i should put a pointer to Building CircuitPython guide into the README
#circuitpython-dev
tulip sleet
marble hornet
spi question: do the bytes to be written over spi need tp be buffered in a byte array then be passed to the bus or can they be passed in chunks as being generated, like holding teh clock to send one byte after it has been fetched or calculated?
exotic pumice
gif decompression sux
I spent like 2 hours translating a c library to python and it returns all zeroes
exotic pumice
I found some really good documentation now, but I'm stuck on how to refer to a bytearray as a bitstream
like, if I need to read 5 bits at a time of a bytearray
I know you use masks and such, but how do I deal with bits between two bytes?
turn the whole thing into a massive integer?
lol
255 byte integer sounds like a bad idea
gilded cradle
What do you mean by deal with bits between bytes? like b("0xFF80") would just be two bytes.
Did you try bitshifting?
main meteor
Yeah, it'll be shifting and masking, similar to how the base64 code uses 6 bits at a time (4 of those in 3 bytes). With 5 bits, it'll end up with 8 5-bit quantities in 5 bytes.
AAAAABBB BBCCCCCD DDDDEEEE EFFFFFGG HHHIIIII
gilded cradle
Take a look at the touch_read() function in https://github.com/adafruit/Adafruit_CircuitPython_RA8875/blob/master/adafruit_ra8875/ra8875.py
I had to basically get 2 numbers out of 3 bytes
Mind you that this was my first real attempt at CircuitPython, but hopefully it will give you the idea.
exotic pumice
so like, the part I'm confused on is the BBB BB
main meteor
For example to pull out the value of "B" (which spans two bytes): ```python
b = x[0] << 2 | x[1] >> 6
He's saying that he read those bytes and used shifting and masking to assemble them into the correct numbers
main meteor
The 3 high bits of B are in the low bits of x[0], so they get shifted left 2 bits to put them in the correct position. Then the 2 low bits of B are in the high bits of x[1], so they get shifted right 6 bits to put them in the correct position. Then those two get or'd together to build the final number.
gilded cradle
Good explanation
exotic pumice
I have to work out the shift programatically for a variable amount of bits
like 2 bits, 5 bits, etc.
gilded cradle
Are they always 5 bits?
exotic pumice
no, that's what I mean by variable
gilded cradle
Ok, but if I remember gifs correctly, you read a byte that tells you how much more to read
exotic pumice
I've read in all the data, now I'm working on the decompression
gilded cradle
Ah, I see.
main meteor
Ah, the LZW code? That's thorny.
exotic pumice
yeah
have a look at saving the codestream as bytes here http://giflib.sourceforge.net/whatsinagif/lzw_image_data.html
main meteor
There are a few ways to slice it, but to start with, you might want to write a generic "fetch 1 bit at a time" routine and use it in a loop to get as many bits as needed.
gilded cradle
Well, I have an idea. You could basically read 5 bits (or whatever size), mask those off, then throw the remainder in a variable. On the next set of bits, read the next amount, use what's in the variable, and then replace the variable with the new remainder and so on.
main meteor
Yeah, as long as you keep track of how many bits are left in the variable, that should work.
exotic pumice
I like bodger's idea
gilded cradle
Yeah, go with whatever makes more sense to you.
gilded cradle
Cool
exotic pumice
something like this, not sure if it works yet
def fetch_bits(bytearr, nbits, bit_offset):
byte_offset = bit_offset//8
rem = bit_offset % 8
bits = 0
for i in range(nbits):
bit = bytearr[byte_offset] & 1 << rem
bits = bit | 1 << i
return bits
It's a little difficult to read, but something like that
exotic pumice
it might work
I got the right value out of it but could be a fluke
bitmath is always hard to read
gilded cradle
yeah
main meteor
Coming up with good test cases is tricky too, since you can't set one bit to zero and one bit to "1" and one bit to "2" and see if they come out in the right order.
gilded cradle
lol
exotic pumice
I almost got it
gilded cradle
Nice!
exotic pumice
I think I got the bit part, now I need to figure out when the code size (number of bits) changes
here's the code, in case it helps anyone else
def fetch_bits(bytearr, nbits, bit_offset):
byte_offset = bit_offset//8
rem = bit_offset % 8
bits = 0
for i in range(nbits):
bit = (bytearr[byte_offset] | (bytearr[byte_offset+1] << 8)) & (1 << (rem + i))
bits |= bit >> rem
return bits
it doesn't appear to be in the docs how to figure out when the code size changes on the decompression end
exotic pumice
I got it to work for a 10x10 image
but not for bigger ones that have multiple blocks before a clear code
or something
manic glacierBOT
plucky briar
hello everyone, new to circuitpython. I'm trying to read just the leading edge of an input, I found in python they talk about reading RISING edge but nothing for circuitpyton and Metro M0 express.
raven canopy
@plucky briar welcome! unfortunately no, edge detection is not available in circuitpython. also, i assume you'd want to use it with an interrupt/callback, which is also not available. the closest you can currently get is using digitalio.DigitalInOut, and poll for state (HIGH/LOW). using a state machine will allow you to detect if it is rising or falling:
import digitialio
import board
pin = digitalio.DigitalInOut(board.D5)
pin_state = pin.value
last_pin_state = pin_state
while True:
pin_state = pin.value
if pin_state and pin_state != last_pin_state:
print("Pin is high, and previously low, so a rising edge occurred.")
if not pin_state and pin_state != last_pin_state:
print("Pin is low, and previously high, so a falling edge occurred.")
last_pin_state = pin_state
@raven canopy Thank you, that should work, greatly appriciated!
solar whale
@raven canopy adabot used to do an auto release of the Bundle at around 0600 EST -- I see it just ran -- is it on a different schedule or was it manually run.
raven canopy
@solar whale it used to run on Scott's local machine, which probably had 0600 as the cron time. Its now running solely on Travis, but unfortunately Travis only guarantees "at some point in the day" for their daily cron jobs. 😦
solar whale
ok -- not a problem -- I was just curious.
raven canopy
no worries. i wish it was a dead-of-night cron, but is what it is. 😄
solar whale
It's best to choose your battles when dealing with Travis 😉
manic glacierBOT
pastel panther
@plucky briar @raven canopy there is a lib that can do what you want:
https://learn.adafruit.com/debouncer-library-python-circuitpython-buttons-sensors/basic-debouncing
plucky briar
@pastel panther That's it, thank you very much!!
pastel panther
no problem, glad to help
hazy gust
I use fedora and the 'usb' drive gets mounted read only a lot, any tricks there? I usually just remount rw.
[ 8771.160634] FAT-fs (sdb1): Filesystem has been set read-only```I have a clear code wiping out my table, and then a prev_code referencing into that table, not sure what to do
slender iron
<@&356864093652516868> Here is the notes doc for the meeting tomorrow. https://docs.google.com/document/d/1pN87ZkRxPdJQstl61UOHB1VrDjpBfO9p65Byju1G8C0/edit?usp=sharing Everyone is welcome to join in the CircuitPython voice channel at 11 am Pacific/ 2pm Eastern.
idle owl
@solar whale I'm guessing you tested the magnetometer update you PR'd? (It looks right but I wanted to verify)
solar whale
@idle owl yes, I can add a note to the PR.
idle owl
If you'd like to, that would be great. But no worries if not. I'll take care of the PR. 😃
solar whale
Thanks
idle owl
Done!
slender iron
<@&356864093652516868> Meeting in 15 minutes or so. Notes doc is here: https://docs.google.com/document/d/1pN87ZkRxPdJQstl61UOHB1VrDjpBfO9p65Byju1G8C0/edit?usp=sharing
marble hornet
awesome!
idle owl
Yeah it doesn't render links like that.
raven canopy
I think you can HTML 'em.
