM

#

@devout jolt I started: https://github.com/adafruit/usb_descriptor hoping we'd be able to use it from within circuitpython too

GitHub

adafruit/usb_descriptor

usb_descriptor - Python library for generating USB Descriptor byte strings using struct only.

#

I haven't added HID yet though IIRC

devout jolt Jan 11, 2018, 9:53 PM

#

@slender iron I was just looking at that. Thanks for your work!

slender iron Jan 11, 2018, 9:53 PM

#

np 😃

manic glacierBOT Jan 11, 2018, 9:57 PM

#

jerryneedell

[adafruit/circuitpython] Issue opened: #521 on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

WIth CP.3.0 master and l20180110 Bundel release I amm running into a problem on my Metro M4 Express.
Every time I try to import adafruit_ssd1306 the system hangs then eventaully dismounts the FS and dmesg reports a read error. I have recreated and relaoded the FS several times and this is very repeatable. I am using the "py" version of the bundle, but I did verify that is also occurs with the .mpy version.
I am able open and read the lib/adafruit_ssd1306.py file.
I have run a few ot...

idle owl Jan 11, 2018, 10:18 PM

#

@slender iron So I picked the Joy Featherwing to start with and it seems like this should have had a library to begin with. It's using const in the code itself. But I'm having a lot of trouble translating the code into a lib. I changed up some stuff including typos from the guide version (half fixed already in the guide).

#

https://gist.github.com/kattni/5db8000444e1f6f05ced02304d42eabb

Gist

joy_featherwing.py

#

Is where I'm at with the code. Here's all I have for the lib:

#

https://gist.github.com/kattni/a1adf7a1f6b6d93c2d86864eaca97e33

Gist

joy_featherwing_lib.py

#

Didn't update that for linting before pasting it, apparently.

#

And just fixed a couple of other things too.

slender iron Jan 11, 2018, 10:23 PM

#

@idle owl try starting with what attributes you'd expect it to have

#

like button_down

idle owl Jan 11, 2018, 10:24 PM

#

ok

stuck elbow Jan 11, 2018, 10:25 PM

#

I wonder how that library would be used in practice in the first place

#

you would have to keep polling the button state in a rather tight loop all the time

prime flower Jan 11, 2018, 10:31 PM

#

yeah, I assume the arduino one works with IRQs

stuck elbow Jan 11, 2018, 10:33 PM

#

except that doesn't help with the analog joystick

#

but that's much slower than button presses, so maybe you would get away with just polling there

#

especially if you have some histeresis in how you interpret the readings

prime flower Jan 11, 2018, 10:34 PM

#

wouldnt you want lower latency for the joystick?

stuck elbow Jan 11, 2018, 10:35 PM

#

depends on the use case, if it's some game-like thing, you want one reading per frame

prime flower Jan 11, 2018, 10:35 PM

#

(just asking, I don't have any experience with gamepad-like peripherals but they're interesting to me)

stuck elbow Jan 11, 2018, 10:35 PM

#

because that's how fast you are updating the state anyways

#

if it's more of a menu-like thing, I don't know

#

maybe we should start with use cases first

#

then write the code that seems obvious for those use cases

#

and then design the api so that this code works

prime flower Jan 11, 2018, 10:37 PM

#

good way to go about it

stuck elbow Jan 11, 2018, 10:38 PM

#

I can thiink about three main uses: remote-controlled toy, video game and menu

prime flower Jan 11, 2018, 10:38 PM

#

what type of menu?

stuck elbow Jan 11, 2018, 10:38 PM

#

like you have in your mp3 player

prime flower Jan 11, 2018, 10:39 PM

#

so, interfacing with an OLED display maybe?

stuck elbow Jan 11, 2018, 10:39 PM

#

it waits for you to do something, and then something happens

#

as opposed to a video game, where something happens all the time

#

well, there are many different kinds of displays that could be used, you could even just display it in the console

manic glacierBOT Jan 11, 2018, 10:44 PM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

narrowing it down - this line causes it to hang:
from adafruit_bus_device import i2c_device, spi_device
or just
from adafruit bus_device import i2c_device
also causes hang

but
import adafruit_bus_device is OK ??

stuck elbow Jan 11, 2018, 10:45 PM

#

the point is, you have a different event model in "wait for the user to do something, then react" than in "continuously relay what the user is doing to the toy" and "run the game and react to what the user did at the same time"

idle owl Jan 11, 2018, 10:45 PM

#

interesting

stuck elbow Jan 11, 2018, 10:46 PM

#

though the first two can be pretty similar

manic glacierBOT Jan 11, 2018, 10:57 PM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

The hang can be caused by:
from adafruit_bus_device import i2c_device
or
from adafruit_bus_device import spi_device

Adafruit CircuitPython 3.0.0-alpha.1-53-gd201ac2-dirty on 2018-01-11; Metro M4 Express with samd51j19

import adafruit_bus_device
dir
<function>
dir()
['name', 'adafruit_bus_device']
dir(adafruit_bus_device)
['path', 'name', 'file']

tawny creek Jan 11, 2018, 11:03 PM

#

@stuck elbow yeah thats a good point. I had to ditch my joy featherwing because i couldnt get the buttons to work the way i wanted it to

stuck elbow Jan 11, 2018, 11:04 PM

#

I had a similar problem to be honest

#

The only way I could think of would be to modify the seesaw firmware to add buffering on the featherwing side

#

but that would make it much less universal

tawny creek Jan 11, 2018, 11:07 PM

#

I dont recall but I think i had similar issues getting it to work on arduino too, not cp specific

stuck elbow Jan 11, 2018, 11:07 PM

#

the polling model is tricky

tawny creek Jan 11, 2018, 11:07 PM

#

was a lot easier to wire up a joystick and 4 buttons on a pcb and use 5 pins

stuck elbow Jan 11, 2018, 11:08 PM

#

especially since the operating systems, to which people are used, usually have a keyboard buffer and joystick events

idle owl Jan 11, 2018, 11:08 PM

#

hmm

tawny creek Jan 11, 2018, 11:09 PM

#

I wouldnt say it's beginner friendly

#

https://forums.adafruit.com/viewtopic.php?f=19&t=126732

stuck elbow Jan 11, 2018, 11:12 PM

#

I don't understand why debouncing couldn't happen on the featherwing

#

it has a full-blown microcontroller with a lot of spare room

idle owl Jan 11, 2018, 11:14 PM

#

Is that a matter of a driver for it?

stuck elbow Jan 11, 2018, 11:17 PM

#

unfortunately not, it's a matter of the firmware

#

so it's out of our hands

idle owl Jan 11, 2018, 11:17 PM

#

ah.

stuck elbow Jan 11, 2018, 11:17 PM

#

but I think that it would be super-cool if the driver did debouncing if the firmware doesn't

tawny creek Jan 11, 2018, 11:17 PM

#

https://github.com/leonidlezner/FeatherJoyWing

GitHub

leonidlezner/FeatherJoyWing

FeatherJoyWing - Enables an easy interaction with the JoyWing Feather by Adafruit

stuck elbow Jan 11, 2018, 11:17 PM

#

of course that is difficulty nightmare

idle owl Jan 11, 2018, 11:17 PM

#

Do you think it's worth putting a stripped down version of the seesaw lib into the joy_featherwing helper lib I'm doing

tawny creek Jan 11, 2018, 11:18 PM

#

I just saw this

idle owl Jan 11, 2018, 11:18 PM

#

no probably not. I don't think it would be as stripped down as I think it would really end up being.

stuck elbow Jan 11, 2018, 11:19 PM

#

yeah, and then you would need to update it if the seesaw stuff is ever updated

idle owl Jan 11, 2018, 11:19 PM

#

yeah nm.

stuck elbow Jan 11, 2018, 11:19 PM

#

better keep the maintenance costs low

idle owl Jan 11, 2018, 11:19 PM

#

valid.

stuck elbow Jan 11, 2018, 11:20 PM

#

@tawny creek that looks interesting!

tawny creek Jan 11, 2018, 11:20 PM

#

@stuck elbow I'm gonna try it out later, see if it works alright 😃

idle owl Jan 11, 2018, 11:21 PM

#

what is .cpp

#

Haven't worked with Arduino really

tidal kiln Jan 11, 2018, 11:22 PM

#

c++ source file

idle owl Jan 11, 2018, 11:22 PM

#

Ah

tidal kiln Jan 11, 2018, 11:22 PM

#

.h are header files

idle owl Jan 11, 2018, 11:22 PM

#

Is // a comment in c++

tidal kiln Jan 11, 2018, 11:22 PM

#

yep

#

/* */ for multiline

idle owl Jan 11, 2018, 11:23 PM

#

I don't know why that seems familiar to me.

stuck elbow Jan 11, 2018, 11:23 PM

#

JavaScript

idle owl Jan 11, 2018, 11:23 PM

#

But I was already aware of that from something

#

Never did that either

stuck elbow Jan 11, 2018, 11:23 PM

#

Java

idle owl Jan 11, 2018, 11:23 PM

#

Nope

stuck elbow Jan 11, 2018, 11:23 PM

#

any other C-like language

idle owl Jan 11, 2018, 11:24 PM

#

That's the thing, I don't know what falls into that category. Obviously something I've used or at least know how to read.

