circuitpython-dev

[craggy nacelle]

Hopefully a quick question, here: Is Circuit Python based on a paticular version of Python? like 2.7 or 3.x?

[solar whale]

@craggy nacelle it is based in Python 3

[craggy nacelle]

thanks

[manic glacier]

dhalbert

[adafruit/circuitpython] Issue opened: #1027 builtinmodule\.SomeClass\.some\_instance\_property mistakenly calls getter for the property

This will generate a hard fault:

import analogio
analogio.AnalogIn.value

Similarly true for storage.VfsFat.label, touchio.TouchIn.value, etc.

The problem is that instead of returning a property object, the reference to the property actually calls the get function for the property, passing in self=0x0.

Some things don't crash because they actually ignore the self value, e.g. microcontroller.Processor.temperature, but that actually returns the temperature, which i...

[tulip sleet]

@craggy nacelle 3.4, specifically, but it's not complete 3.4.

[craggy nacelle]

Okay, Thanks @tulip sleet

[abstract pawn]

How do I get the mcp9808 library onto my Feather M0 Express? I tried installing the CircuitPython Library Bundle but I must be doing it wrong because I keep getting this: ">>> import adafruit_mcp9808
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: no module named 'adafruit_mcp9808'"

[tidal kiln]

@abstract pawn how did you install the bundle?

[thorny bear]

this might be a better place to post this: I'm trying to get a ili9341 display working on a Metro Express in CircuitPython. I'm able to print text following this: https://learn.adafruit.com/micropython-displays-drawing-text/overview however the text is VERY small. Does anyone know how to make the text bigger?

I'm currently using
bf = bitmapfont.BitmapFont(240, 320, display.pixel)
bf.init()

bf.text('Hello, World!', 0, 0, color565(255,0,255))
to print the string.

[abstract pawn]

@tidal kiln I dragged the "libraries" folder onto CIRCUITPY. The instructions said there would be a "lib" folder but there wasn't so I tried "libraries" Do I have to rename it or what?

[tidal kiln]

yep. it needs to be called lib.

[abstract pawn]

but is that the right folder?

[tidal kiln]

what did you download that had something called libraries in it?

[abstract pawn]

Adafruit_CircuitPython_Bundle-master.zip

[tidal kiln]

ah. wrong zip. go here instead:
https://github.com/adafruit/Adafruit_CircuitPython_Bundle/releases

[abstract pawn]

OK, so I downloaded "adafruit-circuitpython-bundle-3.x-mpy-20180714" and unzipped it and inside there is a folder called "libraries" No "lib"

Never mind

There is another folder NOT inside called "lib"

[tidal kiln]

that's the one you want

[abstract pawn]

Argh! It won't let me put it on CIRCUITPY.

I will try and move its contents into the existing lib

[tidal kiln]

is it acting like it's read only?

it = CIRCUITPY

[abstract pawn]

will it might be but it let me copy into the lib folder.

YAY!

Thanks for your help.

It would probably be good if somebody updated the guide with the new URL...

[tidal kiln]

were you following this?
https://learn.adafruit.com/welcome-to-circuitpython/circuitpython-libraries

[thorny bear]

@tidal kiln if you have any time once you get Gordie up and running, do you think you could help with my text issue?

[tidal kiln]

@thorny bear i'm not sure what the state of support for that is in circuitpython....let me check....

[thorny bear]

awesome, thank you!

https://learn.adafruit.com/micropython-hardware-ili9341-tft-and-featherwing/circuitpython

That's what sent me to the first link if that helps

I can do everything in that tutorial - fills rectangles etc... but the text font is freakin tiny - presumably because it's made for the charlieplexed leds... if there was a way to make the font file bigger....

font5x8.bin... that's the guy...

If I could make a font10x16 for example, I think I'd be fine...

@tidal kiln not sure if that's helpful or not, but it does seem like making a new font file would be the easiest path to done-ness.

[abstract pawn]

@tidal kiln DOH! Somehow I got onto the CircuitPlayground Express page.

[tidal kiln]

@abstract pawn can you link to what page? if there's a stale link, we should fix it.
but it looks like the CPX guide just mirrors that same page:
https://learn.adafruit.com/adafruit-circuit-playground-express/circuitpython-libraries

[abstract pawn]

That's the one.
"You can grab the latest Adafruit CircuitPython 2.x Bundle release by clicking this button:

If you need another version, you can also visit the bundle release page which will let you select exactly what version you're looking for, as well as information about changes."
I needed another version (3) so I clicked that link instead of the huge green button.

Nope

I must have done something else because that link does go to the right place.

[tidal kiln]

if you find it again, post it here, we'll take a look

[abstract pawn]

I think I downloaded this one instead of 3.x :
adafruit-circuitpython-bundle-py-20180714.zip

Nope. Again. This is what I downloaded:
https://codeload.github.com/adafruit/Adafruit_CircuitPython_Bundle/zip/master

Not sure how I got there.

[tidal kiln]

@thorny bear how were you drawing text?

[thorny bear]

I'll repost 1 sec...

import board
import busio
import digitalio
import bitmapfont

spi = busio.SPI(clock=board.SCK, MOSI=board.MOSI, MISO=board.MISO)

For the Metro

cs = digitalio.DigitalInOut(board.D10)
dc = digitalio.DigitalInOut(board.D9)

from adafruit_rgb_display import ili9341, color565
display = ili9341.ILI9341(spi, cs=cs, dc=dc, width=240, height=320)

display.fill(0)

bf = bitmapfont.BitmapFont(240, 320, display.pixel)
bf.init()

bf.text('Hello, World!', 0, 0, color565(255,0,255))

[tidal kiln]

how did you get bitmapfont to load?

[thorny bear]

ah! so there's some kinda error like u....something won't load?

is that what you hit?

ustruct...

https://github.com/siddacious/Adafruit_CircuitPython_MPL3115A2/commit/93216070373d682d56cfb8818670b0be78a6fa0e

[tidal kiln]

yep. i think maybe this stuff hasn't been updated for CP yet.

[thorny bear]

I did that and it started working.

which is great... if you're an ant

[tidal kiln]

ah. so you edited the .py file in the library and changed it to use struct?

[thorny bear]

well I did it like in the fix... try the one and if that doesn't work use the other but basically, yeah

+try:

• import ustruct as struct
  +except ImportError:
• import struct

[tidal kiln]

cool that even worked. but i think you're just working in an area that's in need of some work.

[thorny bear]

fair enough... in lieu of that - do you know how to create a different font file?

[tidal kiln]

i don't. sorry.

[thorny bear]

:/

hmm ok.

I tried a few searches for how to create bin files... but as you can probably guess, google thought I wanted to rip a cd.

there is a fonttobin.py that was included... but it makes no sense at all to me

FONT = bytes((
0x00, 0x00, 0x00, 0x00, 0x00,
0x3E, 0x5B, 0x4F, 0x5B, 0x3E,
0x3E, 0x6B, 0x4F, 0x6B, 0x3E,
(cut out a LOT of ... whatever that is...)

if name == 'main':
with open('font5x8.bin', 'wb') as outfile:
# Write a byte each for the character width, character height.
outfile.write(bytes((5, 8)))
# Now write all of the font character bytes.
for font_byte in FONT:
outfile.write(font_byte.to_bytes(1, 'big'))

If I could just have it write 4 pixels for every 1 pixel, that would probably do it

[stuck elbow]

better do the scaling on the other end

where it draws the pixels

[thorny bear]

@stuck elbow I'm listening... how should I do that?