<a href="https://youtu.be/baa5ILZTRkQ>YouTube</a>
<a href="https://diode.zone/videos/watch/cf9edcce-04d4-4ce4-9e95-33ab503fb480">diode.zone</a>
Lol. Or not..
marble hornet
ah well
raven canopy
Wait. Missed formatting
errant grail
Lurking from the studio again today. Will be back "in voice" next week!
slender iron
turbid radish
lurking here also
pastel panther
Gotta split, I'll leave some notes in the notes; if someone wants to read them, great. Thanks!
🤽
meager fog
@umbral dagger ping
umbral dagger
@meager fog pong
meager fog
can you 'move' the cheetsheet repo
and we'll put in the newsletter
then u can fork it
(to make more changes)
molten sentinel
Lurking
slender iron
👍
wraith tiger
I’m lurking too.
turbid radish
@umbral dagger , I can move if you cannot
meager fog
@turbid radish you cant move it, he owns the repo 😃
wraith tiger
I missed the stream. I’ll have to check out the video.
umbral dagger
@turbid radish I should be able to fork/PR awesome-circuitpython... watch for it.
meager fog
@umbral dagger any luck with moving Cheatsheet? if you cant move to an org, try moving it to me (ladyada)
turbid radish
Aw 😊
turbid radish
MikeB is good 😃
umbral dagger
@meager fog @turbid radish PR submitted to awesome-circuitpython to add the cheatsheet in a dir as suggested.
raven canopy
- @sajattack for some good discussion on frequency capture, and providing some alternative frequency generating firmware for testing.
- @tannewt for the "Debugging, with tannewt" live stream. Awesome look at your process, and how analyzing the heap can help the debug process.
- @kattni for diving into Datasheet land, and designing Fritzing part(s) and her first breakout board in Eagle! Bravo!
- @jerryn for continuing to be the break-things & replication wizard. It truly is a service to community.
- A couple days late, but I'd like to spring a Group Hug for Grouphug Day. Shadow or not, you all are awesome!
meager fog
i was confused
turbid radish
It was my understanding it was rto be a subpage of awesome circuitpython
umbral dagger
@meager fog no worries... I don't have repo creation perms. This way we can just use the PR approach for updating.
umbral dagger
@turbid radish Add a link in the main awesome file?
solar whale
🐿 not quite a GroundHog
turbid radish
yes - would you like to PR or have me do?
umbral dagger
@turbid radish You can... where & how, etc.
turbid radish
ok, I'm on it
inland tusk
Saturday was groundhog day😋blinka:
inland tusk
Jutst want to know if midi-usb has been ncluded in 3.0 or 4.0? I have been using the aws version.
slender iron
it should be in 4.0
turbid radish
@umbral dagger @meager fog Cheat Sheet merged and linked from main guide https://github.com/adafruit/awesome-circuitpython/blob/master/README.md in section Guides
@meager fog - PT informed on Slack for Newsletter
marble hornet
brb
turbid radish
Yay @idle owl 🦅
umbral dagger
@turbid radish New PR to fix my name
marble hornet
nice!
raven canopy
Last Week:
- adabot:
- Mitigated a couple intermittent Travis cron failures with the library report. Hopefully. We'll see if they pop back up this week. (And I just realized I didn't gracefully handle one, but may provide insight to the root cause)
- FrequencyIn:
- Changed the polling period to 10ms, which greatly stabilized the event counts. Having thoughts about making this user configurable. Now steadily capturing up to 2MHz with no ill affects on the VM.
- Frequency calculation is still low (2KHz reads as ~1.8xKHz, 4K as ~3.4xKHz, so on). I believe this is due to my poor mathing, and attempts at adjusting for EIC latency.
This Week:
- FrequencyIn
- adabot:
- Work on newline issue for Google Docs transcription
- Maybe circuitpython-build-tools for
adafruit_framebufinclusion of default font.bin. https://github.com/adafruit/Adafruit_CircuitPython_framebuf/issues/11
umbral dagger
FYI: I'm working on v2 of my humidity monitor using CP (instead of C), on a Feather M4 and the 1.54" square eInk display.
inland tusk
What about wraapper for midi msgs.?
raven canopy
kk. Thanks!
errant grail
Ladyada has a MIDI library in the works. JP used it recently. Channel mgt is included.
slender iron
idle owl
S3 bucket.
marble hornet
@raven canopy did you try [This is a link](https://tinyurl.com/ycepjur2)?
inland tusk
@idle owl yes that is right
raven canopy
@marble hornet unsuccessfully before, and Scott tried earlier which prompted my HTML attempt.
marble hornet
ah, try the link tho!
errant grail
Thanks everyone! 
raven canopy
Thanks everyone!
turbid radish
Thanks all!
wraith tiger
👋
marble hornet
me too
raven canopy
👋
molten sentinel
Thanks !
marble hornet
can we chat about blit later?
slender iron
@marble hornet ya, I can hang out
tidal kiln
compiled vs. interpretted
marble hornet
someone walking in, i don;t want to share thier audio, sorry
devout flame
Thanks for the links! So I think I figured out my problem by finding this issue in github (https://github.com/adafruit/Adafruit_nRF52_Arduino/issues/196). If I double-tap the Reset button everything works as normal again. So, I think there's a definitely a bug in the bootloader.
slender iron
<@&356864093652516868> Recordings of today's meeting are here: https://youtu.be/7cvmm360FoU https://diode.zone/videos/watch/623b5974-75b2-406d-90c8-0012bbe1d2f6
slender iron
@idle owl thanks for the merge! I'll do beta.2 once travis gets through that
idle owl
@slender iron Sounds good!
slender iron
slender iron
so close! one build for one board is 28 bytes too big https://travis-ci.com/adafruit/circuitpython/jobs/175270303
idle owl
find some bytes!
slender iron
I'm wondering if that check is correct
raven canopy
"Why are the bytes always gone?" - Captain Jack Sparrow
slender iron
since if you get it way over the linker fails instead
slender iron
it looks correct 😦
raven canopy
@idle owl for the adafruit_framebuf font file thing with circuitpython-build-tools, do you want me to approach it as a one-off, or work it in a way that is more future-proof?
idle owl
@raven canopy Harrumph. I kind of feel like it's a one-off. Or at least maybe hope it is?
Let's call it a one-off for now. If it comes up again, then I'm wrong and we should have future-proofed it 😄
raven canopy
👍
now to re-construct my "non-pip'd, for local use" version. i really should save it this time. 😆
idle owl
Oh man.... if I had a dollar for every time I "should have saved it this time"....
raven canopy
ikr
idle owl
"I won't need this again." "Well that was a fluke, no way I'll need this again." "Ok well, I guess, but seriously NO WAY I'll need it again after this......"