stuck elbow Jan 11, 2018, 11:24 PM

#

pretty much anything that uses braces for grouping code

idle owl Jan 11, 2018, 11:25 PM

#

What does the int8_t part of int8_t x = ss.analogRead(JOYSTICK_H) / 4 - 128; mean?

tidal kiln Jan 11, 2018, 11:26 PM

#

8 bit integer

idle owl Jan 11, 2018, 11:26 PM

#

ah

tidal kiln Jan 11, 2018, 11:26 PM

#

http://en.cppreference.com/w/c/types/integer

integer

stuck elbow Jan 11, 2018, 11:26 PM

#

in C variables have types, not their values

idle owl Jan 11, 2018, 11:27 PM

#

hmm ok

prime grove Jan 11, 2018, 11:27 PM

#

a better way of saying that is C requires variable types be explicitly declared while Python implies the type from the value you first assign it

tidal kiln Jan 11, 2018, 11:27 PM

#

in C, the actual size of an int is "implementation dependent"

stuck elbow Jan 11, 2018, 11:28 PM

#

@prime grove that's not true, as you can always assign something else

prime grove Jan 11, 2018, 11:28 PM

#

which usually means the native register size (except in the case of AVR 8-bit MCUs)

tidal kiln Jan 11, 2018, 11:28 PM

#

so the type defs in stdint.h provide fixed sized options

prime grove Jan 11, 2018, 11:28 PM

#

I'm not a python expert, thanks for the clarification

stuck elbow Jan 11, 2018, 11:29 PM

#

@prime grove python's variables are more like pointers, they just point to values, which in turn have their types

idle owl Jan 11, 2018, 11:30 PM

#

this CircuitPython code for this was definitely translated directly from the Arduino code. The oddness of it is making a lot more sense. @tawny creek did you get that link from the featherwing guide? It's there too if that's not where you got it

#

@stuck elbow So would all of this work better if CircuitPython were using an interrupt pin as well? I didn't realise it had the optional interrupt pin jumpers on the bottom. Obviously a lib would have to work with and without the interrupt pin but still.

#

Looking at the schematic I'm not even sure how it interacts with interrupts.

stuck elbow Jan 11, 2018, 11:40 PM

#

I'm honestly not sure how well the interrupt pin would work with debouncing on the CP side

idle owl Jan 11, 2018, 11:41 PM

#

Ok

stuck elbow Jan 11, 2018, 11:41 PM

#

I suppose you could record events with timestamps in a buffer, and use the timestamps to decide if a button is bouncing or not

#

but I can't think of a way of coding that elegantly

idle owl Jan 11, 2018, 11:42 PM

#

Neither can I, but that's not really saying much. If you can't think of a way, then it's probably unlikely

stuck elbow Jan 11, 2018, 11:42 PM

#

and then there is the joystick, which has no interrupts because it's analog

idle owl Jan 11, 2018, 11:42 PM

#

ah ok

stuck elbow Jan 11, 2018, 11:45 PM

#

I guess a library that just copies the Arduino one is a start

#

ad then we can improve it

idle owl Jan 11, 2018, 11:46 PM

#

I'm not seeing an Arduino lib for it. Are you making a general reference or do you have a specific one in mind?

#

Also I take it # doesn't comment out in Arduino?

prime grove Jan 11, 2018, 11:47 PM

#

it would be good to see a "scope view" of the bouncing switches. It might be as simple as sampling them at twice the average settling time

stuck elbow Jan 11, 2018, 11:47 PM

#

the one that @tidal kiln linked?

idle owl Jan 11, 2018, 11:48 PM

#

Oh. Ok. I was trying to find an official one.

stuck elbow Jan 11, 2018, 11:48 PM

#

https://github.com/leonidlezner/FeatherJoyWing

GitHub

leonidlezner/FeatherJoyWing

FeatherJoyWing - Enables an easy interaction with the JoyWing Feather by Adafruit

idle owl Jan 11, 2018, 11:48 PM

#

Yeah I still have it open, I wasn't thinking about that one. Thanks 😃

prime grove Jan 11, 2018, 11:49 PM

#

@stuck elbow interesting coding style; near zero comments 😦

tidal kiln Jan 11, 2018, 11:50 PM

#

@idle owl in c/c++ # is a prefix for preprocessor directives, like #define and #include

stuck elbow Jan 11, 2018, 11:50 PM

#

welcome to the open source

idle owl Jan 11, 2018, 11:51 PM

#

@tidal kiln ah thanks

#

So the .h and the .cpp file go together to make the lib?

prime grove Jan 11, 2018, 11:51 PM

#

@stuck elbow you're right of course. I try to make my GitHub projects more understandable

#

and optimized (when possible)

tidal kiln Jan 11, 2018, 11:51 PM

#

in general, yes

stuck elbow Jan 11, 2018, 11:51 PM

#

@idle owl the .h file is copy-pasted where it says #include in the .cpp file

idle owl Jan 11, 2018, 11:51 PM

#

I saw that, wanted to make sure. Ok good.

stuck elbow Jan 11, 2018, 11:52 PM

#

it's like import, but dumber 😃

tidal kiln Jan 11, 2018, 11:52 PM

#

the build goes something like: source code -> preprocessor -> compiler

#

the compiler won't see the #'s

idle owl Jan 11, 2018, 11:53 PM

#

oh right, compiler. needs to be compiled.

#

I see

little depot Jan 11, 2018, 11:54 PM

#

Hi im new to discord and circuit python
I love circuitpython so far, i think i might like it more than arduino (jurry is till out though)

idle owl Jan 11, 2018, 11:54 PM

#

Welcome @little depot !

little depot Jan 11, 2018, 11:54 PM

#

@idle owl thanks!

stuck elbow Jan 11, 2018, 11:56 PM

#

@little depot glad to see you like it, we are all very excited by it ourselves

manic glacierBOT Jan 11, 2018, 11:57 PM

#

ladyada

[adafruit/circuitpython] Issue opened: #522 playing audio and then doing neopixels hardcrashes

if you start to play a file, then do some neopixel stuff before the file is done playing, you get a hardcrash!
verified with 2.1 and 2.2

little depot Jan 11, 2018, 11:58 PM

#

@stuck elbow yeah i cant wait untill there is widespread library support

Question:
Im using the Feather Adaloger M0 and
i was wondering
how to drive a pin with pwm?

this is what i found on pwm
https://learn.adafruit.com/adafruit-gemma-m0/circuitpython-pwm

Adafruit Gemma M0

The Gemma M0 will super-charge your wearables! Small, light, and it's easy to use, so you can do more.

stuck elbow Jan 11, 2018, 11:59 PM

#

@little depot that should work, only pins will be different

little depot Jan 12, 2018, 12:01 AM

#

what would be the equvelant of
analogWrite(255) => pwm is 100%

#

im trying to dim an led

tidal kiln Jan 12, 2018, 12:04 AM

#

set duty_cycle to 65535

little depot Jan 12, 2018, 12:35 AM

#

@tidal kiln thanks

#

that did the trick!

timber mango Jan 12, 2018, 1:15 AM

#

So I wrote some simple code to make my CPX tell me what the IR sensor is reading

#

from analogio import AnalogIn
import board
import time

while True:
    print(AnalogIn(board.A10))
    time.sleep(0.1)

#

It gives me an error telling me

  File "main.py", line 6, in <module>
AttributeError: 'module' object has no attribute 'A10'

#

According to the learn article, A10 should be connected to the IR sensor. What's happening?

stuck elbow Jan 12, 2018, 1:17 AM

#

if you type in the repl import board and then board. and press tab, you will see what is available

idle owl Jan 12, 2018, 1:18 AM

#

Yah. That's not how board reads it.

timber mango Jan 12, 2018, 1:19 AM

#

But the learn articlehas code that reads pin A1 this way?

idle owl Jan 12, 2018, 1:19 AM

#

A1 is a dedicated analog pin

#

The IR is named differently in the board module. I don't remember specifically

timber mango Jan 12, 2018, 1:20 AM

#

From the learn article: There's also a secret capability, you can read the 'raw' analog value from the receiver LED diode to do basic IR proximity sensing. The direct analog value is available from pin A10

idle owl Jan 12, 2018, 1:20 AM

#

Can you link please?

timber mango Jan 12, 2018, 1:21 AM

#

https://learn.adafruit.com/adafruit-circuit-playground-express/guided-tour#infrared-receive-slash-transmit-and-proximity

Adafruit Circuit Playground Express

Make faster and easier than ever with MakeCode, CircuitPython or Arduino!

idle owl Jan 12, 2018, 1:22 AM

#

I wonder if it's specific to Arduino.