[tidal kiln]

ah.... @stuck elbow is here. excellent. he can answer this way better than i can.

[stuck elbow]

@thorny bear it happens here: https://github.com/adafruit/micropython-adafruit-bitmap-font/blob/master/bitmapfont.py#L48-L56

so if you replace that self._pixel call with four calls, with the coordinates doubled and shifted by 1 pixel, it should get you twice as large letters

[thorny bear]

reading...

so, something like:
self._pixel(x + char_x, y + char_y, *args, **kwargs)
self._pixel(x + 1 + char_x, y + 1 + char_y, *args, **kwargs)
?

adding it in after 56

[stark wolf]

Has anyone used the RFM69 or RFM9x based radio boards with CP? Looks like the support is pretty basic but I'm curious if anyone has gotten them working well at a good distance.

[thorny bear]

ah just saw my fault there

that's why the 4 calls...

[stuck elbow]

I would make a function like def _pixel4(x, y, *args, **kwargs): that does self._pixel(x * 2, y * 2, *args, **kwargs) self.pixel(x * 2 +1, y *2, *args, **kwargs) etc. and call that instead

[opaque thicket]

So I recently found that the original trinket could hold/play a small amount of audio. (Source: https://learn.adafruit.com/trinket-audio-player/overview) Can we do something similar with the trinket m0?

[stuck elbow]

you probably also need to amend the width and height though

[thorny bear]

Ok... and you're saying to do that in bitmapfont yes?

[solar whale]

@stark wolf I have both RFM69 and RFM9x working with CP. I have not done a lot of range testing, The RFM69 is working over a distance of about 50 feet from outside to an inside room.

[stuck elbow]

@opaque thicket you can play WAV files with the audioio module, you just have to compile your version of firmware to include it (it didn't fit in the default firmware, but it will fit if you remove some other module you are not using)

[opaque thicket]

@stuck elbow - Hey, thanks! I appreciate the input! That'll get me started!

[stuck elbow]

you modify what gets included by editing thempconfigport.h file in your port directory

[stark wolf]

@solar whale thank you. I might hit you up for more info later.

[solar whale]

Thats fine -- glad to help.

[thorny bear]

@stuck elbow Curious as to why you suggest to multiply by 2 AND have the plus one...

[stuck elbow]

@thorny bear you need to multiply by 2 to make room for the extra 3 pixels

[thorny bear]

so like this:
def pixel4(x, y, *args, **kwargs):
self._pixel(x * 2, y * 2, *args, **kwargs)
self._pixel(x * 2 +1, y *2, *args, **kwargs)
self._pixel(x * 2 +1, y *2 + 1, *args, **kwargs)
self._pixel(x * 2 , y *2 + 1, *args, **kwargs)
?

[stuck elbow]

basically you start with this:

123
456

then you multiply and you get:

1.2.3.
......
4.5.6.
......

and then you add the extra pixels and you get:

112233
112233
445566
445566

yes

[thorny bear]

ok cool. I'll give it a shot.. thanks!

yeah that broke. 😃

checking to see why...

@stuck elbow it says that self isn't defined....

def _pixel4(x, y, *args, **kwargs):
    self._pixel(x * 2, y * 2, *args, **kwargs)
    self._pixel(x * 2 +1, y *2, *args, **kwargs)
    self._pixel(x * 2 +1, y *2 + 1, *args, **kwargs)
    self._pixel(x * 2 , y *2 + 1, *args, **kwargs)

[stuck elbow]

sorry, first argument should be self

def _pixel4(self, x, y...

[thorny bear]

got it... retrying

well, I asked for doubled and doubled I have...

[stuck elbow]

you can triple and quadruple in a similar way

probably use a loop, not copy the pixel calls

[thorny bear]

was going to ask if there's a .75 option.

[stuck elbow]

that would be tricky

[thorny bear]

but I feel like that might not be "on the menu"

yeah

[stuck elbow]

also the result would be blurry

[thorny bear]

right

[stuck elbow]

you can use a smaller font and double it

[thorny bear]

hehe wait a sec.... that was my question in the first place...

Is it possible to just use a different font?

like this one is 5x8, but if I had one that was, say 9x12, that'd be about perfect

[stuck elbow]

of course those .bin files have been generated somehow

[thorny bear]

yeah. that seems like a much cleaner way to do it... any idea how though?

[stuck elbow]

let me quickly try something

[thorny bear]

my google searches for creating .bin files went straight to cd-burning land... ok great...

[stuck elbow]

@thorny bear can you try this file?

[thorny bear]

hit me

[thorny bear]

cool I'll find where to load it and let you know what happens shortly...

[stuck elbow]

I generated it with this code:

import struct
import os
os.environ['SDL_VIDEODRIVER'] = 'dummy'
import pygame
pygame.display.init()
pygame.font.init()
pygame.display.set_mode((1,1))

font = pygame.font.Font("pf_ronda_seven.ttf", 4)
width, height = font.size("X")
surface = pygame.Surface((width, height))
with open("pf_ronda_seven.bin", "wb") as f:
    f.write(bytes((width, height)))
    for c in range(256):
        try:
            surface.blit(
                font.render(chr(c), False, (255, 255, 255), (0, 0, 0)),
                (0, 0),
            )
        except pygame.error:
            pass
        for x in range(width):
            byte = 0
            for y in range(height):
                pixel = surface.get_at((x, y))[0]
                byte <<= 1
                byte |= bool(pixel)
            f.write(bytes(byte,))

[meager fog]

@opaque thicket you can but only really in arduino, not enough space on trinket m0 for wave and cpy audio

[stuck elbow]

from those fonts: http://p.yusukekamiyamane.com/fonts/

[opaque thicket]

@meager fog - thanks! I'm just looking to randomize some audio clips in a staples "easy" button

[stuck elbow]

however, looking at the code of bitmapfont, it only works with fonts that are 8 pixels high

[thorny bear]

@stuck elbow would that work on any install?...not sure I'm saying this right... are there any libraries or whatever that I'd need to run that locally?

[meager fog]

@opaque thicket yeah an itsym0 expres would be super easy BUT you can do it in arduino

it just kinda sux

[stuck elbow]

it requires pygame

[thorny bear]

ok

[meager fog]

@opaque thicket want the code

?

[opaque thicket]

@meager fog - yes please!

[opaque thicket]

@meager fog - Thanks so much!

[meager fog]

you'll need to convert the audio to 8 bit

here's a varied example

[manic glacier]

dhalbert

[adafruit/circuitpython] Pull request opened: #1028 do not call property if referenced by class, not object

Fixes #1027.

>>> import analogio
>>> analogio.AnalogIn.value   # this used to hang or (in 2.x) return an integer
<property>
>>> import board
>>> a0 = analogio.AnalogIn(board.A0)
>>> a0.value
27200

I should probably submit this upstream as well.