🤦
gilded cradle
Is that what happened with the DotStar library? JK
slender iron
removes the micropython module and now has 2400 bytes
raven canopy
oh man. there goes const()... 😬 😄
raven canopy
haha. i almost suggested terminalio cause i was like "who uses that?". then checked the history...
slender iron
we could consider only supporting hallowing for m0 displays
mem_info freed up ~1k on its own
raven canopy
that's doable. gc.mem_free is still available, right?
raven canopy
man, my local library cache was a little behind: 123 Forks Updated; 18 New Forks
celest zenith
is it possible to override a frozen library with one in /lib ?
slender iron
@raven canopy ya, it is
raven canopy
@celest zenith i think you can force it like this:
from <folder_name> import <library>
or maybe it would be like this:
import <folder_name>.<library>
If I am not mistaken, / is read before .frozen, so you can put updated libraries in / and they will override .frozen
/lib is read after .frozen
raven canopy
i remember that re-arrangement, but not the final determination. 😄
tough pier
hello all, javascripter here but newbie to circuitpython. I just want to return the value of the light sensor. I've done the following:
import board
from analogio import AnalogIn
consoleLighting = AnalogIn(board.LIGHT)
print(consoleLighting.value)
I get Pin 11 in use
tough pier
no @slender iron I've got a fairly large program that turns real world switches into inputs on P3D (a flight simulator) but I am just trying to understand why that pin is in use, and how to tuen it off...
slender iron
you are likely using it earlier. pins can have multiple names
tough pier
no, i'm not using it. its pin a8 and i'm just using the repl to try to return that value
i don't know why circuitpython is so obtuse... at least working with the cpx
slender iron
did you use the cpx library at all?
slender iron
are you doing anything else besides the four lines above in the repl?
its possible there is a bug
tough pier
nope that is it
slender iron
what version of circuitpython? what board?
tough pier
sorry this should be a simple answer, for a really simple problem... I'll keep reading the docs
slender iron
it could also be a bug and not your fault
tough pier
could be. do you code? does my code look correct to you?
slender iron
ya, those lines should work on their own
tough pier
well at least I'm not crazy...
umbral dagger
Is there a way in CP to tell whether USB is connected?
(as opposed to being powered by battery)
pastel panther
not being helpful but yes I believe so, I just don't know how 😮
I recall someone else was doing it
tough pier
@pastel panther what do you do when you get "Pin PA11 in use" or any other pin attached to a built in sensor...
pastel panther
look for something that could be using it? As tannewt was alluding to some of the board.PIN_NAME names are duplicate names for the same pin.
looks at CAD files
tough pier
In this case I'm calling for ambientLight = AnalogIn(board.LIGHT)
pastel panther
as far as I can tell the light sensor is the only thing using that pin
tough pier
I've also tried PA08
and a8
so when I do "ambientLight = AnalogIn(board.LIGHT)" and then "print(ambientLight)" I should get the value back right?
pastel panther
I thikn you need to say ambientLight.value
not 100%, I don't use the ADCs a ton
I can double check
tough pier
I've heard there is a way to turn off the built in pins when you are trying to program them yourself. BTW I just tried .value but I still get the same error message
pastel panther
I'm not quite sure what you mean by "turn off the built in pins"
the board.PINNAMEs are just aliases for the actual pin name
tough pier
It was just a reference I saw in the docs (can't find it again)
thats what I thought. Do I have to set it as an output or something like the digital i/os?
pastel panther
not if you're trying to read the light sensor
have you tried this code?:
https://learn.adafruit.com/adafruit-circuit-playground-express/playground-light-sensor
Unfortunately I don't have my CPX handy at the moment
tough pier
yup, many times, the very definition of crazy
pastel panther
What version of CP are you running?
tough pier
3.1.1
pastel panther
It might be worth giving 4.x a try:
https://github.com/adafruit/circuitpython/releases/download/4.0.0-beta.2/adafruit-circuitpython-circuitplayground_express-en_US-4.0.0-beta.2.uf2
If that doesn't work I can only suggest that there might be a bug; If you can create a Issue here including a full code example that reproduces the bug, that would be helpful so someone can try to reproduce it and dig deeper:
https://github.com/adafruit/circuitpython/issues
tough pier
that's a uf2 file
I was just looking at 4.0
I think it might be a bug because the code couldn't be simpler. I'm using the repl and it looks like this:
import time
import board
import digitalio
from analogio import AnalogIn
from adafruit_circuitplayground.express import cpx
ambientLight = AnalogIn(board.LIGHT)
while True:
print(ambientLight.value)
time.sleep(0.1)
tough pier
ah ha!
slender iron
or print(cpx.light) if I remember right
tough pier
@slender iron That DID IT!
tough pier
Thank you. that's what I meant earlier about obtuse... it would think it would be ".value" on any sensor...
tough pier
And I probably should have had an error like conflict with cpx or something
But again thank you @slender iron !
slender iron
np
tough pier
@slender iron another quick question. I tried this now that I've got that value (which is running between 3 & 5) with my lighting. So I tried this:
if ambientLight < 1:
print(ambientLight)
time.sleep(0.1)
else:
print('Too Bright!')
time.sleep(0.1)
But All I ever get is too bright even though I can put my finger over the senor and watch it drop
do I have a syntax error?
slender iron
try printing out ambientlight all the time and seeing what the value is when your finger is over it
tough pier
well that's weird. It was moving before, but now its not
it's just steady 6 right now
slender iron
@tough pier are you doing = ambientLight.value in the loop still?
tough pier
nope, I've got :
ambientLight = cpx.light
print(ambientLight)
time.sleep(0.1)
and it was working. I have tried powering off cpx, restarting MU, etc...
now it's just stuck at 6 and once after boot, it was just showing 4
slender iron
where is your loop?
always post all of your code. you can use three backticks around it on each side to format it
``` <code> ```
code
tough pier
Oh yea definitely, I just didn't paste that because its a given
raven canopy
@umbral dagger supervisor.runtime.serial_available will tell you if the USB is connected to a host. Doesn't work for non-data USB (charging cable), and also doesn't reset when unplugged.
https://circuitpython.readthedocs.io/en/latest/shared-bindings/supervisor/Runtime.html
vapid monolith
is it possible to attach more storage to the circuitplayground express in some way?
umbral dagger
@raven canopy It should do what I need. Thanks.
solar whale
@vapid monolith The simple answer is yes it is possible. You could connect an SD Card to the CPX via SPI, but it will use most of the available pads. Also loading the driver fo the SD Card will severely limit the amount of RAM available for your code execution. Here is a link to the SDCard breakout board https://www.adafruit.com/product/254
vapid monolith
Thanks @solar whale
main meteor
You could also attach an FRAM board.
solar whale
Good suggestion for a small increase in storage -- especially an I2C FRAM which needs fewer pins. I assumed that if the 2Mbye flash was all used then a larger additional storage was needed.
lone sandalBOT
solar basin
@slender iron I'm about halfway through the VOD of your live stream. Very fascinating!
slender iron
yay! glad it's interesting @solar basin
solar basin
I love coding live streams. I like to see how other people solve problems and what tools they use. Using GraphViz to visualize memory is one of the best uses of that tool I've seen lol
slender iron
😃 I'm happy it no longer crashes
idle owl
@gilded cradle I have a mission for you to add to your current awesomeness!
manic glacierBOT
gilded cradle
Hi @idle owl, what is this mission?
idle owl
@gilded cradle Hey!
gilded cradle
Hi
idle owl
Ok, so the mission IF YOU CHOOSE TO ACCEPT IT: Every repo you update, please rename the examples to match the design guidelines. It's not something we want to try to go through and do all at once, but it needs to happen, because at the moment the examples bundle is a bit crazy. So! If you do something for a repo, please check the examples and make sure they're named properly.
gilded cradle
Could you give me an example? I've been trying to name the example according to my best guess, but now I'm not quite sure if that was correct.
gilded cradle
Ok
idle owl
Every repo should have a libname_simpletest.py file in the examples folder at a minimum. Any other examples included should be prefixed with libname_ so all examples found in any given repo folder start with the library name followed by an underscore.