#

I don't know, I've never tried that in CircuitPython

tidal kiln Jan 12, 2018, 1:24 AM

#

>>> import board
>>> board.
A0              SPEAKER         A1              A2
A3              A4              SCL             A5
SDA             A6              RX              A7
TX              LIGHT           A8              TEMPERATURE
A9              BUTTON_A        D4              BUTTON_B
D5              SLIDE_SWITCH    D7              NEOPIXEL
D8              D13             REMOTEIN        IR_RX
REMOTEOUT       IR_TX           IR_PROXIMITY    MICROPHONE_CLOCK
MICROPHONE_DATA                 ACCELEROMETER_INTERRUPT
ACCELEROMETER_SDA               ACCELEROMETER_SCL
SPEAKER_ENABLE  SCK             MOSI            MISO
FLASH_CS
>>>

idle owl Jan 12, 2018, 1:24 AM

#

Was just about to paste that

tidal kiln Jan 12, 2018, 1:24 AM

#

i think you're after IR_PROXIMITY

idle owl Jan 12, 2018, 1:24 AM

#

The guide is written about the CPX, the entire guide is not specific to CircuitPython

tidal kiln Jan 12, 2018, 1:24 AM

#

yah, A10 is probably the Arduino def

#

same pin, just accessed differently in CP

timber mango Jan 12, 2018, 1:25 AM

#

How did you get that list?

idle owl Jan 12, 2018, 1:26 AM

#

Connect to the serial console, enter the REPL, type the commands at the beginning of that code block into the REPL.

tidal kiln Jan 12, 2018, 1:26 AM

#

tab completion

idle owl Jan 12, 2018, 1:26 AM

#

dir(board) will give you a similar but not as cleanly lined up list.

tidal kiln Jan 12, 2018, 1:26 AM

#

you can also just do dir()

>>> dir(board)
['A0', 'SPEAKER', 'A1', 'A2', 'A3', 'A4', 'SCL', 'A5', 'SDA', 'A6', 'RX', 'A7', 'TX', 'LIGHT', 'A8', 'TEMPERATURE', 'A9', 'BUTTON_A', 'D4', 'BUTTON_B', 'D5', 'SLIDE_SWITCH', 'D7', 'NEOPIXEL', 'D8', 'D13', 'REMOTEIN', 'IR_RX', 'REMOTEOUT', 'IR_TX', 'IR_PROXIMITY', 'MICROPHONE_CLOCK', 'MICROPHONE_DATA', 'ACCELEROMETER_INTERRUPT', 'ACCELEROMETER_SDA', 'ACCELEROMETER_SCL', 'SPEAKER_ENABLE', 'SCK', 'MOSI', 'MISO', 'FLASH_CS']
>>>

#

ok, you were first that time @idle owl

timber mango Jan 12, 2018, 1:27 AM

#

Ah

manic glacierBOT Jan 12, 2018, 2:03 AM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

Tried loading 3.0 onto Metro M0 Express. No problems executing any of the problematic imports above.

timber mango Jan 12, 2018, 2:05 AM

#

Is there any possible way to call a function asynchronously on CPX?

#

Thanks for all the help earlier btw, I got that part working

manic glacierBOT Jan 12, 2018, 2:22 AM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

very interesting - making the following changes fixes the problems on the metro M4 express.
I can now import adafruit_ssd1306 !!

adafruit_ssd1306.py.dif.txt

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

a bit more investigation:
the syntax:
import adafruit_bus_device.i2c_device as i2c_device
works as well
most of the modules use this syntax or
from adafruit_bus_device.i2c_device import I2CDevice

it looks like only pca9685, sdcard, ht16k33 and ssd1306 use
from adafruit_bus_device import i2c_device (or spi_device)
which causes the problem for CP3.0

cunning crypt Jan 12, 2018, 2:45 AM

#

@timber mango Asynchronously, as in having two separate functions happening at the same time?

timber mango Jan 12, 2018, 2:46 AM

#

Yes

cunning crypt Jan 12, 2018, 2:46 AM

#

Not on Circuit Python. Microcontrollers can't do multi-threading.

timber mango Jan 12, 2018, 2:47 AM

#

Hmm

cunning crypt Jan 12, 2018, 2:47 AM

#

What are you trying to accomplish?

timber mango Jan 12, 2018, 2:49 AM

#

Basically what I'm trying to do is have the NeoPixel example and the IR Christmas ornament examples work together so when I press a ceertain button on the remote it plays the rainbow demo until another button is pressed to change the color or turn the lights off

cunning crypt Jan 12, 2018, 2:49 AM

#

Well, that can be done.

timber mango Jan 12, 2018, 2:50 AM

#

It probably doesn't help that I'm fairly new to CircuitPython

cunning crypt Jan 12, 2018, 2:50 AM

#

Or, more accurately, you can make something like that work. You'd probably have to re-write everything, though.

#

Well, everyone's a newbie at some point.

#

And realistically speaking... you can't be TOO versed in CircuitPython. It's not that old

timber mango Jan 12, 2018, 2:52 AM

#

I've rewritten the rainbow demo with if statements instead of for loops, the main problem is that the IR decoding code stops the entire program until it gets a signal to decode

idle owl Jan 12, 2018, 2:53 AM

#

It's more difficult with the animation because the animation will want to go for a certain amount of time. I tried adding the rainbow animation to that example previously and ran into issues with the looping. Other things came up and I never finished trying to sort it.

cunning crypt Jan 12, 2018, 2:57 AM

#

Yeah, you'd have to check for an incoming signal at pretty much every point.

idle owl Jan 12, 2018, 2:58 AM

#

So for me, either the animation would go for one iteration and then stop, and I could then signal something else, or it would loop and it wouldn't pay attention to the incoming IR signals.

#

If I remember correctly anyway. Been a while.

timber mango Jan 12, 2018, 3:00 AM

#

That's what happened to me too

#

I can signal for the animation repeatedy and it will step through

cunning crypt Jan 12, 2018, 3:03 AM

#

My solution would be to overengineer it. Move the neopixel control to a separate microcontroller. It'd happily run through a loop until a certain pin was pulled high, at which point it'd check I2C, where the main controller would give it instructions.

#

Of course, my solution to everything is to overengineer it

timber mango Jan 12, 2018, 3:04 AM

#

My possible solution is to get a second IR sensor to detect that a signal exists, then trigger the actual decoding part

cunning crypt Jan 12, 2018, 3:05 AM

#

I'm sure that could be done on the CPX without an additional sensor. not entirely sure how, though.

timber mango Jan 12, 2018, 3:07 AM

#

I tried to make it work but if I try to have the pin for the IR sensor be used for both detecting the existence of signals and decoding signals it gives me "pin is busy" errors

#

The error gets set off by just declaring multiple variables that use the pin

idle owl Jan 12, 2018, 3:08 AM

#

The sensor and the receiver are two different things.

#

No I'm reading what you're saying wrong, sorry

#

Scratch that.

timber mango Jan 12, 2018, 3:09 AM

#

I'm accessing the digital demodulated pin (39)

idle owl Jan 12, 2018, 3:09 AM

#

I'm not sure the pin itself should be decoding. That might be part of it. I guess I'm not entirely sure what you've tried though.

timber mango Jan 12, 2018, 3:09 AM

#

But not by directly giving it pin 39, I'm using something like IRREMOTE or something

idle owl Jan 12, 2018, 3:09 AM

#

Right

#

Have you looked at the ir_remote lib itself to see if understanding how the decoding is done will help you with what you're doing?

timber mango Jan 12, 2018, 3:11 AM

#

Not quite yet, I might try that tomorrow

#

So far I've just observed that when you tell it to listen for a signal it doesn't proceed withthe rest of the code until it gets a signal

idle owl Jan 12, 2018, 3:12 AM

#

I think it might be a limitation of the hardware. But I haven't explored IR that much, so I'm guessing.

raven canopy Jan 12, 2018, 3:48 AM

#

silly question: when using blinka to compile the esp8266 firmware using make BOARD=feather_huzzah, will the .bin work on ANY esp8266 or only on the Huzzah? (trying to make sure my documentation is accurate)

solar whale Jan 12, 2018, 3:58 AM

#

@raven canopy I have used it on the Huzzah breakout as well as the Feather Huzzah. BTW I belive feather_huzzah is the default and the only board included so specifying it does not actually do anyhting. You get the same build for just "make"

raven canopy Jan 12, 2018, 4:00 AM

#

@solar whale yeah, i knew that it's the only one listed, so make defaults. just didn't know (haven't peeked behind the curtains on the makey stuff) if there is any adafruit/feather specific stuff going on. thx!

solar whale Jan 12, 2018, 4:02 AM

#

@raven canopy the important thing would be to see if the pinouts of any other board agreed with boards/feather_huzzah/pins.c

raven canopy Jan 12, 2018, 4:05 AM

#

well, since this is going to be a blinka billed SDK...maybe I should just use the Huzzah in the docs. Or let the adafruit folks make the decision. who am i kidding? i'm still going to look... 😄

civic socket Jan 12, 2018, 4:06 AM

#

We are just starting with circuitpython on a Adafruit Feather M0 Adalogger. Where can we see coding examples? I'm a retired engineer, now Astrophysics graduate student, and my friend is a nursing student. I'm teaching him programming and electronics from the ground up using the adaFruit cornucopia. We want to build wearable phsiological monitors, first just monitoring breathing with the stretch sensor, and recording a night's breathing to the microSD, as a sleep apnia detector. Then include heart rate, breathing sound, and whatever else. But just the stretch sensor to start.

raven canopy Jan 12, 2018, 4:09 AM

#

@civic socket here is the amazing Welcome to CircuitPython guide that @idle owl wrote. This will get you the overview..
https://learn.adafruit.com/welcome-to-circuitpython

Welcome to CircuitPython!