[stuck elbow]

@meager fog I have audioio working with cp on the trinket m0 — I just had to remove some other module to make space

[meager fog]

i tossed some convert.py thing that may do the job

@stuck elbow yeah but then you need space for the clips too

its such a struggle i think arduino may just be best for the gemma/trinket

its not the worst thing ever you just have to headerify your wav

[stuck elbow]

@meager fog you can mount an sd card :)

[thorny bear]

@stuck elbow runtime error: buffer too small...

I need to make it bigger than 8 pixels I take it

[stuck elbow]

@thorny bear I guess I guessed the format wrong

[thorny bear]

@stuck elbow The font format is a binary file with the following
# format:
# - 1 unsigned byte: font character width in pixels
# - 1 unsigned byte: font character height in pixels
# - x bytes: font data, in ASCII order covering all 255 characters.
# Each character should have a byte for each pixel column of
# data (i.e. a 5x8 font has 5 bytes per character).

[stuck elbow]

you may be better off with your own font drawing

that's what I did

[thorny bear]

ah.. ok

[stuck elbow]

hmm, except I did 256 characters

try this one

[thorny bear]

d/ling

buffer too small

I think we're hamstrung by the max 8px height, @stuck elbow

[stuck elbow]

that font is 8 pixel high

[thorny bear]

oh

File "code.py", line 20, in <module>
File "bitmapfont.py", line 74, in text
File "bitmapfont.py", line 57, in draw_char

[stuck elbow]

can you paste the complete traceback?

[thorny bear]

😄

def text(self, text, x, y, *args, **kwargs):
# Draw the specified text at the specified location.
for i in range(len(text)):
self.draw_char(text[i], x + (i * (self._font_width + 1)), y,
*args, **kwargs)

that's 71-75

[stuck elbow]

can you paste the complete text of the error you are getting?

use ``` to make it formatted

[thorny bear]

code.py output:
Traceback (most recent call last):
File "code.py", line 20, in <module>
File "bitmapfont.py", line 74, in text
File "bitmapfont.py", line 57, in draw_char
RuntimeError: buffer too small

that's all I got... (using mu)

oh.. looking up where to find logs...

one moment

sorry this is local logs that I found

[stuck elbow]

that's enough, thanks

[thorny bear]

ah ok

[stuck elbow]

hmm, line 57 is empty in https://github.com/adafruit/micropython-adafruit-bitmap-font/blob/master/bitmapfont.py#L57

[thorny bear]

self._font.seek(2 + (ord(ch) * self._font_width) + char_x)

line = ustruct.unpack('B', self._font.read(1))[0]

        line = struct.unpack('B', self._font.read(1))[0]
        # Go through each row in the column byte.
        for char_y in range(self._font_height):

this is 55 to 59

probably different line numbers due to my ustruct tomfoolery...

[stuck elbow]

hmm, so it reads an empty string from the file

probably the file is too small

[thorny bear]

do you want the original 5x8 font?

[stuck elbow]

it's in the repo, thanks

got it, I wrote to the file wrong

try this one

[thorny bear]

downloading...

well... no errors... but no output either

Just to make sure, @stuck elbow , I went back to the old font. it still works... changed back to the new one and no output

[stuck elbow]

yeah, the file is all zeros

you know what, it's 5am here, I shouldn't be writing any code

[thorny bear]

lol

[stuck elbow]

I'm going to bed, I will fix it tomorrow

[thorny bear]

rgr that. thank you very much for trying!

[manic glacier]

evilboy1973

[adafruit/circuitpython] New star added

[manic glacier]

StephenHeathcote

[adafruit/circuitpython] Issue opened: #1029 mpfshell and rshell no longer work under V3\.0\.0 on ESP8266

I am a beginning user of circuit python but have some experience with micro python. Today I flashed a new Feather Huzzah with the latest V3.0.0 firmware. I was able to get to a repl prompt with screen without problems. I then tried to access the device with mpfshell but get an error on open

** Micropython File Shell v0.8.1, [e-mail] ** 
-- Running on Python 3.5 using PySerial 3.4 --

mpfs [/]> open ttyUSB0

('exception', b'', b'Traceback (most recent call last):\r\n  File...

[stuck elbow]

@thorny bear got it working

[lucid mesa]

excuse me, I want to ask, it means what kind and example how use it?

[mental marsh]

Good morning, what is the highest Brightness setting we can set in CP for the smart neopixels? Not floras..

[tulip sleet]

@mental marsh brightness ranges from 0.0 to 1.0. If you omit the argument, it defaults to 1.0. RGB values range from 0-255.

@lucid mesa that is exactly what you want to type. --filename_prefix and --library-location are option flag names, set to adafruit-cricuitpython-ds3231 and . respectively

[mental marsh]

Thanks @tulip sleet

[manic glacier]

dhalbert

[adafruit/circuitpython] New comment on issue #1029: mpfshell and rshell no longer work under V3\.0\.0 on ESP8266

Thanks for pointing this out. We maintain the https://github.com/adafruit/ampy program, which does some of things mpfshell and rshell do. If you'd like it to provide additional features that those programs provide, let us know in an issue.

The way this is typically handled is:

Replace

import ubinascii

with

try:
    import ubinascii
except ImportError:
    import binascii as ubinascii

We actually do it the other way round in our libraries, trying to import ...

[solar whale]

I just "discovered" a "feature" of the CRICKIT Feather board that is different from the CPX version. On the cpX version, when you power the CPX via its USB port (so you can load new code or use the REPL) the CPX is powered even if the CRICKIT is off. You can load code and use the CPX with the CRICKIT still off. This is not the case for the Feather CRICKIT.. It has the Feather board ENABLE connected to the CRICKIT power switch so if the switch is off, the Feather board regulator is also off. I think I like this, but it caught me by surprise since it is "different" than the CPX. Just a heads up for anyone else playing with it. I just tried it with a feather M0 and a Featehr M4 -- so far so good!

[lucid mesa]

thanks @tulip sleet for your respon , but can you give the example of the writer? because I feel confused.

[lucid mesa]

this is file library file -location wrong.

and it library folder DS3231

[thorny bear]

@stuck elbow Well it's making output of some sort... but that doesn't look like "hello world". 😃

[tulip sleet]

@solar whale, also double-clicking will double-click both boards on the Feather Crickit, and put both in UF2 bootloader mode. so you need to reset by single click after uploading a new CircuitPython or else the Crickit is not running the seesaw code.

[solar whale]

@tulip sleet ah - I noticed that I had to reset the CRICKIT, but it did not dawn on me why 😉 thanks

@tulip sleet just playing with the CRICKIT featehr board with a neopixel ring. I ralized taht the brighness setting had no effect and I see now that in the seesaw library , it is not implemented. (just a pass) I s this something fundamental about the seesaw or just waiting to be implemented?

or is that question for Deanm

@tulip sleet nevermind - I see it is listed as a TODO

they sure are bright at 1.0 😉

[tulip sleet]

hopefully with the pixelbuf stuff we can refactor all the different RGB impls so they share common code. There's a lot of duplicated code in the seesaw neopixel impl

[solar whale]

so - if it is being reworked , it is probably not worth implementing it like it is in the neopixel.py library.