So for RA8875, you would want at least one example called ra8875_simpletest.py and if you wanted to add more it would be ra8875_font_example.py or something
So if there's an example in the repo already called libname_test.py or something, and that's the only one, change it to libname_simpletest.py and if there are multiple examples, make sure the others start with libname_.
gilded cradle
Ah, ok. So for instance in https://github.com/adafruit/Adafruit_CircuitPython_FeatherWing/tree/master/examples I created a featherwing_dotstar_palettetest.py file, but maybe rename it to featherwing_dotstar_palette_example.py
idle owl
No that's a fine name you gave it already!
You could change it if you think example is more descriptive
but beginning it with featherwing_dotstar is the most important bit there.
gilded cradle
Ok, so you want me to clean up other repos?
idle owl
You don't have to do it all at once. But since you're touching so many repos, if you could check each one that you touch and make sure it's good to go, that would be amazing.
But the goal is to get them all proper.
The Adabot output tracks which repos have issues
gilded cradle
Ok, sure. I just wanted to understand what you were asking me before I accepted.
idle owl
So it's in the Lib tracking issue as well.
Ah ok!
Yeah, I'm thinking if you happen to update a repo, or add something to it, check the examples as you go.
Eventually we'll get to all of them that way and it won't be a huge burden on anyone.
gilded cradle
Ok cool. I probably may have anyways, but I'll definitely check for sure.
idle owl
Thanks!
gilded cradle
You're welcome!
idle owl
Sometimes it will affect Learn guides, but we'll get emails about it and fix those on our end. So don't worry about that part of it.
Luckily the system emails when we break a link by renaming a file. Handy.
gilded cradle
Ok, sounds good. I do have a question for you regarding the featherwing library though.
idle owl
Sure!
gilded cradle
I'm trying to extend the dotstar library for the neopixel wing and the extension works great so far, but for RTD, should I create functions and just call super().function_name() or not worry about it?
Just so I can update the examples to reflect that library better
idle owl
That's stretching my knowledge, actually. How does calling super() affect RTD?
gilded cradle
Well, I can either disregard functions that use the same parameters and I think it won't generate any documentation for that function or I can create a function, put a neopixel specific example in there and call super() which would essentially do the same thing functionally.
idle owl
Oh! So you're making the DotStar FeatherWing lib more into a Addressable RGB FeatherWing Lib?
So it'll work with both?
Without duplicating a bunch of code
gilded cradle
Yeah, it works pretty well
idle owl
Nice!
gilded cradle
I just initialize them a little differently
idle owl
Ok so I would consider figuring out a different name for the lib then, and add NeoPixel specific examples, but not call Super, so it won't generate two sets of docs, it would just be one? So then it would be one set of docs with examples for both wings
or wait
I think I get what you're doing
hold on: example
https://github.com/adafruit/Adafruit_CircuitPython_CharLCD/tree/master/adafruit_character_lcd this has multiple things that use the same base code.
Is what it looks like in RTD
Does that help? Or am I still not understanding the question
(Which is totally possible)
gilded cradle
I think so. I'll have to take a closer look when I have a little more time, but it looks like that might be what I'm referring to.
idle owl
Ok! Let me know if it's not when you do get to it
gilded cradle
Ok. I mean that's basically what I figured it would generate. I just didn't know if we should make it appear like 2 separate libraries, have 1 extend the other, or base them each off a common parent?
Right now I have 1 extending the other
But the Char LCD library looks more like 3 libraries based off a common parent
idle owl
Yeah, so it might not be a great example. If you want to do extending, I'm sure it's a great idea 😃 As long as there's documentation somewhere showing that they both work, like in the examples or docstrings, I'm sure it's fine.
gilded cradle
Ok, yeah, I was planning on having an example file for each.
It was the docstrings I was referring to when I asked about using super and all that.
idle owl
Ok. Well, I would say do whatever you think makes sense and if we need to change it up, we can. You can build Sphinx locally but it's a beast because it expects all of the dependencies to be installed. I have a venv from doing all the PyPI stuff which has every lib installed so it works locally for me. Whatever you decide will be great 😃
gilded cradle
Ok, thanks. That helps.
lime trellis
My custom M4/ESP32 board is running quite well on CP. - how do I go about adding it to the official /ports/ section of the repo? PR?
lone sandalBOT
raven canopy
"Sphinx locally...ITS A TRAP!" - Travis-ci.com 🐭 😄
slender iron
@lime trellis which chip runs circuitpython?
raven canopy
looks like the SAMD, with the ESP32 running micropython.
slender iron
happy to accept a PR but we are no longer supporting circuitpython on the ESP32 officially
raven canopy
@slender iron the adafruit_framebuf font file inclusion for circuitpython-build-tools was merged in, and apparently we missed a release from the last update (folder naming). do you want to look it over and release, or should i go ahead and do it?
slender iron
go ahead and do it. my brain is deep in displayio atm
raven canopy
👍
lime trellis
@slender iron yeah @raven canopy had it right, only the SAMD is running circuitpython. The ESP32 is on micropython
still allows you access the circuitpython REPL or micropython REPL from terminal, though
raven canopy
@lime trellis i can assist, to a degree, while tannewt is heads down. give me a sec while i finish this release...
lime trellis
@raven canopy awesome, thanks!
Looking at the other boards, if my PR just includes my
- pins.c
- board.c
- mpconfigboard.h
- mpconfigboard.mk
I should be set, yeah?
raven canopy
@lime trellis yep. assuming your port requires no other changes (common-hal, supervisor, etc).
i peeked at your repos, and didn't see a fork of CP. but, it seems you know your way around git/github... 😄
lime trellis
😃 yeah I'll fork now and just drop my boards directory in. Is it going to get fussy with me if I git submodule update --init --recursive ?
slender iron
is losing steam
lime trellis
@raven canopy should I also do a PR for the uf2-samdx1/boards/?
slender iron
all good. I hope this is the last bit of displayio core work needed for bit
exotic pumice
somehow I got 12 frames of a gif decoded but the 13th frame failed
not sure what's going on there
in my display news
unlucky number 13 I guess
raven canopy
@lime trellis sorry. had a kitchen..."incident". the git submodule update shouldn't cause any trouble. and i doubt you'll need to do a make translate. as for the bootloader, that's a separate thing that i'm not at all in a position to advise one way or another. PR it and find out? 😄
runs out to get food since previous efforts aren't going to work out
lime trellis
@raven canopy ok thanks for the help!
manic glacierBOT
gilded cradle
Ok, if you've been holding out, we need somebody to be star number 1000 on the circuitpython github repo. Be that person!
gilded cradle
Yay
main meteor
Seemed like a good idea 😃
manic glacierBOT
river quest
@main meteor congrats!
please send me an email pt@adafruit.com
gonna send ya out a gift for 1,000th star
main meteor
If my order hasn't gone out yet, you could tuck it in with that.
river quest
@main meteor oh, this would be something for later - hard to stop orders, etc.
main meteor
Makes sense, just a thought. I know the order pipeline is pretty, um, pipelined there.
slender iron
opens reviews todo based on emails... @idle owl beats me to them
idle owl
😄
solar basin
The M4's are super popular in the store, huh? They seem to be flying off the shelves lol
That Grand Central would look sweet in M4 purple
manic glacierBOT
manic glacierBOT
pastel panther
@raven canopy I've got "It's Automatic" stuck in my head now, so thanks for that
raven canopy
there's worse things to have stuck in your head... 🕺
pastel panther
True, can you call me maybe ? I promise I'm never gonna give you up. If not I'll mmm-bop along to this song on my own
raven canopy
that. was. masterful. bravo! 👏
meager fog
@solar basin we're still working out production with the grand central...its a tough one to fab
but we'll get there 😃
lone sandalBOT
meager fog
@tidal kiln wanna try a Quest for me?