New to CircuitPython? This is the place to start.

civic socket Jan 12, 2018, 4:09 AM

#

We did get circuitPython loaded, and we worked halfway through that page.

#

The onboard main.py for the trinket is pretty good, we have two of those also. Is that code applicable?

raven canopy Jan 12, 2018, 4:11 AM

#

Sweet! Congrats! If you goto the product page (this is my usual technique), there will be a lot of learn guides associated with that product. They may not be exactly product specific, but a lot are.

#

@civic socket yes, the main.py should run on either. you just may have to change some pins referenced in your code. they are both non-express boards, so the base firmware is the same.

civic socket Jan 12, 2018, 4:13 AM

#

thanks! will try that

raven canopy Jan 12, 2018, 4:13 AM

#

I had it up, so here is a shortcut: https://www.adafruit.com/product/2796

solar whale Jan 12, 2018, 4:15 AM

#

keep in mind there is no "dotstar" on the M0 Adalogger ...

raven canopy Jan 12, 2018, 4:17 AM

#

that slipped me mind. so the main.py that is "shipped" with the trinket would fail on that, yes?

solar whale Jan 12, 2018, 4:18 AM

#

yes

#

actually I'mnot sure what it would do - might fail "silently".

#

it is not reading back from it so it may not care.

#

there will definately be some pin names taht have to be changed.

#

time for bed - good night all.

raven canopy Jan 12, 2018, 4:36 AM

#

night jerry

stark wolf Jan 12, 2018, 4:53 AM

#

I've got a strange error with trying to initialize a sdcard on a feather HUZZAH with the Adalogger Wing. Once I get to "sdcard = adafruit_sdcard.SDCard(spi, cs)" I get an error saying "function does not take keyword arguments".

#

I've also downloaded the most recent bundle and pulled out adafruit_sdcard.mpy, and adafruit_bus_device

#

I'm trying to get an si7021 temp/rh% sensor to log to the sdcard but can't get the sdcard started.

manic glacierBOT Jan 12, 2018, 12:24 PM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for import adafruit\_ssd1306

Tried recompiling under gcc 6.3.1 since this seems familiar but the problem still occurs:
from adafruit_bus_device import i2c_device
causes it to hang and dismount.

solar whale Jan 12, 2018, 12:43 PM

#

@stark wolf this works for me on an esp8266 with latest CP2.2 and lib files ```import adafruit_sdcard
import busio
import digitalio
import board
import storage

Connect to the card and mount the filesystem.

spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
cs = digitalio.DigitalInOut(board.GPIO2)
sdcard = adafruit_sdcard.SDCard(spi, cs)
vfs = storage.VfsFat(sdcard)
storage.mount(vfs, "/sd")

#

@stark wolf that was saved as sdmount_adafruit.py and then: ```Adafruit CircuitPython 2.2.0-2-g8251abb on 2018-01-12; ESP module with ESP8266

import sdmount_adafruit
import os
os.listdir('sd/')
['.Spotlight-V100', '.fseventsd', 'sdtest.txt', 'test.txt']

#

@stark wolf note - I use GPIO2 as my CS - The default is GPI015 - That should not make a difference, but I had to move it for compatibilty with other projects.

stark wolf Jan 12, 2018, 1:11 PM

#

@solar whale thanks for poking at that. Thought I had to use bitbangio like I did with i2c. I'll try again after work with busio.

solar whale Jan 12, 2018, 1:15 PM

#

@stark wolf it has hardware SPI for the default MISO/MOSI and SCLK pins. And I think there is an issue open regarding differences in the API for bitbang,

stark wolf Jan 12, 2018, 1:21 PM

#

@solar whale I figured as much after reading your post. I need to be more careful to remember which is hardware driven and which is software bit banging in the future. And thanks for the warning about bitbangio's API. Thought they matched.

solar whale Jan 12, 2018, 1:24 PM

#

@stark wolf It may not be relevant, but this issue is open - I have not tried bitbang SPI myself. https://github.com/adafruit/circuitpython/issues/472

GitHub

Improve bitbangio.SPI to have same API as busio.SPI · Issue #472 · adafruit/circuitpython

bitbangio.SPI is missing write_readinto() (bitdirectional SPI) and also doesn't have the optional buffer slicing start and end arguments. Implement these to make it have the same API as busio.SPI.

slender iron Jan 12, 2018, 4:48 PM

#

@timber mango the pulseio.PulseIn code is buffered so you should be able to make a non-blocking decode for IR. it will take time gaps from your animation but you shold be able to do it without waiting

#

Here is a sneak peek of what I've been working on. Its a chart of the heap:

📎 heap.png

prime flower Jan 12, 2018, 4:55 PM

#

woah

tidal kiln Jan 12, 2018, 5:06 PM

#

heap indeed

idle owl Jan 12, 2018, 5:47 PM

#

Could have made a heap of Blinkas.....

sick creek Jan 12, 2018, 5:53 PM

#

blinka would be happy for heaps

idle owl Jan 12, 2018, 6:05 PM

#

@slender iron seriously though, that's amazing.

slender iron Jan 12, 2018, 6:05 PM

#

yeah, I'm digging it

#

I see a way to save space in the PCA9685 driver 😃

idle owl Jan 12, 2018, 6:06 PM

#

Oh nice!

slender iron Jan 12, 2018, 6:06 PM

#

I want to break it down even more and make it easier to generate

idle owl Jan 12, 2018, 6:07 PM

#

That's great 😃

heavy galleon Jan 12, 2018, 6:11 PM

#

what is the correct way to write a simple if statement?

#

if button.value == True:

idle owl Jan 12, 2018, 6:11 PM

#

if button.value: does the same thing.

heavy galleon Jan 12, 2018, 6:11 PM

#

comparison to true should be 'if cond is true

idle owl Jan 12, 2018, 6:12 PM

#

Yep

heavy galleon Jan 12, 2018, 6:12 PM

#

i thought thats what i wrote is button press is true.. but i keep getting that error

#

this formatting is killing me

idle owl Jan 12, 2018, 6:13 PM

#

What error are you getting?

heavy galleon Jan 12, 2018, 6:13 PM

#

if button.value:
print("button pressed")
else:
print("button no pressed")

#

it doesnt like me having an else in there

#

same when i do a while loop i cant have an else statement

idle owl Jan 12, 2018, 6:13 PM

#

The else needs to be at the same level as the if

#

You can have while but it would want the if inside of the loop like so: python while True: if button.value: print("button pressed") else: print("button not pressed")

#

Python is all about indents. That's why it's being fussy about where you have things.

heavy galleon Jan 12, 2018, 6:16 PM

#

it was throwing me off too I can't use: if button.value == True:, but if button.value: works fine

idle owl Jan 12, 2018, 6:16 PM

#

Correct, they both work, the second form is more pythonic is all.

#

I think being explicit only works in some situations. In this situation, it's not needed.

#

I misread what you said on the first pass.

heavy galleon Jan 12, 2018, 6:20 PM

#

thanks that helped I do the stuff and understand it then when I go back again I end up formatting something wrong and gives me a headache. Ill get it eventually

idle owl Jan 12, 2018, 6:20 PM

#

It takes a little getting used to. Python works with less code, but it means understanding what Python is inferring from the code you write.

#

I'm glad it helped!

slender iron Jan 12, 2018, 6:21 PM

#

@heavy galleon what editor are you using to write your code?

heavy galleon Jan 12, 2018, 6:21 PM

#

@slender iron I'm using MU

slender iron Jan 12, 2018, 6:22 PM

#

cool! it should be helpful then. I was gonna suggest making sure you are using a monospace font. that way everything should line up well

idle owl Jan 12, 2018, 6:24 PM

#

I may have Sparky'd my joy feathering with literal sparks... I static shocked it a few days ago and now it'll disconnect every so often. Just ordered another one to see if it's me or the code.

#

It returns the same traceback when it drops though, so it might not be the hardware.

tawny creek Jan 12, 2018, 6:31 PM

#

@idle owl double check your connections~

idle owl Jan 12, 2018, 6:33 PM

#

It's attached to a feather doubler that worked for a couple of months with another wing. And it wasn't until after I zapped it that it started doing the drop routine. Soldering all seems solid.

tawny creek Jan 12, 2018, 6:35 PM

#

I was 'upgrading' a trinket m0 in a project to a feather m0 express last night and the program would upload but no serial, no response but the led status lights.. solder points were good too - then i remembered a quirk with the i2c battery monitor im using (its SCL/SDA lines were pulled up directly from the battery), plugged in the battery and the thing started working \o/

idle owl Jan 12, 2018, 6:35 PM

#

huh.

tawny creek Jan 12, 2018, 6:35 PM

#

try a different microcontroller ~

idle owl Jan 12, 2018, 6:36 PM

#

Will do.