If you think it'll be useful, I can implement it

[onyx hinge]

>>> 2**32
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: small int overflow
``` weird I thought in 3.x the express boards got long ints.  well, this is some unknown months old build, maybe I put something nonstandard on it.

[solar whale]

works on an M4 ```Adafruit CircuitPython 3.0.0 on 2018-07-09; Adafruit Feather M4 Express with samd51j19

2**32
4294967296

[onyx hinge]

.. still haven't got my library for ad9850 going reliably, there's some bug in the communication I just haven't quite fathomed yet. It uses not-quite-SPI and maybe I should just throw in the towel and bit bang it from CP. But that's so slow, sending a 40-bit frequency command one bit at a time. 😕

the long int part is related to getting the frequency command r ight, though I think that only affects values above 30MHz or so which are not in the range I'm experimenting with

[onyx hinge]

and of course the final missing piece was something simple, I had the wrong SPI polarity specified

now I just need a plan for accurate frequency arithmetic. It really needs more than single-precision floats and 30-bit ints

[solar whale]

@tulip sleet I implemented brightness for the seesaw similar to how it was done in neopixel.py -- it seems to work - should I go ahead and submit a PR to adafruit_circuitpython_seesaw or would you prefer to let this wait for the pixelbuf changes?

[manic glacier]

StephenHeathcote

[adafruit/circuitpython] New comment on issue #1029: mpfshell and rshell no longer work under V3\.0\.0 on ESP8266

Thanks for the response.

I will take a look at ampy. I was Just trying to use the tools I have allready learned. I’ll let you know if I have any feature requests.

I understand how to do the import to fix this in mpfshell. It’s a little trickier because mpfshell is building expressions as text strings on the host which it then passes to the target for execution. So I need to decide if it’s tidier to catch and handle the exception in the passed string or on the host. In any case if I can...

[lunar crown]

I am trying to do some realtime stuff on M4 Feather, using CircuitPython 3.0.0. I really need a timer and callback functions. Micropython seems to have what I need. I can't find anything about timers and callbacks in CircuitPython. Am I missing something, or is this missing in CircuitPython? I thought CircuitPython was a fork of Micropython.

[main meteor]

Ed Nisley's blog has some good thoughts on frequency arithmetic.

[torpid goblet]

@lunar crown# have you seen the time API under http://circuitpython.readthedocs.io/en/latest/shared-bindings/index.html#modules

[solar whale]

@tulip sleet update on the seesaw neopixel brightness -- It looks like it is not as simple as I had hoped to get it to wrok like it does in neopixel.py. My version works fine for my purposes, but can only change the brightness when a pixel is updated but not just by changing to brightness - that is because the seesaw neopixel driver does not keep a 'local" copy of the buffer. The update is done in setitem, not show. I suppose we could make a "local" copy of the buffer just like neopixel.py but that seems wasteful especially if pixelbuf will handle it better.

[manic glacier]

three-bits

[adafruit/circuitpython] Issue opened: #1030 Single file download for update \- Usability Enhancement

My usability enhancement issue for today is to reduce the effort and likelihood of mistakes by reducing the number of downloads to update a board.

As I understand, A user must -

1. Go to https://github.com/adafruit/circuitpython/releases and down a firmware build which requires two decisions, 1) type of board and 2) type of firmware.
2. Reflash the board. UF2 is really awesome.
3. Go to https://github.com/adafruit/Adafruit_CircuitPython_Bundle/releases , select the correctly file, down...

[stuck elbow]

@thorny bear I give up

[thorny bear]

😄

well I appreciate you trying'

[lunar crown]

Some useful time information, but no timers.

[stuck elbow]

@lunar crown CircuitPython doesn't support user timers

@lunar crown what are you trying to do? Maybe there is another way.

[manic glacier]

zencuke

[adafruit/circuitpython] Fork created: zencuke/circuitpython

[lunar crown]

I have a pin with a pulse width modulated on-time of period 1 second.

I would like to sample it at a regular interval of 50 to 1000 times per second, over the second period to measure the On time ratio. It is a very noisy signal with a lot of false transitions. I am using the time.monotonic() function for a very simple period measurement, which only works well when the signal is perfect. The code to eliminate all the false transitions in the time domain would be quite convoluted. If I had access to the timers and a callback function, as in the Adafruit docs on the pyboard/micropython, it would be much easier.

[torpid goblet]

@lunar crown we will have to wait for someone with more experience to chime in

[ruby lake]

time to make a couple of Crow's featherwings

[raven canopy]

PR is in for git library patching. would love comments from any and all (but tannewt has final say, of course 😄). https://github.com/adafruit/adabot/pull/11

[solar whale]

@raven canopy wow - you will put a lot of "helpers" out of work 😉

[raven canopy]

nah...they'll just get to spend more time helping with better stuff. that was kattni's response to me once on "automation". 😄

[solar whale]

withe the advent of the CRIKITS anf M4's I may have to have a "yard sale" . What a nice set of tools.

[sturdy furnace]

I'm trying to play a wav file on a CPX using the audioio library.
Other files (which are significantly shorter) play fine, but when I attempt to play this it fails with ValueError: Invalid format chunk size.
(it's the mario theme song here
Is this due to the file size?

[remote pike]

I think I broke my trinket m0. I updated to to circuitPython trinket m0-3.0.0.uf2. When I tried to go back to 2.0 I installed CPlay Express by accident. Now I can't get back into boot loader mode to fix. Any way I can get it back? Thank you.

[solar whale]

@remote pike It "should" go back to the bootloader regardless of what you loaded. Try double tapping the reset at various rates to see if you can get it to start the bootloader. What OS is the computer you are using to connect to it?

[slender iron]

@lunar crown take a look at PulseIn it'll measure time between edges for you

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on issue #1030: Single file download for update \- Usability Enhancement

Yup! This is a good idea. A website with pictures of all the boards would make it easier to filter every thing down. May not needed a single zip then.

We should also include up to date examples and demos.

tannewt

[adafruit/circuitpython] Issue closed: #1027 builtinmodule\.SomeClass\.some\_instance\_property mistakenly calls getter for the property

tannewt

[adafruit/circuitpython] Pull request closed: #1028 do not call property if referenced by class, not object

tannewt

[circuitpython:master] 2 new commits

6dfa527 do not call property if referenced by class, no... - dhalbert
6c5a152 Merge pull request #1028 from dhalbert/class-pr... - tannewt

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on issue #1026: Naming Conventions \- Usability Enhancement