solar basin
@meager fog I have faith 😃
manic glacierBOT
manic glacierBOT
marble hornet
@slender iron looks nice!
slender iron
thanks!
tidal kiln
@meager fog sry, had an AFK side quest today. what's up?
manic glacierBOT
marble hornet
I'm not asking for this to happen, I am curious: Is there a reason CP doesn;t support the stm line, specifically the pyboard and such>
slender iron
@marble hornet because adding API support would take a lot of time
marble hornet
shame microchip doesn't make arm chips w/ 1mb ram 😢
slender iron
😃
you could always add stm support 😉
someone is working on adding stm32f4 support to tinyusb
marble hornet
ooh! when I finally run of ram I might 😉
might**will
or fpga it with a separate ram chip depending on the support as the time. thank you for showing me litex!
slender iron
👍
bronze geyser
(I apologize upfront...I haven't been circuitpythoning for a few months). I have a library i wrote for an early version of cp. i want to create .mpy... i cloned circuitpython and ran "make" within mpy-cross. Sadly, I wasn't able to gleefully just get this done... Traceback (most recent call last): File "../py/makeqstrdata.py", line 21, in <module> import huffman ModuleNotFoundError: No module named 'huffman' Before I bumble about for many hours, i wanted to ask if there were mpy-cross built for the OSs (I use High Sierra)...if not, can you please let me know if it is easy to "fix" this error? Thank you.
manic glacierBOT
slender iron
welcome back @bronze geyser !
did you git submodule update --init --recursive . in the top level?
bronze geyser
@slender iron Thank you. I wasn't really gone...i just got enthralled with Flutter ... i mean...a IDE thingy called Flutter? Gotta try that out...and then...Dart...Dart? hmmm...
slender iron
😄
bronze geyser
@slender iron ah! Righto. I'll give that a twirl... it's coming back to me (yah, right).
@slender iron btw - i wish your HHH on the Eastside was like a breakfast of lunch...
slender iron
it wouldn't be happy hour then 😃
I'd be happy to attend an earlier event
(pycascades is at UW in a couple weeks)
steady pivot
Hey all, what's the best circuit python board for ADC's? I want something with both a decent resolution and high baud rate. Thanks 👌
bronze geyser
@slender iron i mean...isn't Happy overrated when we could all just be hilariously pleased? OK. I'll stop...
main meteor
"baud rate"? Do you mean sample rate?
steady pivot
Yeah
slender iron
CircuitPython doesn't support high speed ADC sampling now
steady pivot
All good, thanks
slender iron
idle owl
@slender iron Do you have time to vid chat to get me started with register? I think I simply don't get it. Or am missing something obvious here.
slender iron
sure!
stuck elbow
if anybody is interested, here is the recording of my fosdem talk about circuitpython and games: https://fosdem.org/2019/schedule/event/python_games_with_micropython/
slender iron
@stuck elbow thanks for the link! I'll definitely watch it
prime flower
@stuck elbow oh man, those hand-drawn slides are cool.
idle owl
idle owl
nice!
stuck elbow
@prime flower thanks
bronze geyser
Should this work? >>> from adafruit_bus_device.spi_device import SPIDevice Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: cannot import name SPIDevice thank you.
raven canopy
@bronze geyser it should, yes. Do you have the bus device library installed?
bronze geyser
@raven canopy thank you for the reply. Yes. But they were the originals installed on my Itsy bitsy...i just updated to CP 3.1.2 ... perhaps the libs need to be updated too.
raven canopy
Only need update if major version changed, or fixes. 🤔
bronze geyser
@raven canopy ...oh..bummer...
@raven canopy hokay...turns out the libs on my CIRCUITPY mustabeen bad. When reinstalled...worked. Thank you very much for your reply.
tidal kiln
@stuck elbow cool talk. i like how you went into some detail about framebuf stuff.
raven canopy
these adabot cron failures are starting to annoy me...
exotic pumice
is it a travis issue?
raven canopy
yeah. there are 4 scripts that run. 1st completes without fail. 2nd one does nothing, and trips the "10 minutes no-output" limit. but....not always.
exotic pumice
yeah, travis is super buggy. The rust-lang team is looking for alternatives.
I think AWS CodeBuild might be viable for people who want a managed solution and Jenkins for those that can run their own servers.
maybe no mac support on codebuild though?
does microsoft own travis now?
raven canopy
not that i know of
exotic pumice
ok, I wasn't sure if it was part of github
pastel panther
@slender iron I finally got around to wiring up a displayio test app; just wanted to say that even though I knew about the blinka, it was a nice surprise to see it 😃
slender iron
😃 glad it worked!
pastel panther
I of course forgot to change the pins and was scratching my head for a bit there but I finally figured it out :p
slender iron
yup, I've been there
I just fixed my standalone circuitpython by realizing I had hard coded the pins
pastel panther
hah, I suppose we're only human 🤣
slender iron
yup, fixed it today 😃
pastel panther
also the OnDiskBitmap example code works great; I now have a pretty flower on my screen
I take that back, I think I had to change the Sprite to a TileGrid, but otherwise it works great
slender iron
ya, I haven't removed all of the Sprite mentions yet
raven canopy
@exotic pumice went searching the travis blog to see if i could find any news to explain my issue. came across this post that Travis has been acquired: https://blog.travis-ci.com/2019-01-23-travis-ci-joins-idera-inc
lone sandalBOT
lone sandalBOT
terse kayak
@raven canopy I don't understand the '''-o $LIB_CHECK_CP_FILE''' ... I mean I get you are saving the log but I don't see that option in python, I mean it worked before, I'm just not familiar with it. The only other thing I can see is that the step it does in typically takes 8-9 minutes. I assume the log shows up to both the file and the terminal. Looking at the prior successful run it seems to go to the terminal. Maybe add a tail of the log file to the command?
Maybe this -o causes output to only display at the end of execution? Maybe just pipe it to the log and tail the log in tandem?
Splitting the script up if possible may work instead.
tawny oasis
From where can I learn circuit Python.
main meteor
Most of the boards that run CircuitPython have guides to get you started like this one https://learn.adafruit.com/adafruit-circuit-playground-express/what-is-circuitpython
There's also this "getting started" guide: https://learn.adafruit.com/welcome-to-circuitpython
solar whale
in the guide https://learn.adafruit.com/how-to-program-samd-bootloaders/programming-the-bootloader-with-atmel-studio it suggests using ATMEL studio even on Linux or Mac -- iIs it preferred over using the Jlink tools directly?
seems like a lot of extra work to install Windows in a VM in order to use the JLink
main meteor
Microchip offers their MPLAB for Mac and Linux, I was hoping that after they acquired Atmel that Studio would get ported too, but alas no such luck.