#

Alright. Now we wait.

upbeat plover Jan 12, 2018, 7:02 PM

#

how do you use the mic on CPX? I tried this. when i play it back it doesnt seem to work, the only thing it seems to record are bangs and taps but voice sounds like ticking

b = array.array("H")

def getsound():
    for i in range(200):
        b.append(0)
    with audiobusio.PDMIn(board.MICROPHONE_CLOCK, board.MICROPHONE_DATA, frequency=16000, bit_depth=16) as mic:
        mic.record(b, len(b))
    print('Sounds Recorded')
    print(b)

slender iron Jan 12, 2018, 7:15 PM

#

@upbeat plover make sure you are using 2.2.0 there improvements to the audio stuff in it

upbeat plover Jan 12, 2018, 7:15 PM

#

im currently using that, do i need some kind of filter to get it to work?

#

is there an example somewhere?

slender iron Jan 12, 2018, 7:16 PM

#

there is a sinc filter internally

#

@idle owl do you know where the volume meter demo is?

idle owl Jan 12, 2018, 7:17 PM

#

CPX main guide under CircuitPython Playground. Give me a second, I can grab it

#

https://learn.adafruit.com/adafruit-circuit-playground-express/playground-sound-meter

Adafruit Circuit Playground Express

Make faster and easier than ever with MakeCode, CircuitPython or Arduino!

upbeat plover Jan 12, 2018, 7:18 PM

#

thank you @slender iron and @idle owl

slender iron Jan 12, 2018, 7:19 PM

#

no problem!

idle owl Jan 12, 2018, 7:20 PM

#

For sure!

prime flower Jan 12, 2018, 9:25 PM

#

who in this channel has been building their own boards with circuit python?

#

(I have a few questions - designing a badge for BSidesBoston this year and I wanna do one with circuit python)

tidal kiln Jan 12, 2018, 9:40 PM

#

"with" or "for" CP?

prime flower Jan 12, 2018, 9:44 PM

#

I forgot who, but someone was doing blinka-style boards

tidal kiln Jan 12, 2018, 9:45 PM

#

that was @stuck elbow

#

and still is

#

this? https://hackaday.io/project/27579-blinka

Blinka

A minimal CircuitPython board.

prime flower Jan 12, 2018, 9:47 PM

#

yes! that's it thanks

keen jungle Jan 12, 2018, 9:59 PM

#

hey everyone, happy friday 😃 !

#

I'm just getting started with circuitpython and i have a couple questions

#

first, where does this REPL come from that people are talking about? it comes with MU?

#

looks like a great way to debug things ^^

prime flower Jan 12, 2018, 10:01 PM

#

Yeah! download Mu and click this

#

📎 Mu_1_0_0_beta_13_-_code_py___and__circuitpython_and_metrox-template_indd___150___GPU_Preview_.png

keen jungle Jan 12, 2018, 10:02 PM

#

ahhh ok, i will try this out

#

i've been using pycharmm but it doesn't really know what to make of the gemma

#

thanks 😃

#

my other question is about adjusting the brightness of the neopixels. I'd like to find a way to do this based on user input (ie pressing a capacitive button) instead of plugging in a computer and modifying the code. Is there a way to change the brightness setting after the strip is initialized?

prime flower Jan 12, 2018, 10:07 PM

#

sure - you'd just do something like an if statement to check for the button value to change (false -> true for a debounced pushbutton)

#

and then adjust the brightness

keen jungle Jan 12, 2018, 10:07 PM

#

oh, awesome

prime flower Jan 12, 2018, 10:07 PM

#

https://circuitpython.readthedocs.io/projects/neopixel/en/latest/api.html

keen jungle Jan 12, 2018, 10:10 PM

#

so it'll be like pixels[0].brightness(.5)?

#

and i can do it on a per pixel basis?

#

or it looks like something like that should work

#

i don't have my board with me actually but i will try when i get home, thanks so much 😃

prime flower Jan 12, 2018, 10:16 PM

#

yea, np. best part about the repl is "instant gratification debugging"

silver tapir Jan 12, 2018, 10:48 PM

#

With a trinket m0 on version 2.2.0 I'm running a loop to read from a DHT11, sleeping 3.0s between reads. I'm only printing the values in the repl.

#

If I leave the code running for less than 10min, I eventually get on the repl

#

Traceback (most recent call last):
File "<stdin>", line 3, in <module>
File "adafruit_dht.py", line 190, in temperature
File "adafruit_dht.py", line 172, in measure
RuntimeError: Checksum did not validate. Try again.

#

Any ideas?

manic glacierBOT Jan 12, 2018, 10:55 PM

#

chedadsp

[adafruit/circuitpython] New star added

tidal kiln Jan 12, 2018, 11:09 PM

#

could be noise in the signal, does it occur after a random period of time?

manic glacierBOT Jan 12, 2018, 11:13 PM

#

Apotessar

[adafruit/circuitpython] Issue opened: #523 Add Driver for the Adafruit TSL2591 High Dynamic Range Digital Light Sensor

Hi

It would be cool if circuitpython would support the Adafruit TSL2591 High Dynamic Range Digital Light Sensor right out of the box (or within the bundle). Seems legit to me since this is the most capable light sensor in the Adafruit portfolio, and the only one with is able to handle the range needed for modern photography (as support).
Actually I will work on my own driver, witch i'am willing to share when it is done, but first I need to learn more about i2c communication and python in ...

silver tapir Jan 12, 2018, 11:13 PM

#

@tidal kiln It has a very short cable, and is away from other sources of RF other than the laptop I'm using to view the repl.

tidal kiln Jan 12, 2018, 11:14 PM

#

but does it occur randomly?

silver tapir Jan 12, 2018, 11:14 PM

#

I'm adding a variable to count the cycles right now.

timber mango Jan 12, 2018, 11:21 PM

#

@silver tapir DHT's are kinda...flakey

#

just retest

silver tapir Jan 12, 2018, 11:21 PM

#

It just died at 12 cycles (with time.sleep 2.0), and it just did it again for a second time.

#

Now on cycle 5.

timber mango Jan 12, 2018, 11:22 PM

#

https://learn.adafruit.com/adafruit-gemma-m0/circuitpython-dht-sensor

Adafruit Gemma M0

The Gemma M0 will super-charge your wearables! Small, light, and it's easy to use, so you can do more.

sick creek Jan 12, 2018, 11:23 PM

#

what are more stable than DHT's?

silver tapir Jan 12, 2018, 11:23 PM

#

@timber mango Oh great, I'll try with that code, thanks a million.

#

@sick creek This is a fresh guide, and that is an excellent sensor, I use it in my brewery all the time.

#

https://learn.adafruit.com/using-ds18b20-temperature-sensor-with-circuitpython

Using DS18B20 Temperature Sensor with CircuitPython

How to connect and use a DS18B20 one-wire temperature sensor with CircuitPython!

#

Now, the sousvidouino code is just asking for a CP port 😃

timber mango Jan 12, 2018, 11:29 PM

#

any of our i2c breakouts too

#

MCP9808, SHT31, Si7021, BMx280

#

@idle owl ok im back

idle owl Jan 12, 2018, 11:38 PM

#

@timber mango hi!

timber mango Jan 12, 2018, 11:38 PM

#

i can look at metro guide now

idle owl Jan 12, 2018, 11:38 PM

#

Ok I was just about to ping you about it. Nice timing

#

Feather and CPX are done as well. So once Metro is settled, that's all of them updated.

timber mango Jan 12, 2018, 11:40 PM

#

ok i made https://learn.adafruit.com/admin/guides/1636/editor/11334 live

idle owl Jan 12, 2018, 11:40 PM

#

Ok I'll move the pages around and take the other one down

timber mango Jan 12, 2018, 11:41 PM

#

yah https://learn.adafruit.com/adafruit-metro-m0-express-designed-for-circuitpython/circuitpython-setup can be de-mirrored

Adafruit Metro M0 Express - Designed for CircuitPython

CircuitPython, Arduino IDE or even MakeCode with this Metro M0

idle owl Jan 12, 2018, 11:41 PM

#

yah!

timber mango Jan 12, 2018, 11:41 PM

#

close to wrappin' up!

idle owl Jan 12, 2018, 11:41 PM

#

I'm going to delete it from Feather too now. I only had it left in there because it was mirrored

timber mango Jan 12, 2018, 11:42 PM

#

do you want to point people to https://learn.adafruit.com/welcome-to-circuitpython/installing-circuitpython at the bottom of the quickstart?

Welcome to CircuitPython!

New to CircuitPython? This is the place to start.

#

also mirror "https://learn.adafruit.com/welcome-to-circuitpython/what-is-circuitpython"?