I agree with you in general but think this issue is too general to be actionable. More specific suggestions are welcome, including PRs to improve ReadTheDocs.

tannewt

[adafruit/circuitpython] Issue closed: #1026 Naming Conventions \- Usability Enhancement

tannewt

[adafruit/circuitpython] New comment on issue #1025: ReadTheDocs structure issue\.

Good idea! Want to try changing it? Its here: https://github.com/adafruit/circuitpython/blob/master/shared-bindings/index.rst

GitHub guide is here: https://learn.adafruit.com/contribute-to-circuitpython-with-git-and-github

[bronze geyser]

I have a bad habit of bricking my itsy bitsy m0 express (itsy bitsy is stuck in code.py - lose ability to see CIRCUITPY drive on my Mac). How do you recommend getting a copy of the SPI flash erase .UF2 for the itsy bitsy m0? I see the source, but creating a make file with what i know about make would take quite a while. Ideally, there would be .UF2's for all CP boards? @tulip sleet

[stuck elbow]

I actually compiled a version of the circuitpython firmware that formats the flash — because the arduino thing didn't work for my custom boards

simply commented out a few ifs in the code that mounts the filesystem

[bronze geyser]

Thank you @stuck elbow . My challenge with your reply is I do not currently have the knowledge to know what lines to comment out. Then, I don't know the correct way to set up a make file to put together the right compiler and link settings. So I apologize I can't do the same as you. At least at this point.

[stuck elbow]

I think it's as simple as changing false to true in this line: https://github.com/adafruit/circuitpython/blob/master/main.c#L333

[remote pike]

@solar whale I'm using Vista. The only light on the Trinket is the green power led. I've been unable to get back to the boot loader. I've pressed the reset button like you recommended.

[bronze geyser]

@stuck elbow Ooh. your suggestion deleted code.py. This is what I wanted. Thank you.

[stuck elbow]

@bronze geyser note that this firmware will format the filesystem every time it boots

[bronze geyser]

@stuck elbow Yes. This is why I wish there was pre-compiled flash erase .uf2 for all CP boards. But, this works. And I can change back to false. Again, thank you for your help.

[tulip sleet]

@bronze geyser @stuck elbow An alternative is a way to get into safe mode: that will prevent the bad code.py from running so you can clean things up without losing everything in the filesystem: https://github.com/adafruit/circuitpython/issues/990

[bronze geyser]

@tulip sleet @stuck elbow re: going into safe mode. It would be great if I could triple click my itsy bitsy m0 and get into safe mode. The DotStar should give us info that it is in this state (the same way for example it goes to white when in REPL). Another UI access would be a ctl-<char> w/in REPL.

[stuck elbow]

or even a commmand you would run to reboot to safe mode

[bronze geyser]

@stuck elbow Makes sense to me to use a command. It amazes me how this team figures out "the best way." For example, I find how the DotStar is used to debug helpful.

[stuck elbow]

I wonder, has anybody ever used the fact that it blinks out the error message?

[bronze geyser]

@stuck elbow I did.

@stuck elbow What I liked about it was the visual grab of my attention as code.py was running. The light wasn't green or white. So something was wrong.

i can see if in mu editor and constantly updating this may not be an issue...but sometimes i use atom...sometimes mu...

[tulip sleet]

@stuck elbow Do you mean a host computer command or a REPL command to get to safe mode?

[stuck elbow]

I mean something like microcontroller.reset(safe_mode=True)

but of course that won't work if your code made it crash

[tulip sleet]

yes, i am trying to figure out one simple way to indicate going into safe mode.

[stuck elbow]

another possibility is a watchdog being fed by the python interpreter

[tulip sleet]

uf2 bootloader -could- detect triple click, but that doesn't help existing boards without a bootloader upgrade

could publish a 3.x set of cpy builds that are safe mode - these don't need to be revised regularly

[bronze geyser]

@stuck elbow my challenge is i can't stop code.py from running. It has some crappy code in it that hangs CP. I can get to ITSYBOOT, but not CIRCUITPY. From my perspective, it is something outside of CP directaly related to deleting code.py/.txt or main.py/.txt

[stuck elbow]

@bronze geyser what you can do manually right now, is to check some pin at the beginning of the code, and stop (raise an exception, for example) if it's pulled low or something like that

of course you would need to put that in every program you write

but you could put it in a library, so it would be just a single line

[bronze geyser]

@stuck elbow . Good idea. In the past, I have put a time.sleep(20) ...this way I have enough time to delete the code.py file.

[stuck elbow]

or press ctrl-c, that works too

and adds some thrill to testing :P

[bronze geyser]

@stuck elbow I am not in Mu...it's running headless...so not clear how to ctl-c.

[turbid radish]

Happy Monday fellow Pythonistas. Thanks to all who signed up for the "Python on Microcontrollers" newsletter last week - we got 12% more subs in one week! What, you don't know about the newsletter? Ad-free, spam-free look at Python news, happenings, and peekz? Sign up now at http://www.adafruitdaily.com to check out the excitement.

[bronze geyser]

after hitting my breakpoint in GDB jlink and then hit c, i do not see a way to do a monitor reset...i have to ctl-z? or is there something i'm missing? ```debug_test_hello.lto_priv.271 () at debug_test.c:34
34 return mp_const_none;
(gdb) c
Continuing.

[manic glacier]

dhalbert

[adafruit/circuitpython] Pull request opened: #1031 Merge 3\.0\.0 final bugfixes and changes to master

[tulip sleet]

@bronze geyser do "mon reset" before "c", or ctrl-C, "mon reset", "c"

you can ctrl-c in gdb to interrupt the program, or you can ctrl-c in the repl to stop the main.py/code.py

note that if you're connected via repl and you halt cpy in gdb, you'll eventually time out in the terminal program you're using to connect to the repl and have to reconnect

[bronze geyser]

@tulip sleet Thank you. I find myself killing the jlinkserver and some of the gdb goo in Activity Monitor (I'm on mac).

[tulip sleet]

yw. note that when you're in gdb, you can load a new version of the firmware with "load". Then "mon reset" and "c" will restart wit hthe new firmware. I do this a lot. Here is my .gdbinit file with some aliases for connecting to jlink, reloading, etc.

edit as you wish, rename it to .gdbinit, and put it in your homedir

[bronze geyser]

@tulip sleet thank you. Oooh...something new to learn!

[tulip sleet]

also i have shell aliases for starting up gdb, building, etc.

[simple pulsar]

Hello I have a problem on Circuit Playground Express. I have it running 3.0.0 and it runs code fine. I tried to plug into a rasperry pi and the pi does not see it as a memory stick

[stuck elbow]

@simple pulsar anything in dmesg?

[simple pulsar]

No, i'll check again

[stuck elbow]

also check what lsusb says

[simple pulsar]

I did go looking for a device in /dev/dsi

[stuck elbow]

the most common problem is using a usb cable without data lines...