It does look like MPLAB has beta support for SAM E processors but I don't see SAM D.
raven canopy
@terse kayak the -o is used with argparse in the script for various command line arguments. I'm starting to think that it is a Travis problem, or at least a limitation that I haven't designed for. I appreciate you looking though! I may end up splitting to either a matrix or stage approach on Travis.
prime flower
@solar whale You can use OpenOCD with the Arduino IDE to flash the bootloader using a jlink, but I was running into issues with it on MacOS.
solar whale
@prime flower thanks. I was just curious. I thought it could be done with jlink tools directly.
prime flower
flashing with AS7 yields pretty high repeatability. I'm not sure if you can flash the bootloader from the jlink tools, you need to set a bootloader unlock bit prior to and after flashing
solar whale
Ok - thanks! I’ll experiment and let you know if I learn anything..
raven canopy
As an AS7 user, I'll just note that it uses the jlink software underneath (jcommander, jflash, etc).
pastel panther
@solar whale I just use the jlink tools directly on my mac
I've used them to load uf2-samd for bare chips, all my custom boards. I think done adafruit boards too
solar whale
How do you set the fuse bits?
pastel panther
I've never had to, as far as I know.
I just use loadbin in jlink commander mostly. I think I used gdb as well I've or twice (for loading bins). Also for debugging of course
solar whale
I think that’s what I have done. Also seem to recall using gdb for fuse bits. I’ll dig into notes. Sounds like there are options.
Ah SAMD51 The SAMD51s bootloader protection can be temporarily disabled through an NVM command rather than a full erase and write of the AUX page. The boot protection will be checked and set by the self updaters. So, if you've used self-updaters but want to load it directly, then you'll need to temporarily turn off the protection. In gdb the command is: set ((Nvmctrl *)0x41004000UL)->CTRLB.reg = (0xA5 << 8) | 0x1a
Found my old notes. I’ll try various methods... need to finish installing windows 10 in Virtual box. May be useful to have anyway.
tawny oasis
@main meteor thanks for the support.
umbral dagger
I'm really not loving these CP exceptions thrown without any data/message.
umbral dagger
I'm getting a TypeError with no message from self.update(zip(parms, args)) from within a method of a subclass of dict. parms and args are tuples. The code works fine verbatim in the REPL (with empty tuples as they are in the case that throws the error).
solar whale
I have so much to learn -- sorry I can't help. I have no idea what this means from within a method of a subclass of dict. 🤔
marble hornet
@umbral dagger if i'm not wrong update needs a dict and zip returns a set
which would be a type error
umbral dagger
zip actually returns a <class 'zip'>
d.update(zip(('a', 'b'), (1, 2)))```works as expected
So with no information in the error I have no idea what's happening.
main meteor
Run dir() on what zip returns?
umbral dagger
Just __class__ and __next__
main meteor
So basically an iterator, I guess
umbral dagger
So it seems
raven canopy
What are the contents of the tuples?
umbral dagger
They're empty
Here's the full context:
"An environment: a dict of {'var':val} pairs, with an outer Env."
def __init__(self, parms=(), args=(), outer=None):
# Bind parm list to corresponding args, or single parm to list of args
self.outer = outer
if isa(parms, Symbol):
self.update({parms:list(args)})
else:
if len(args) != len(parms):
print('Different lengths')
raise TypeError('expected %s, given %s, ' % (to_string(parms), to_string(args)))
self.update(zip(parms,args))
def find(self, var):
"Find the innermost Env where var appears."
if var in self: return self
elif self.outer is None: raise LookupError(var)
else: return self.outer.find(var)
And it's constructed with Env()
raven canopy
Hmm. I know there are warnings for empty lists as default args; not sure if it applies to all iterables.
raven canopy
No, I mean as a function argument.
def __init__(self, foo=()):
oh...
raven canopy
May only apply to mutables, though. Still looking. Here is one explanation, but they only mention mutables. https://docs.python-guide.org/writing/gotchas/
umbral dagger
Hmm.. this is from presumably working code.
raven canopy
@umbral dagger is isa defined in your code somewhere? I can't find that function. It does look to be the same as isinstance though.
umbral dagger
it's aliased to isinstance
umbral dagger
OK, a different project/problem. Uart has had some changes in the latest 4.0: only bytearrays, the timeout is in seconds, and the length parameter has been dropped. Anything else?
I'm getting timeouts and everything looks ok.
meager fog
@umbral dagger https://github.com/adafruit/circuitpython/issues/1128
raven canopy
Adafruit CircuitPython 3.0.2 on 2018-09-14; Adafruit Feather M0 Express with samd21g18
>>> from dastels_env_test import Env, Env2
>>> foo = Env()
parms type: <class 'tuple'>; args type: <class 'tuple'>
parms id: 224576; args id: 224576
>>> bar = Env(parms=('a', 'b'), args=(1, 2))
parms type: <class 'tuple'>; args type: <class 'tuple'>
parms id: 536878384; args id: 536878400
>>> foo
{}
>>> bar
{'parms': ('a', 'b'), 'a': 1, 'args': (1, 2), 'b': 2}
>>>
@umbral dagger finally home to give this a shot. I had to change the isa line to if not isinstance(parms, tuple) and added some debug prints. but...works for me on both the above and in CPython.
though, the result in bar is...interesting.
umbral dagger
hmm.. parms & args shouldn't be there
raven canopy
yeah. also, i didn't get that with CPython. 🤷
Python 3.6.2 (v3.6.2:5fd33b5, Jul 8 2017, 04:57:36) [MSC v.1900 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>>
RESTART: C:\Users\somme\Documents\Electronics Projects\CircuitPython\dastels_env_test.py
>>> boo = Env(parms=('a','b'), args=(1,2))
parms type: <class 'tuple'>; args type: <class 'tuple'>
parms id: 1854991057032; args id: 1854991119432
>>> boo
{'a': 1, 'b': 2}
>>>
i think it may be how circuitpython handles object inheritance:
>>> class foobar(dict):
... def __init__(self, parms=(), args=()):
... print(parms, args)
...
...
>>> foo = foobar(parms=('a','b'), args=(1,2))
('a', 'b') (1, 2)
>>> foo
{'parms': ('a', 'b'), 'args': (1, 2)}
>>>
note: this is being run on v3.0.2, so could be due to out-of-date firmware
umbral dagger
I'm digging and it seems to be another exception that was getting buried somehow.
It's something written for cpython that I'm porting to CircuitPython
idle owl
@slender iron I am changing persistence and it's altering the data stream! So it's visibly working!
slender iron
great!
idle owl
@slender iron wait, so if I'm working in the high bit, how does it know? if I set width = 2 it knows there's two bytes, but how does it know I want the 7th bit on the high byte? Do I use 16 instead?
slender iron
ya
idle owl
ok
slender iron
well 15
idle owl
oright
slender iron
16 would be the first of the third
raven canopy
@umbral dagger this may be related to the dict inheritance. just something to keep an eye on as you port. https://github.com/adafruit/circuitpython/issues/1017
lone sandalBOT
manic glacierBOT
solar basin
@slender iron crazy cool stuff you got going on with the REPL
slender iron
thanks!
haughty bobcat
Is it better for me to invest in the Particle Argon or Adafruit Feather nRF52840 Express?
Primarily for Circuit Python
haughty bobcat
Hmm that would be helpful
But if we get the bootloader out of the way...where is circuitpython support on the Argon?
Because it of course has a co-processor which makes it more desirable for $3 more.
slender iron
I can't make any promises we'll keep supporting it
those of us who work for adafruit work primarily on supporting adafruit hardware
we won't break others but won't necessarily fix it either
haughty bobcat
I understand
solar whale
@haughty bobcat the argon works well with CP and I have found it to work well with the ESP32 co-processor as it now stands. However, I expect that there will not be a lot of future development for the UART based interface to the ESP32. Future work is targeted at a much more reliable SPI interface that unfortunately cannot be supported by the argon. It is a fun way to use the chips and there may be other ways to work with it but I think there will be better options in the future.
solar whale
I don’t want to discourage you. It is great fun! I also am having a lot of fun using an argon and xenon in the particle.io environment.