#

ill let you do yer magic

idle owl Jan 12, 2018, 11:43 PM

#

Hmm. Could mirror installing. Is the quickstart enough?

timber mango Jan 12, 2018, 11:44 PM

#

i mean, i think its worth adding a note at the bottom "For more detailed info..."

idle owl Jan 12, 2018, 11:44 PM

#

that sounds like a good way to do it

timber mango Jan 12, 2018, 11:45 PM

#

i havent seen anyone struggle with install

#

(shrug) 😃

idle owl Jan 12, 2018, 11:45 PM

#

I couldn't think of how to make it not seem weird, but your way makes perfect sense

#

Ok. Updated. Last thing is, for CPX, I'm thinking rename "CircuitPython Quick Start" to "CircuitPython" to match the others, delete the current "CircuitPython" page, and mirror in "What is CircuitPython?".

timber mango Jan 13, 2018, 12:01 AM

#

yah

#

go ahead

idle owl Jan 13, 2018, 12:02 AM

#

ok keen

#

Done! We'll update the top of the install page once it starts shipping with CP.

idle owl Jan 13, 2018, 12:52 AM

#

Just tested the Saleae for the first time on this machine, wow is it fast.

umbral dagger Jan 13, 2018, 2:01 AM

#

FYI I'm working on a couple new pages for my dotstar wing + CP guide: "LED sand" and a simple game.

tidal kiln Jan 13, 2018, 2:03 AM

#

neat. how's the game work?

umbral dagger Jan 13, 2018, 2:07 AM

#

Just a simple gauntlet game

#

If you remember racing games on the Atari2600... it's sort of like that.

tidal kiln Jan 13, 2018, 2:09 AM

#

yes. i do.

pastel panther Jan 13, 2018, 2:48 AM

#

👋

#

hiya folks

lost moss Jan 13, 2018, 2:54 AM

#

Hello !

manic glacierBOT Jan 13, 2018, 6:05 AM

#

sommersoft

[adafruit/circuitpython] New comment on issue #462: Add manner for grabbing unique Board ID/Serial Number

ESP8266 uid is now functioning the same as SAMD. machine.unique_id is still available. 2/3rds of the way there. nRF showed up a couple days ago, so that's the next backend to learn! 🔢

#4 ets_task(40100130, 3, 3fff8380, 4)
boot.py output:

Press any key to enter the REPL. Use CTRL-D to soft reset.

Adafruit CircuitPython 3.0.0-alpha.1-49-g068479d-dirty on 2018-01-13; ESP module with ESP8266
>>> import machine, microcontroller
>>> print(machine.unique_id())
b'\x02\xd8\xc6\x...

manic glacierBOT Jan 13, 2018, 12:12 PM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #521: on metro\_m4\_express \- CP3\.0 FS error for specific import syntax

I have narrowed town the build that introduced this problem to:
adafruit-circuitpython-metro_m4_express-20180105-5cb361c.uf2
from adafruit_bus_device import i2c_device works on builds prior to this on and fails on builds since.

manic glacierBOT Jan 13, 2018, 6:55 PM

#

jerryneedell

[adafruit/circuitpython] Issue opened: #524 NRF52 build fails if MICROPY\_PY\_BLE\_NUS enabled

enabling MICROPY_PY_BLE_NUS in bluetooth_conf.h results in the following error.
It builds fine if this is left disabled.

`$ make BOARD=feather52 SD=s132
Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.
Generating build-feather52-s132/genhdr/mpversion.h
GEN build-feather52-s132/genhdr/qstr.i.last
QSTR updated
GEN build-feather52-s132/genhdr/qstrdefs.generated.h
FREEZE freeze
LINK build-feather52-s132/firmware.elf
build-feather5...

manic glacierBOT Jan 13, 2018, 8:06 PM

#

jerryneedell

[adafruit/circuitpython] New comment on issue #524: NRF52 build fails if MICROPY\_PY\_BLE\_NUS enabled

I tried adding mp_hal_stdin_any to nrf/drivers/bluetooth/ble_uart.c.
The build compiled with this added, but the BLE REPL did not work.

I added this function to ble_uart.c:

bool mp_hal_stdin_any(void) {
return (!isBufferEmpty(mp_rx_ring_buffer));
}

I attempted to base this on what was in nrf/mphalport.c but is not compiled when MICROPY_PY_BLE_NUS is enabled.

regal ravine Jan 13, 2018, 8:30 PM

#

Can't get "pip install circuitpython-build-tools" to work... Any help?

solar whale Jan 13, 2018, 8:37 PM

#

@regal ravine what OS are you using and what problem are you having?

#

@regal ravine on my linux system it worked for me if did the installation in the Adafruit_CircuitPython_Bundle sudirectory created when I cloned the repository.. python3 -m venv .env source .env/bin/activate pip install circuitpython-build-tools

regal ravine Jan 13, 2018, 9:00 PM

#

Okay thanks figured it out... I accidentely used python instead of python3 so it didn't find the "circuitpython-build-tools" package... Now it works!

manic glacierBOT Jan 13, 2018, 10:15 PM

#

microbuilder

[adafruit/circuitpython] New comment on issue #524: NRF52 build fails if MICROPY\_PY\_BLE\_NUS enabled

The REPL/UART code changed with the migration to CircuitPython, which handles the UART abstraction differently. Migrating BLE UART support is at the top of my ToDo list now that the base nRF52 stuff is working ... we've been ignoring the SD until now. The reason the flag fails is because it relies on the MicroPython REPL abstraction layer which we don't use anymore.

#

jerryneedell

[adafruit/circuitpython] New comment on issue #524: NRF52 build fails if MICROPY\_PY\_BLE\_NUS enabled

Thanks for the update and clarification. I'll look forward to trying it out. Thank you for all the work you have put into this. No rush on my part. I'll (try to) be patient ;-)
I have been playing with some of the ubluepy examples and they seem to work so far. I had tried the NUS in the past and could connect to it, but the apps I was using could not properly send the EOL so I could not get very far. I could see the prompt, but never get it to accept any input since it never saw proper ...

manic glacierBOT Jan 13, 2018, 10:40 PM

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microbuilder

[adafruit/circuitpython] New comment on issue #524: NRF52 build fails if MICROPY\_PY\_BLE\_NUS enabled

I'll get this fixed this week and a PR sent out. I had the same EOL problem, and the OS X and iOS Bluefruit LE Connect apps now have an option to change the EOL character(s) because of that, which should help. The Android version is updated internally, but I need to schedule in some time with the app dev to do some final tests before pushing it out, but I'll try to get that wrapped up soon as well.

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microbuilder

[adafruit/circuitpython] New comment on issue #524: NRF52 build fails if MICROPY\_PY\_BLE\_NUS enabled

You can see the release notes here:

carmine hornet Jan 13, 2018, 10:51 PM

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I can't get this code to work

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I'm trying to control a motor when with a relay

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If I connect it to 3.3v it works, but not with my code

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my code is: from digitalio import DigitalInOut, Direction, Pull
import board
motor = DigitalInOut(board.A1)
motor.direction = Direction.OUTPUT
while True:
motor.value = True

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Actually, I think this circuit playground is acting weird

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I tried it with other things and it didn't work

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nevermind, I tried the same code on a trinket m0 (with a different pin) and it didn't work

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Can someone please help?

solar whale Jan 14, 2018, 1:01 AM

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@carmine hornet I may be mistaken, but I don’t think the output pins can provide enough current to drive a motor. You will need something like https://www.adafruit.com/product/2927 or some additional circuitry to be able to drive the motor.

DC Motor + Stepper FeatherWing Add-on For All Feather Boards

A Feather board without ambition is a Feather board without FeatherWings! This is the DC Motor + Stepper FeatherWing which will let you use 2 x bi-polar stepper motors or 4 x ...

carmine hornet Jan 14, 2018, 1:04 AM

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They are controlling a relay

solar whale Jan 14, 2018, 1:05 AM

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Oh. Sorry.

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I missed that part 😕

umbral dagger Jan 14, 2018, 1:47 AM

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@carmine hornet @solar whale Is the relay coil connected directly to the output pin? Via an optocoupler? ...

carmine hornet Jan 14, 2018, 2:09 AM

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D4 on the trinket is connected to the relay coil

umbral dagger Jan 14, 2018, 2:17 AM

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The output pin might not be able to drive the relay coil directly. Have a look at https://www.allaboutcircuits.com/projects/use-relays-to-control-high-voltage-circuitswwith-an-arduino/

Use Relays to Control High-Voltage Circuits with an Arduino

To control high-voltage or high-power circuits with an Arduino, you have to isolate them from the Arduino with a relay. Here's how!

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Verify about driving directly, I have a couple different types of relays; one type has a transister driver, and the other has an optocoupler.

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MCU output pins can't supply very much current, so you often need a driver of some sort to do much more than light an LED.