[simple pulsar]

/dev/disk and didn't see anything in then, we tested a normal usb memory stick and that automatically mounted

i am using unknown usb cables - will test with mine to rule that in/out

[solar whale]

@simple pulsar on a raspberry pi the device should be /dev/ttyACM0

or at least that is to access the REPL -- does it show up there?

[simple pulsar]

Thanks, you were right, a cable with no data, power only. I knew they existed but never seen them and got given them by someone who should know better!

@solar whale thanks, that was the next thing to lookup, we are receiving data (in Koforidua, Ghana)

[raven canopy]

@tulip sleet @stuck elbow @bronze geyser I still like the idea of grounding a pin at startup to force safe mode. It works for headless, and doesn't require bootloader update or pre-thought to put in the ability to escape your program before it starts.

[stuck elbow]

@raven canopy the problem is you never know what that pin is connected to and whether it's normally pulled down

@raven canopy you get booby-trapped pins like on the esp8266

[raven canopy]

In the issue on the repo, Dan's suggestion of using SWDIO seems quite workable. Yes, ESP would prove the tricky one. As always. 😄

[stuck elbow]

swdio would work

as long as I can disable it for my custom boards

[raven canopy]

Should be able to handle it somehow in mpconfigport.

[manic glacier]

three-bits

[adafruit/circuitpython] New comment on issue #1025: ReadTheDocs structure issue\.

Yes, I'll figure out how to fix this and do a pull request. I should be a good way to learn CircuitPython workflow.

I didn't see how to assign this to my self in git hub.

[bronze geyser]

Wow. Pretty exciting. SWDIO pulled down worked. Thank you.

[manic glacier]

arturo182

[adafruit/circuitpython] Pull request opened: #1032 nrf: Move the UUID class from ubluepy to the shared bleio module

Also added a UUIDType enum-like class for determining UUID type.

[raven canopy]

@bronze geyser it did? Did you implement it in main.c? I don't think it should/would work "out of the box"... Here is the issue with discussion so far: https://github.com/adafruit/circuitpython/issues/990

[idle owl]

@slender iron Trying to run Adabot and getting a KeyError: login. Did the access token change?

[slender iron]

no. I ran it ok last night

[idle owl]

hmm

ok. That should mean I don't need to run it right now anyway, but still. Not great that I can't.

The repo was private, I think I do need to run Adabot after all.

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on issue #1003: nrf52832 does not respond to control\-C \- sometimes

@hathach Are you looking at this?

[tidal kiln]

hmmm. did MS just pull the plug on github?

[tidal kiln]

yep. looks like they're on it.

[timber mango]

@slender iron No pin?

[slender iron]

<@&356864093652516868> meeting in 20 minutes!

[drowsy geyser]

Huh. Yeah. GitHub is down. But I don't see anything internally about the status. Systems aren't really integrated yet.

[idle owl]

GitHub Unicorn! though

[slender iron]

perfect time to meet

[idle owl]

I've never gotten that fail page from them before now.

[slender iron]

https://docs.google.com/document/d/1bIDjlJlznlk6DPOSazykzn0b43hrQ7QXqFBYJ06G5fI/edit?usp=sharing

[cunning crypt]

Boo, I'm at work and can't hop in to the CP meeting.

[torpid goblet]

Hello, Just going to listen and learn. At work so I can't give full attention:(

[slender iron]

kk

[cunning crypt]

I'll just drop my Hug Reports and Status Updates here.

Hug Report: Group Hug as always. Lady Ada and John Park for the fun unboxing (Funboxing?) of Adabox 008. JP did a great presentation, and it was great to be able to chat with Lady Ada about things, both relevant to the box and otherwise.

[torpid goblet]

after action review

[umbral dagger]

ok.. I can hear... gotta love discord's arcanery

[timber mango]

discord-canary's pretty good, too. ;)

[drowsy geyser]

Hi all. I'm at work and in a team space, so won't be able to talk today. I'll just type anything that I need to say. 😃

[cunning crypt]

Status Update: I soldered so many TFTs. They are annoying because so few of them sit perfectly on the first try. I have 25ish battery packs to solder on, then I have to hot glue them in place, then I can put the actual programming on them and call them done!

[solar whale]

not hearing

[drowsy geyser]

I can hear ya.

[raven canopy]

I be hearing yous guys.

[stuck elbow]

I hear voices in my head

[drowsy geyser]

Ouch. Cold. 😃

Maybe @slender iron is connecting through GitHub's network....

[slender iron]

brb

[solar whale]

can hear on iphone and linux, but not on MAc

[drowsy geyser]

GitHub is back, btw.

[umbral dagger]

I can hear fine on mac

[idle owl]

Excellent!

[drowsy geyser]

I'm just lurking.

[timber mango]

My right channel keeps disappearing (not now) and this persists across boots (Linux Jessie amd64). I see Pulse audio stuff. I wonder if alsa is storing bad settings across cold boots.

[turbid radish]

I'm here today

[idle owl]

@drowsy geyser Will you have hug reports or status update?

[turbid radish]

alsa has issues storing settings across hour boundaries

[torpid goblet]

Just going to listen and learn. At work so I can't give full attention. responses will be slow:(

[drowsy geyser]

Hugs to everyone for working so hard all the time. No status (haven't done anything recently)

[idle owl]

Ok thanks 😃

[turbid radish]

k-eye-cad

😃

[stuck elbow]

fritzing ftw ;-)

[drowsy geyser]

Yeah, it is. I installed v5 on my Linux box and it took a while.

[raven canopy]

I like ladyada's "KeyKaiCad" from Thursday...

[tidal kiln]

i just say "GifCad"

[sweet wedge]

Hello, I'm looking for pinout of the Metro M0 Express SPI port. All I'm finding (based on the included link) is that it's on the 2X3 male header, but no specifics about the what pin is what. SPI pinout seems like fundamental info, so I must be missing something. For background, I'm trying to setup a remote BME temp/humidity sensor with two RMF9x breakout boards using CP on a Metro M0 and a Feather M0. https://learn.adafruit.com/adafruit-metro-m0-express-designed-for-circuitpython/pinouts

[wraith tiger]

I'm just lurking today.

[twin mica]

Just an idea for Scott, could pre-record the intro segment and playback. Might reduce some of the load 😃

[idle owl]

And he likes to change it up each week 😃

[turbid radish]

@sweet wedge for CircuitPython I take it

[twin mica]

hehe "where's the fun in that :-P"

[tidal kiln]

@sweet wedge you're just after the pinouts on the 2x3?

[turbid radish]

https://learn.adafruit.com/circuitpython-basics-i2c-and-spi/spi-devices

[sweet wedge]

@turbid radish Hi Mike ... yes, using CircuitPython. I already have the sensor and display working in CP, now trying to step it up with two RFM9x

@tidal kiln yes.

[drowsy geyser]

Ah, question, anybody know when the ARM GCC cross-compiler toolchain will be available for Ubuntu 18.04 LTS?

[tulip sleet]

@sweet wedge it's the same as on Arduino: http://forum.arduino.cc/index.php?action=dlattach;topic=84190.0;attach=181990

it is now

https://launchpad.net/~team-gcc-arm-embedded/+archive/ubuntu/ppa

[drowsy geyser]

@tulip sleet Ah, ok. I was looking at the non-PPA release. I'll go check that out. Thanks!

[tulip sleet]

i don't think they will update the release in the regular repos