The mesh network is impressive.
Watch this space https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI 😉
lime trellis
FYI, my board has both UART and SPI interface to the ESP32 😉 https://github.com/maholli/SAM32
@haughty bobcat everything you need to order and build your own on the github 😃
umbral dagger
Early sucess
raven canopy
still getting that TypeError huh? 😄
raven canopy
indeed. i never experienced LISP; only heard of it..
umbral dagger
Best approach to programming IMO
Soon you'll be able to try it from the comfort of CircutPython.
solar basin
@slender iron is that any good?
slender iron
fun so far 😃
raven canopy
i throw my hands up at Travis. restarted yesterdays adabot cron job...passed. 🤷
pastel panther
@raven canopy I successfully got my 🚆 m4 into a soft reboot loop, so 🎉
yay computers 🙄
raven canopy
hehe. ikr.
solar whale
@meager fog -- yes I do
meager fog
ok load that bin with esptool as normal
then verify with terminal on esp32 that its loaded
then you need to connect to the following esp32 pins
(so you'll need to look at the schematic -- some of the pins are 'mosi' and 'sda')
ESP Reset - the reset pin
ESP GPIO0 - natch
ESP CS is IO5
ESP MOSI is IO14
ESP SCK is IO18
ESP Busy/Ready is IO33
you dont need RTS/RX/TX
ESP MISO is IO23
then power pins
solar whale
OK -- looks great -- can I use teh NINA-W102.bin on the esp32?
solar whale
cool! I wil give it a try later tonight or tomorrow. Thanks!
exotic pumice
who wants to learn rust and help me finish my samd51 hal lol? I'm pretty stuck
I don't actually expect anyone to be able to help, just venting
stuck elbow
What is a hal lol?
exotic pumice
hardware abstraction layer
library for bringing up the device and accessing peripherals
exotic pumice
you know where to find it, right?
solar basin
Yeah, I was looking at it yesterday
exotic pumice
cool
hopefully I just missed something simple
it desperately needs fresh eyes
I'd look at the datasheets and the adafruit clock stuff for comparisons
and the required background knowledge
lets head back to gitter
river quest
upcoming circuitpython newsletter in draft, add anything as a PR! https://github.com/adafruit/circuitpython-weekly-newsletter/blob/gh-pages/_drafts/2019-02-12-draft.md
solar basin
I'm going shopping, what should I buy?
solar basin
I don't have all the toys money lol
pastel panther
some of them
solar basin
That's the idea lol
pastel panther
you mean adafruit stuff, or are you just looking for life advice?
solar basin
Adafruit stuff lol
pastel panther
what do you have?
solar basin
Feather M4 & 2.4" TFT FeatherWing plus a TON of stuff I got a few years ago
Should I upgrade to the 3.5" TFT FeatherWing?
pastel panther
🤷
solar basin
I think I'm going to get an Adabox 10
solar basin
You think so?
pastel panther
no wires is pretty dope
solar basin
What's that? Other than the BT it's inferior to the M4, isn't it?
pastel panther
get a battery, you're golden
solar basin
Yeah! I want a crickit
oh snap, 256k sram
@pastel panther you sold me brother
I'm also considering the Particle Mesh boards (in addition to the nRF52 Feather Express)
pastel panther
i'd as @solar whale 's advice about those. I think he has a bunch
pastel panther
apparently the're working on getting the yields up
I think. Said something about mfg being tricky
solar basin
Yeah, ladyada was telling me that the other day
pastel panther
maybe get a esp32 module? They're working on getting it to work via spi as a wifi helper
oh, if you're going to do any c dev on a m4/m0 get a jlink mini edu
ok, really leaving now
raven canopy
@solar basin "(nrf52840) it's inferior to the M4". Actually, it is an M4 underneath. However, it does run at a lower speed (60MHz, iirc).
solar basin
I meant the atsamd51
raven canopy
In that sense, yeah, I'd consider it inferior since the BT consumes a bit of architecture.
solar basin
I'll have a Feather M4 and a Feather nRF52840 so I'll be set either way lol
raven canopy
Yep! That's a solid plan. 😁
solar basin
@pulsar ferry what's your favorite Adafruit product?
raven canopy
That's like asking "what's your favorite time to eat bacon". 😂
solar basin
Good point
raven canopy
If I had to narrow it down, farthest I could get is "the Feather Family". Great general size for almost any project, and the standard modularity to boot.
solar basin
Yeah, I'm loving the format with my M4/TFT FeatherWing
main meteor
Mine varies depending on what I'm working on. Circuit Playground Express is a recurring favorite. Another popular one is the motor+stepper featherwing. I'm also fond of the Hallowing and the FONA 808. There are also useful things (like micrograbbers and robot arms) that aren't AdaFruit products, but they're available in the store.
main meteor
Also the ItsyBitsy M4 Express: that's an absurdly capable board, with 2 analog outputs, a 5V logic output, plenty of horsepower to run CircuitPython or demanding Arduino programs, all in a small, breadboardable, cost-effective package.
solar whale
@meager fog for the ESP32SPI on the feather huzzah esp32 -- how do you connect to GPIO0? It is not on the Header. Did you have to add a wire? I am trying it on on the ESPRESSIF board since it has all the pins broken out.
solar whale
@meager fog OK -- got some basics working with the ESPRESSIF board simpletest works (except for ping) good start!
plucky briar
hello all! I'm trying to read 4 temp sensors using circuitpython, currently using arduino and it works.
from adafruit_onewire.bus import OneWireBus
from adafruit_ds18x20 import DS18X20
ow_bus = OneWireBus(board.A0)
Therm1 = DS18X20(ow_bus, 0x28, 0xFF, 0x01, 0xCD, 0x53, 0x14, 0x01, 0x37)
Therm2 = DS18X20(ow_bus, 0x28, 0xFF, 0xED, 0xCA, 0x53, 0x14, 0x01, 0x4A)
Therm3 = DS18X20(ow_bus, 0x28, 0xFF, 0x0B, 0xC2, 0x53, 0x14, 0x01, 0x10)
Therm4 = DS18X20(ow_bus, 0x28, 0xFF, 0x4F, 0x9E, 0x53, 0x14, 0x01, 0x2C)
the code stops here, Therm1 is line 60 with:
Traceback (most recent call last):
File "code.py", line 60, in <module>
TypeError: function takes 3 positional arguments but 10 were given
I want to use the sensor addresses so i make sure i'm reading the correct one
while True:
print('Temperature: {0:0.3f}C'.format(Therm1.temperature))
print('Temperature: {0:0.3f}C'.format(Therm2.temperature))
print('Temperature: {0:0.3f}C'.format(Therm3.temperature))
main meteor
I'm not sure why you are giving all those numbers to the calls. It should just be the bus object and the sensor address.
Therm1 = DS18X20(ow_bus, <address>)
I just copied it from what I was using for the arduino, I'll try and find the address, Thank you
main meteor
It looks like the canonical approach is to do something like ```python
sensor_addresses = ow_bus.scan()
sensors = []
for sensor_address in sensor_addresses:
sensors.append(DS18X20(ow_bus, sensor_address))
What I don't know offhand is how the addresses are expressed in CircuitPython, but you could just run something like ```python
print(ow_bus.scan()[0])
Looks like they're byte lists, so if you wanted to use explicit addresses, you could probably do something like ```python
Therm1 = DS18X20(ow_bus, [0x28, 0xFF, 0x01, 0xCD, 0x53, 0x14, 0x01, 0x37])
I was trying to follow the example from https://learn.adafruit.com/using-ds18b20-temperature-sensor-with-circuitpython/circuitpython and in place of ow_bus.scan()[0] us my address.