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Hey all! I got the "digital sand" demo running acceptably on a featherM0/CP/dotstar-wing. Will aim to demo it on Show&Tell this week and add it to my dotstar/CP guide.

opal elk Jan 14, 2018, 2:59 AM

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how can I see what an OSError means? I know there's an issue on github for reporting it better but I'd settle for a less-better example. I can't seem to find it anywhere in the docs, either

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in particular, error 5

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it's probably MemoryError, in which case I don't really know how to fix it

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(by not importing sys when I didn't need it, it turns out)

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(orrrr not)

raven canopy Jan 14, 2018, 3:07 AM

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@opal elk I had to trace it down...but ask, and ye shall receive!
https://github.com/adafruit/circuitpython/blob/master/py/mperrno.h

opal elk Jan 14, 2018, 3:07 AM

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thank you! I was just starting to look through there

raven canopy Jan 14, 2018, 3:08 AM

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yw

opal elk Jan 14, 2018, 3:08 AM

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I/O error? wha...

raven canopy Jan 14, 2018, 3:08 AM

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yeah, not exactly verbose.

manic glacierBOT Jan 14, 2018, 4:06 AM

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brady

[adafruit/circuitpython] New star added

opal elk Jan 14, 2018, 4:21 AM

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possibly the least readable code I've ever written... (mostly the second line)

    oled.text(" {:0<3}  {:0<3}  {:0<3}".format(*[abs(int((int(int(v)-v*10)-(int(v)-v*10))*1000)) for v in (x, y, z)]), 0, 20)

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that takes a three tuple of accelerometer data, ie (-0.1234567, 0.3141592, 0.9876543) and formats it over two lines with three characters per line, including the negative sign if appropriate

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waaaait no it doesn't, not always

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"{:.1f}".format(0.987) is '1.0' 😐

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(that makes total sense, it just means I can't use it for my dirty deeds)

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and also str(abs(v))[3:6] will give me what I need for line 2

umbral dagger Jan 14, 2018, 4:49 AM

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@opal elk You're playing with accelerometers too?

opal elk Jan 14, 2018, 4:49 AM

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yep! I have a CPX strapped to the back of a pinewood derby car

umbral dagger Jan 14, 2018, 4:49 AM

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cool

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I made an accell/mag featherwing, and used it (just the accel) to do a compact digital sand demo in CP

raven canopy Jan 14, 2018, 4:55 AM

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i'm playing with vagrant/VM and trying to build CP on the Feather nRF. i'm defnitely losing...

solar whale Jan 14, 2018, 7:43 AM

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@sommersoft#0222 I have been able to get it to work following the instructions in https://github.com/adafruit/circuitpython/tree/master/ports/nrf/boards/feather52. Where are you having problems?

silent torrent Jan 14, 2018, 9:03 AM

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Hi Guys. I want to learn how to use the program language for Arduino to use on Neopixels. I understand that I can copy some of the examples and modify it but I'd like to learn what it all means so I can create and modify understanding what I'm doing. Can you please point me in the right direction?

timber mango Jan 14, 2018, 9:45 AM

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@raven canopy https://learn.adafruit.com/micropython-for-samd21/build-firmware

raven canopy Jan 14, 2018, 2:24 PM

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@solar whale haven't been able to get the VM to use the USBtoUART driver for the board...so I'm stuck at the single-bank DFU bootloader. and that is the guide I've been using.

solar whale Jan 14, 2018, 2:27 PM

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@raven canopy ah - I have not tried using the VM to upload - I always copy the files to the host then upload, but they may not work for the nrf52 since you need the nrftools.... however under linux, the port normall would be /dev/ttyUSB0 not USBtoUART as in the guide - that is a MACOS name.

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try just chaning to SERIAL=/dev/ttyUSB0

raven canopy Jan 14, 2018, 2:28 PM

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i tried with USB0...failed b/c "no serial connection found" or something to that effect

solar whale Jan 14, 2018, 2:29 PM

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the is a way to route the USB conncections int the VM - Tony Dicola discusses it in one of his videos ...

raven canopy Jan 14, 2018, 2:30 PM

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yeah, that's how i got the VM to see it in the first place (not from his video though). and after burning the DFU with arduino in a desperate attempt...VM won't recognize it anymore. hehe. the joy!

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i'll have to see if i can find the tonyd vid...

solar whale Jan 14, 2018, 2:31 PM

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so it does compile at least - thats a big step!

raven canopy Jan 14, 2018, 2:32 PM

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sidenote: the nRF board package takes FOREVER to install.. ⏲

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watching tony's nRF video now. already, he hits me with knowledge. I totally glossed over the fact that it uses the M4 vs the M0.

solar whale Jan 14, 2018, 2:46 PM

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@raven canopy I suppose you could copy the necesary files to your host system and execute the uplaodfrom there - after installing the nrfutils loaclly -- the commands are in https://github.com/adafruit/circuitpython/blob/master/ports/nrf/boards/feather52/mpconfigboard.mk

GitHub

adafruit/circuitpython

circuitpython - CircuitPython - a Python implementation for teaching coding with microcontrollers

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It is M4 , but not an ATmel M4 ( it is Nordic Semi ) that also got me confused!

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what is the link to his vieo?

raven canopy Jan 14, 2018, 2:47 PM

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i guess that is an important distinction. but still has 512k flash + extra ram.

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https://www.youtube.com/watch?v=50ImTDRREnU

solar whale Jan 14, 2018, 2:52 PM

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It means that much of the device support is using differnt code than on the atmel chips. (not based on asf4)

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taht was the vidio I was thinking of. - I think he describes how to do it. trying to find where. Nice video

raven canopy Jan 14, 2018, 2:55 PM

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i'm at 15:xx. he's early in the vagrant setup

solar whale Jan 14, 2018, 2:57 PM

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its around 31: - he talks about compiler errors around 20 but they don't occur any more

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also the desripttion he uses for nrfutil install is old - it is simpler now and I think you already have it done from the guide.

raven canopy Jan 14, 2018, 3:02 PM

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yeah, that was a tricky one. i started reading/planning using the info on the /ports/nrf/readme. I got confused quickly... then, i stumbled on the /ports/nrf/boards/feather52/readme. much easier to follow. 😄

solar whale Jan 14, 2018, 3:03 PM

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the magic is at 36:30 or so

raven canopy Jan 14, 2018, 3:04 PM

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another sidenote: tony is a nano-ite. i like him even more! hahaha

manic glacierBOT Jan 14, 2018, 3:07 PM

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Camerutttt

[adafruit/circuitpython] Issue opened: #525 Circuit Python with Sublime Text

Anyone knows how to use Sublime Text with Circuit Python? I have already installed Deviot but do not know how to continue from there.

solar whale Jan 14, 2018, 3:15 PM

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@raven canopy just a heads up: After he gets it loaded, he starts playing with the ubluepy examples. For the default build in the feather52, the BLE support is not enabled so they won't work. I have enabled it ( just uncomment in the mpconfigport.h) and run these examples on the feather52. Also, the new ampy does work, with the -delay parameter set to 1.5

raven canopy Jan 14, 2018, 3:16 PM

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hmm. that's one thing i may have done wrong. i think i ran the nrfutil in a lower tree...hmm.

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well, it runs fine from ~, so should be fine.

solar whale Jan 14, 2018, 3:17 PM

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I don't think it mattrs since it just installs it.

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the feather52 port on cicruitpython has come a long way since this video!

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I like Tony's predicitions for the future of the nrf52 -- coming true!

raven canopy Jan 14, 2018, 3:34 PM

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@solar whale is it still required to do the single bank step? that's where i'm failing

solar whale Jan 14, 2018, 3:35 PM

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ye - do the boot-flash first then the dfu-gen dfu-flash - is it just failing to connect?

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did oyu get it intp DFU mode - ground the DFU pin then RESET

raven canopy Jan 14, 2018, 3:35 PM

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yeah

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nrfutil dfu serial --package boards/feather52/bootloader/feather52_bootloader_2.0.1_s132_single.zip -p /dev/ttyUSB0 -b 115200
Upgrading target on /dev/ttyUSB0 with DFU package /home/vagrant/source/sommersoft/circuitpython/ports/nrf/boards/feather52/bootloader/feather52_bootloader_2.0.1_s132_single.zip. Flow control is disabled.

Failed to upgrade target. Error is: Serial port could not be opened on /dev/ttyUSB0. Reason:

Possible causes:
- Bootloader, SoftDevice or Application on target does not match the requirements in the DFU package.
- Baud rate must be 115200, Flow control must be off.
- Target is not in DFU mode. Ground DFU pin and RESET and release both to enter DFU mode.

solar whale Jan 14, 2018, 3:36 PM

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so - just to be sure - you ground DFU pin then RESET - remove ground and it in blinking the red LED... corrdct?

raven canopy Jan 14, 2018, 3:36 PM

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correct

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and the USB bridge is loaded

vagrant@vagrant-ubuntu-trusty-64:~/source/sommersoft/circuitpython/ports/nrf$ lsusb
Bus 001 Device 002: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x UART Bridge / myAVR mySmartUSB light

solar whale Jan 14, 2018, 3:39 PM

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try disconnecting USB port and reconnecting - sometimes it gets aonfused -- is you do ls /dev/ttyUSB* do you see USB0?

raven canopy Jan 14, 2018, 3:39 PM

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yep

solar whale Jan 14, 2018, 3:41 PM

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what are permissions on /dev/ttyUSB0 ? Do you have to be a member of group dialout to acces it? Are you?

raven canopy Jan 14, 2018, 3:42 PM

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now I have to remember long forgotten linux cmds... 😄

solar whale Jan 14, 2018, 3:43 PM

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ls -la /dev/ttyUSB0

raven canopy Jan 14, 2018, 3:43 PM

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that one i remembered.
crw-rw---- 1 root dialout 188, 0 Jan 14 15:28 /dev/ttyUSB0

solar whale Jan 14, 2018, 3:44 PM

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grep dialout /etc/group

raven canopy Jan 14, 2018, 3:45 PM

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dialout: x :20:ubuntu

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lol

solar whale Jan 14, 2018, 3:45 PM

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if not in it : sudo adduser <username> dialout

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not sure if thsi will help, but worth a try

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I think you are user vagrant

raven canopy Jan 14, 2018, 3:47 PM

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yeah. giving it a run now

solar whale Jan 14, 2018, 3:47 PM

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but since tony did not run ito it, I'm not optimistic...

raven canopy Jan 14, 2018, 3:48 PM

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no go. ☹

solar whale Jan 14, 2018, 3:48 PM

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boo..