[sweet wedge]

@tulip sleet ahh. Ok, thank you.

[torpid goblet]

I guess this would be a group hug for everyone for keeping their eyes on the 'Low floor' part of an educational project which has the potential to be low floor, high ceiling. It is really easy for developers to get wrapped up in the high ceiling stuff which is much more fun 😃

[timber mango]

haha very true.

[turbid radish]

We try to ensure educators and beginners to be able to get started with little friction

[prime flower]

weird mic is borked

hug report to scott - pypi and jerryn/dastels for finding issues with AIO Python library

[drowsy geyser]

AH! Happy birthday!

[errant grail]

Hugs to the CPy team for 3.0.0! Upgraded about a half-dozen projects without any issues so far. Nicely done! Hugs to the ADABOX team for an awesome and action-packed 008. JP’s unboxing video was very well done, professional and engaging. Special thanks to Ladyada for sharing her engineering thought processes and philosophical approach.

[twin mica]

happy b-day Scott!

[wraith tiger]

BTW, mu 1.0.0-rc1 is out.

[timber mango]

nice microphone audio, @quick remnant

[raven canopy]

hope to retain coveted "last but not least" spot. but, Dan can have it... 😄

[wraith tiger]

Getting older is better then the alternative.

[turbid radish]

Dan and I have the high end covered

[tulip sleet]

restarted discord - no effect 😦 was working before ; hugs to jerry, kattni et al who found the gpio pull issue at the last minute last week

hugs to thach for doing massive nrf merge to master

switched to ptt

hugs to arturo also for all the nrf

work

[timber mango]

push to talk

[onyx hinge]

just lurking and listening today. I have been working on code for AD9850 DDS frequency generator and hope to find time to ask some questions to bring it in line with Adafruit coding style.

[timber mango]

cricket

[errant grail]

He is wise beyond his years.

[onyx hinge]

oh wow you're 16? awesome

[timber mango]

MSB?

[tidal kiln]

0b100000 ?

[twin mica]

https://adafruitdaily.com/

[timber mango]

hug report: @turbid radish for spelling out PWM technique when using an analog panel meter, in a GUIDE.

https://learn.adafruit.com/trinket-powered-analog-meter-clock

(Trinket Powered Analog Meter Clock - learn GUIDE)

I'm very interested in PWM'ing the Adafruit 50 uA Analog panel meter (D'Arsonval-Weston movement):
refs: http://adafru.it/252
https://en.wikipedia.org/wiki/Galvanometer

[turbid radish]

Off & on, you're welcome

[stuck elbow]

group hug and congrats on 3.0

[timber mango]

holy smoke

[raven canopy]

@three-bits and @larryfast for looking at and bringing some documentation issues up. @HappyDay for their continued push on getting SAMD sleep working. @Dan Halbert and @tannewt for keeping up with the forums; I keep meaning to check more. Group hugz beyond all that!

Non-CP hug to the makers of Aloe Vera gel. Beaches have a knack for making life colorful, and slightly painful.

[timber mango]

synergy?

[prime flower]

mic workin yay

[turbid radish]

Yes, I've done guides off & on a small part time basis for > 4 years. I retired from the US government in April and now doing consulting for Adafruit full time. That includes guides.

[slender iron]

https://github.com/adafruit/Adafruit_CircuitPython_CircuitPlayground/issues/37

[errant grail]

@turbid radish Your Trinket book was my first introduction to the new generation of microcontrollers. Excellent. Thanks!

[turbid radish]

You're welcome - I have a new book on Circuit Playground Express out in September

I'll probably be at Maker Faire NYC in Sept

[prime flower]

see ya there mike 😄

[twin mica]

ooO chance to get Mike's autograf

[turbid radish]

oh my, @slender iron without a computer!?!

[plucky flint]

Evening folks... (from the UK, at least)... The release candidate for Mu is out. Details here: https://madewith.mu/mu/releases/2018/07/16/release_candidate-1.html Please test and all feedback most welcome. 😃

[idle owl]

@plucky flint Super exciting!

[wraith tiger]

@plucky flint I just pip3 installed it.

[turbid radish]

@plucky flint, congrats!!

[plucky flint]

The final 1.0 will be out on Friday... here's hoping GitHub doesn't go down in the middle of the release process again... 😃

[meager fog]

@plucky flint yayyy congrats!!!

[errant grail]

Other than converting a few existing projects, no new CPy work this past week – still working on PCBs and front panel designs for three Eurorack synth projects and learning about the key features of _Ki_Cad. As a result, next week will involve uploading gerbers to OSH Park and ordering a stock of newly filled plastic bags from DigiKey.

[plucky flint]

thanks folks. 🐮 ❤

[errant grail]

Yay KiCad 5.0!

[turbid radish]

k-eye-cad

[stuck elbow]

@umbral dagger I have some CP drivers for those e-ink displays

[umbral dagger]

I'm happy being called "dastels"

[torpid goblet]

I am also a dave. too many of us on the inter web i am threebits

[turbid radish]

yes, brightness isn't implemented yet 😦

[stuck elbow]

@umbral dagger if it helps: https://hackaday.io/project/100853-circuitpython-badge/log/139310-the-look-up-table-holds-the-secret

[tulip sleet]

https://forum.kicad.info/t/how-to-pronounce-the-word-kicad/4227/21 the video in the last post from the project leader says "kee-kad"

[umbral dagger]

@stuck elbow Cool. thanks!

[raven canopy]

Be gentle... 😄

[timber mango]

I'm starting to look at seesaw as the basis of a more bare-hardware project I want to do on the M0 (a simple text interpreter for SAMD21).

Old interpreter:

https://github.com/wa1tnr/bitwise_ops/tree/testing-aa/bitlab_dd

git visualization using gitk has way changed the way I look at code.

I have already compiled seesaw natively -- that is, outside of the Arduino IDE, using the 'eabi' gcc compiler.

I'm still considering CircuitPython and the Arduino IDE as source trees -- to modify them for my project.

CircuitPython is ahead in that race, since I already know I can compile it in Linux (without a virtual machine, thanks to @tulip sleet and his work on that GUIDE detailing the compilation of CircuitPython).

Still on my list is doing an interpreter in CircuitPython (possibly on the TX/RX pair (UART) to avoid collision with the REPL. Or maybe in the REPL. ;)
ref.
https://github.com/adafruit/seesaw.git
https://learn.adafruit.com/building-circuitpython

[twin mica]

-More 3d printed mounts for CRICKIT including special bits for LEGO bricks.
-Video about the things going live on Wednesday.
-More CAD files added to GitHub https://github.com/adafruit/Adafruit_CAD_Parts
-Next week working on gear mechanisms using crickit.

[quick remnant]

btw, the more you get advanced in git, you will find that everything keeps getting easier

[stuck elbow]

I prepared the prototypes for the CircuitPython badge to pass them on to the
PyCon.UK organizers next week at Europython, so that they can give them to
people interested in testing and developing for them. We decided we will
postpone their use on the conference to the next year.

This weekend I realized a way to make a minimal version of a standalone device
compatible the PewPew Featherwing, with just 4 components -- that will be cheap
enough to use in game-making workshops. PCBs are on order. I will need to write