I will try that now
now I get:
Traceback (most recent call last):
File "code.py", line 60, in <module>
File "adafruit_ds18x20.py", line 48, in init
AttributeError: 'list' object has no attribute 'family_code'
main meteor
looks at more source code
I was wrong, it's not just a list of bytes, it appears to be a OneWireAddress object
Really guessing here, but maybe something like ```python
from adafruit_onewire.bus import OneWireBus, OneWireAddress
Therm1 = DS18X20(ow_bus, OneWireAddress([0x28, 0xFF, 0x01, 0xCD, 0x53, 0x14, 0x01, 0x37]))
THANK YOU!!!! I made it past that part of the code!! I will try and figure out how to print the temps now.. I may be back
tidal kiln
you could do something like:
import board
from adafruit_onewire.bus import OneWireBus
from adafruit_ds18x20 import DS18X20
ow_bus = OneWireBus(board.D5)
ow_addresses = ow_bus.scan()
Therm1 = DS18x20(ow_bus, ow_addresses[0])
Therm2 = DS18x20(ow_bus, ow_addresses[1])
Therm3= DS18x20(ow_bus, ow_addresses[2])
Therm4= DS18x20(ow_bus, ow_addresses[3])
unless you actually know the 64 bit rom code for each sensor
solar whale
OK -- well - the espressif board works well! I'll go back the Huzzah32 later today and try it.
solar whale
nice -- I posted some stuff to the PR -- ping is broken...
meager fog
probably 😃 im doing more intense sockets stuff instead
solar whale
but lots working well!
meager fog
ping was a bit of a throwaway function
solar whale
having a funny issue with connecting after reset -- always takes 2 tries for me -- I'll look deeper into it. not a big problem, but annoying...
solar whale
ok -- good to know -- so just gpio0 is "optional"
meager fog
yeah
solar whale
Great -- Thanks for getting this out for testing
meager fog
yeah you can go pretty fast with SPI
solar whale
My dog is desperate for a walk -- back later!
meager fog
🐶
prime grove
while you're here @meager fog , should I add a pull request to add my patch for a higher speed I2C option to your nRF52 feathers (753Khz), or do you not want to support such a "hack"?
slender iron
@prime grove PRs are always welcome. I suggest PRing what you have now for early feedback. Don't put more time in until we OK the approach
prime grove
ok
prime grove
got it - thanks
manic glacierBOT
solar whale
@meager fog It is now working on the Huzzah32 with a feather_m4_express -- I did have t o pass a pin for GPIO0 to the code, but I just left it disconncected. It would not accpet None for the pin since it trues to set it as an output. Otherwise working well.
meager fog
yeah
solar whale
did you write the code for the ESP32? NINA_W102.bin?
or in either case do you have a link to it?
solar whale
thanks!
meager fog
i commited my minor change
umbral dagger
I'm glad we did that CP cheatsheet... it's nice having things in ne place. I'm making use of it today 😃
meager fog
yes!
manic glacierBOT
solar whale
@meager fog just for fun -- I cloned the nina-fw repo and did make then make firmware it built an image that seems to work! Is there anything else needed to do? when I do a byte compare of my binary with the one you provided yesterday, they have lots of differences. Was that version with your latest commits? Just curious -- nice to be able to reproduce things...
lime trellis
@umbral dagger mind linking to said cheatsheet? 😃
meager fog
@solar whale i dont know why it doesnt bytecompare
maybe ESP IDF version change?
:/
i had a lot of trouble compiling it
solar whale
or I may have a different ESP tootchain commit -- mine is from mircropython
umbral dagger
@lime trellis https://github.com/adafruit/awesome-circuitpython/blob/master/cheatsheet/CircuitPython_Cheatsheet.md
solar whale
seems to work, so I won't worry too much 😉 just want to make sure I did not miss any steps/
lime trellis
@umbral dagger thanks 😃
manic glacierBOT
pastel panther
I ❤ that cheatsheet
idle owl
<@&356864093652516868> Here is the notes doc for tomorrow's Weekly. Feel free to add your hug reports and status updates! https://docs.google.com/document/d/1lN3bcPqdNaL3vFCIUMcrCrJkbvyWuIBnvWpR1TqVOOU/edit?usp=sharing
marble hornet
@idle owl are you taking over for tannewt in the meetings?
idle owl
@marble hornet We're both running the meetings. Typically every other week.
raven canopy
simplified math re-factor, feeding 1MHz in:
>>> for i in range(1000):
... values.append(freq.value)
... time.sleep((freq.capture_period / 1000))
...
>>> min_value = min(values)
>>> max_value = max(values)
>>> min_value
999800
>>> max_value
1067000
>>>
6% max variation is an improvement. still think we can do better. 🔢 ⏲
marble hornet
@slender iron I'm working on a touch screen keyboard, python side, think that the terminal could be run above a certain area and the keyboard could run below it ?
exotic pumice
protip y'all: if you update the linux kernel you have to reboot before ttyACM0 will come back. I spent hours trying to reflash the bootloader and that was the only problem
raven canopy
protip #2: if you give advice in a guide to be careful of "auto continue" breakpoint features when dealing with time-sensitive functions...remember it. fought my by-hand math comparison to function results for a week...breakpoint was the sole source of huge variations. 😄
raven canopy
yeah. realized it this morning. desk, meet head. 😄
@exotic pumice from what i remember off the top of my head, the biggest effect is sleep[walking]. may also play into periphs automatically calling for a specific source (GCLK_EIC, for instance).
exotic pumice
hmm
setting the ondemand bit makes my whole device lock up, and that's the only difference in my oscctrl and yours
is there another place I should look other than oscctrl for my clock issues?
raven canopy
which clock? DFLL?
exotic pumice
yeah
raven canopy
hmm.
exotic pumice
actually, there's a chance there's something different in one of the subsections of oscctrl
but not the dfll part
raven canopy
i'm not seeing anything in the latest errata. trying to see if that register is enable-protected, since DFLL is started automatically.
exotic pumice
oh nevermind
I must've messed up my diff command or something
1 sec
oh nevermind the nevermind
I was like hang on, DFLLCTRLA is coming up different! (that's where ondemand is)
so yeah
I should probably do homework now since I wasted most of the day on this, let me know if you think of anything
raven canopy
will do! have fun with hw. 😪
exotic pumice
oh I have 1 more idea to try
I thought maybe setting the gclk divider to 0 would do something because we had to set dfllmul to 0
raven canopy
@exotic pumice from the sheet for DFFLCTRLA (why didn't i go there first):
If On Demand is set, the DFLL will only be running when requested by a peripheral and enabled
(DFLLTRLA. ENABLE=1). If there is no peripheral requesting the DFLL’s clock source, the DFLL will be in
a disabled state.
make sure its called as a source?
exotic pumice
I have it unset
you have it set
on second thought, dividing by 0 is never a good thing
raven canopy
disabled here, and nothing happens with DFLL in clock_init since its auto-enabled on reset. https://github.com/adafruit/circuitpython/blob/master/ports/atmel-samd/asf4_conf/samd51/hpl_oscctrl_config.h#L271
and yeah, please don't implode the earth dividing by zero. 🚫
exotic pumice
well pycortexmdebug disagrees