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does ls /dev/ttyUSB* show only USB0?

raven canopy Jan 14, 2018, 3:50 PM

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yeah

solar whale Jan 14, 2018, 3:52 PM

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I have "gotten" stuck at thsi point - disconnecting the USB usually helped.. You are so close.....

raven canopy Jan 14, 2018, 3:53 PM

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when you connect, do you gnd -> dfu? or do you just rst after connecting?

solar whale Jan 14, 2018, 3:54 PM

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I just connect ground ->DFU press reset then remove the jumper -- sometimes I power down the feather (disconnect) connect the jumper power up then remove the jumper.

raven canopy Jan 14, 2018, 4:05 PM

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well, there is a win32 binary for nrfutil...maybe i'll try that route.

solar whale Jan 14, 2018, 4:06 PM

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worth a try -- but it has to be the same version to support dfu, I think -- Do you have python on the windows system - can you just do the install steps there? AS in the feather52 guide?

raven canopy Jan 14, 2018, 4:07 PM

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yeah, i have 2 & 3, and have figured out run pip/etc through powershell/cmd. i haven't program hopped like this in a long time. ;D

solar whale Jan 14, 2018, 4:09 PM

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good luck --- I'll be off for a bit. Hopefully you'll crack this soon. BTW if you get boot-flash to work, I find taht is stays in DFU mode so I dont have to reset it to load the dfu-flash.

raven canopy Jan 14, 2018, 4:09 PM

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thanks. we'll see. i have to get moving myself, so this may be on pause until tonight.

manic glacierBOT Jan 14, 2018, 6:42 PM

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tannewt

[adafruit/circuitpython] New comment on issue #525: Circuit Python with Sublime Text

Please ask on the support forum: https://forums.adafruit.com/viewforum.php?f=60

GitHub issues should be used for bugs and feature requests.

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tannewt

[adafruit/circuitpython] Issue closed: #525 Circuit Python with Sublime Text

manic glacierBOT Jan 14, 2018, 7:06 PM

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tannewt

[adafruit/circuitpython] New comment on pull request #518: Make chosen features consistent across all boards and ports atmel\-samd, esp8266, and nrf\.

Do the workarounds for CPython compat still work in CPython? I don't want us teaching bad habits that break when moving to CPython.

manic glacierBOT Jan 14, 2018, 9:41 PM

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tandpfun

[adafruit/circuitpython] New comment on issue #525: Circuit Python with Sublime Text

Camerutttt, It is possible, just write your python code, and when you save it, call it 'main.py' or whatever filename you like.

blazing trail Jan 14, 2018, 9:42 PM

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/\ me

manic glacierBOT Jan 14, 2018, 9:44 PM

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tandpfun

[adafruit/circuitpython] New comment on issue #525: Circuit Python with Sublime Text

sorry, scott. :)
<i class="fa fa-check-square" aria-hidden="true"></i>

carmine hornet Jan 14, 2018, 9:56 PM

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I found this summer camp at brown college: https://precollege.brown.edu/catalog/course.php?course_code=CECS0604

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It's a 2 week course on micropython

blazing trail Jan 14, 2018, 10:07 PM

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wow 😃

raven canopy Jan 14, 2018, 10:40 PM

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@solar whale finally got it to run the single bank dfu. i edited the usb passthrough name in virtualbox; the name had the version at the end [100] which i think was tripping up ubuntu.

carmine hornet Jan 14, 2018, 10:51 PM

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Is there a way to trigger cap touch with an object that has copper tape on it and you aren't touching the copper tape?

stuck elbow Jan 14, 2018, 10:52 PM

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sure, as long as it has enough capacitance itself

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you could add a cap to it

carmine hornet Jan 14, 2018, 10:54 PM

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I tried putting conductive tape on the end of a syringe for a project but it won't work

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📎 WIN_20180114_17_55_20_Pro.jpg

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What do you mean by a cap @stuck elbow

stuck elbow Jan 14, 2018, 10:56 PM

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a capacitor

carmine hornet Jan 14, 2018, 10:56 PM

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oh

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I'll see

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How would I do that?

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Directly on it?

stuck elbow Jan 14, 2018, 10:57 PM

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actually, a capacitor alone could be not enough, the other end would probably need to be grounded somehow

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but what are you trying to actually do?

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maybe there is a simpler way

carmine hornet Jan 14, 2018, 10:58 PM

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Sense when the syringe has moved to a specific point

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The syringe is powered by hydraulics

stuck elbow Jan 14, 2018, 10:59 PM

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have you considered using an endstop switch?

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that's the usual way this is done

carmine hornet Jan 14, 2018, 10:59 PM

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What's that?

stuck elbow Jan 14, 2018, 10:59 PM

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a mechanical switch

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with low friction

carmine hornet Jan 14, 2018, 10:59 PM

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I need the syringe to be able to move past the point though

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Would it let me do that?

stuck elbow Jan 14, 2018, 11:00 PM

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well, some smart mechanical design would be required for that

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another way is to use a led and a photosensitive element

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and a hole in that thing that moves

carmine hornet Jan 14, 2018, 11:02 PM

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I think an endstop switch would be best

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It think I could place it in the right stop so that it only trigger at that spot

stuck elbow Jan 14, 2018, 11:02 PM

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a hall effect sensor and a magnet would work too

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or even a simple reed switch and a magnet

carmine hornet Jan 14, 2018, 11:03 PM

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I'll see what works best for me

stark wolf Jan 15, 2018, 1:24 AM

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@carmine hornet IR break beam set, would work and are really cheap.

raven canopy Jan 15, 2018, 1:32 AM

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@slender iron working on nRF uid right now. however, seems that struct hasn't made it into the build yet. so, the ability to unpack the bytearray won't be there. i can add a note to the spinx-doc that nRF isn't unpackable yet...

slender iron Jan 15, 2018, 1:48 AM

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@raven canopy thats fine. PLease file an issue for struct too

raven canopy Jan 15, 2018, 1:50 AM

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can do, but its not just struct. most of the shared modules are commented out of the Makefile:

*  bitbangio/__init__.c \
    bitbangio/I2C.c \
    bitbangio/OneWire.c \
    bitbangio/SPI.c \
    busio/OneWire.c \
    gamepad/__init__.c \
    gamepad/GamePad.c \
    struct/__init__.c \
    uheap/__init__.c \
    ustack/__init__.c

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i'm going to move it out of the commented section and see if i can get it to compile. might be better to put in an issue for all of the (desired) shared modules? @slender iron

slender iron Jan 15, 2018, 2:04 AM

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ok, sounds good

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its just early days for that port

raven canopy Jan 15, 2018, 2:05 AM

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yeah. that's why i wasn't stressing it too much and just going to add the note..

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it built just fine with struct. now to see if it actually works.

slender iron Jan 15, 2018, 2:06 AM

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cool

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I wouldn't be surprised if it did

raven canopy Jan 15, 2018, 2:07 AM

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nope. still get no module named

manic glacierBOT Jan 15, 2018, 2:15 AM

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sommersoft

[adafruit/circuitpython] Issue opened: #526 nRF Port: Get Remaining Shared Modules Working

The shared modules below are not currently included in the nRF port build (taken from Makefile). Obviously, some will be easier than others so I put them in as a task list.

[ ] bitbangio/init.c
[ ] bitbangio/I2C.c
[ ] bitbangio/OneWire.c
[ ] bitbangio/SPI.c
[ ] busio/OneWire.c
[ ] gamepad/init.c
[ ] gamepad/GamePad.c
[ ] struct/init.c
[ ] uheap/init.c
[ ] ustack/init.c

slender iron Jan 15, 2018, 2:15 AM

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@raven canopy looks excellent thanks!

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<@&356864093652516868> Our meeting will not be tomorrow due to the US Holiday Martin Luther King, Jr Day. We'll do it on Tuesday instead at the normal time 11am Pacific / 2pm Eastern here on Discord.

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manic glacierBOT Jan 15, 2018, 2:20 AM

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sommersoft

[adafruit/circuitpython] New comment on issue #462: Add manner for grabbing unique Board ID/Serial Number

nRF done! PR imminent...

manic glacierBOT Jan 15, 2018, 2:49 AM

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sommersoft

[adafruit/circuitpython] Pull request opened: #527 Added Unique ID Functions/Updated Support Matrix

/shared-bindings/index.rst: updated Support Matrix format as discussed in PR #503 & Issue #448.

Issue #462 :
/shared-bindings/microcontroller/Processor.x:

Added functionality for retrieving the unique identifiers for all ports that support it.
Sphinx-rST documentation is in place, to include a note that the nRF port does not currently include struct for bytearray unpacking.

/shared-bindings/ports/XXXX/Processor.x:

Added functions to retreive unique identifiers for t...