a C module for CircuitPython similar to the gamepad module for driving a LED
matrix directly with the GPIO pins. (Project logs at https://hackaday.io/project/159733)

[raven canopy]

FrequencyIn Module: dormant this past week.

Little Leslie amp: still no movement, beyond random thoughts.

Adabot Library Patching: working script has been PR'd. Could definitely benefit from further testing before it gets used on the live repos.

[stuck elbow]

that is my update --^

[umbral dagger]

no

[onyx hinge]

I came in real late in the process so it always seemed real stable to me

(also I was using the better tested M0 boards I think)

[stuck elbow]

apart from some short times when it was completely broken, the master seemed to be pretty stable to me

[onyx hinge]

😊

[timber mango]

alpha (or pre-alpha) usually means 'this is gonna break' and beta usually means 'we want you to test this before it goes into wide release'.
release-candidate means 'why aren't we releasing this? Seems fine to us'
release means 'nobody barked at the last release candidate -- let's go!'

[stuck elbow]

yeah, esp8266 was broken all the time, but it was like that with 2.x too, so no change :)

[idle owl]

@timber mango That often goes along with it, however the more tangible definitions are that alpha is before all the features are added, beta is all features are in, and now we're taking on the bugs with everything, and RC is when we're pretty sure we got it all, but we need more heavy testing.

[onyx hinge]

I tend to discount the value of the vendor libraries and gravitate toward direct register stuff. But it depends on scale, as the chips get bigger and more complex it's a better idea to pick vendor libraries I think..

[stuck elbow]

sometimes you have silicon bugs that the vendor libraries handle, that can take quite a bit of hair pulling to do without them

[onyx hinge]

@slender iron do you see any directions to improve testing during 4.0?

is that running more reliably now?

yup

thanks

yeah, or you could use one of those "two or three feathers" board

yes I'd love to be able to do that locally

[timber mango]

http://adafru.it/3417 feather tripler

[onyx hinge]

audio's very choppy 😕

[timber mango]

jerry crickit

capacitive touch - binary blob thing? (M4)

[tidal kiln]

dropin out. gotta run. cheers all.

[umbral dagger]

I'm off.

[slender iron]

👋

[raven canopy]

🎁

[timber mango]

.oO(.. crickits) ..

[raven canopy]

Thanks everyone!! Hope your Monday is awesome possum!!

[stuck elbow]

thanks, bye

[errant grail]

Thanks!

[wraith tiger]

👋

[raven canopy]

I framed mine last week. Still need to hang it.

[timber mango]

They have ledges in old buildings that are used to hang art from, on a descending long rod/hook thing.

[raven canopy]

Yeah it can. Don't realize until you try to paint. 😡 light frames + 3m command strips FTW.

[twin mica]

cheers!

[timber mango]

https://www.architecturaldigest.com/story/display-art-without-hanging-it

[raven canopy]

I'm out too. Later taters!

[timber mango]

@slender iron
https://www.oldhouseonline.com/articles/how-to-hang-pictures-in-an-old-house
Like that. 'picture rails'

https://www.oldhouseonline.com/.image/c_limit%2Ccs_srgb%2Cfl_progressive%2Ch_2000%2Cq_auto:good%2Cw_2000/MTQ0NDY2OTU2NjM4MDM3MzA2/picture-hook-in-regency-style-from-house-of-antique-hardware.jpg

[raven canopy]

Functional crown molding of sorts...

[timber mango]

I've only seen it used once. They had some heavy pieces hung on that rail -- like 50 lb or more I think. ;)

I have old plaster and lath here so I haven't put a thing on the walls in 17 years. ;)

[meager fog]

@umbral dagger hey you round?

[umbral dagger]

@meager fog Yes

[meager fog]

do you own an android phone?

[umbral dagger]

Nope

[meager fog]

oi ok 😄

(or tablet)

[umbral dagger]

I had a nexus 7 once to test with but it seems to have been lost in a move

[meager fog]

haha eveone owns a Nexus 7 Somewhere

[umbral dagger]

Just iOS devices here

[meager fog]

would you be interested in this project for a guide/port

https://experiments.withgoogle.com/morse-switch

oops brbr

[umbral dagger]

I saw that go by in a feed earlier

[ruby lake]

yawn

[meager fog]

@umbral dagger perhaps you could do the code and then mike b can test i know he has an android phone

could be a teamup

[umbral dagger]

That would work. I'll dig into it.

CP on as small a board as it will fit on?

[meager fog]

i think cplay express actually would be good

because you could start with the two onboard buttons

then wire up external buttons if desired

[umbral dagger]

Excellent point

[meager fog]

ill put it in basecamp so you dont have to think about it 😃

[umbral dagger]

cool.

cap-touch might be nice, too.

[meager fog]

could show that as an alternate

ok will chat with mike and we'll figure out how to test

[timber mango]

tact switches wouldn't be good for morse. capacitive touch much better.

Heathkit put out a morse keyer using microswitches. Soon after, squeeze paddles became more often used (Bencher, I think -- I had an MFJ copy, iirc).
Squeeze paddles are a pair of SPST switches (momentary) that are physically arranged so you can squeeze the two, together (closing both circuits).
They're generally wired to a CW keyer with a 1/4" stereo plug, (Tip, Ring, Sleeve).

http://www.morseexpress.com/bencher/by2.jpg
That's the one I had (but not a Bencher -- MFJ, I think)

The set-screws set the 'action' (spring-tension isn't adjustable). Too wide of a gap between the contacts felt wrong; too narrow a gap caused extra dit (or dah) elements to be sent, unintentionally.

iambic operation: squeeze the paddles together, slightly timed differently.
If you hit the DAH paddle first, the keyer sends DAH-dit-DAH-dit .. until you release the paddles (saving you a lot of motion of your hand).
Reverse was also true - hit the dit paddle first, you get the opposite pattern.

iirc a right-handed person uses the thumb for dit and index finger for DAH.

[bronze geyser]

i'm in my c module extension using jlink when i have this line in my source: turn_on_eic_channel(pin_PA19.extint_channel, EIC_CONFIG_SENSE0_LOW_Val, EIC_HANDLER_WAKEUP); gdb freezes. Note: the m0 is NOT in standby. This means I am not able to test via gdb whether my interrupt handler is working using gdb. Is this because of interference w/ the usb driver? Any additional info/advice appreciated.

@tulip sleet Thanks very much for sharing .gbinit - very helpful. What a time saver!

[timber mango]

This blog entry suggests it's possible to debug interrupts with the J-Link:
http://blog.atollic.com/what-you-need-to-know-about-debugging-interrupts-and-exceptions-on-cortex-m-devices @bronze geyser

[manic glacier]

notro

[adafruit/circuitpython] Issue opened: #1033 os\.listdir fails on paths ending with a slash except '/'

Discovered while trying the ampy ls command which adds a trailing slash on the path.

Adafruit CircuitPython 3.0.0 on 2018-07-16; Adafruit Feather M0 Express with samd21g18
>>> import os
>>> os.listdir()
['.fseventsd', '.metadata_never_index', '.Trashes', 'boot_out.txt', 'ds1307slave.mpy', 'smbusslave.mpy', 'System Volume Information', 'tmp.txt', 'lib', 'boot.py', 'test_board_rtc.py', 'tmp.pytest']

>>> os.listdir('/')
['.fseventsd', '.metadata_never_index', '.Trashes', 'bo...

[torpid goblet]

@slender iron is the virtual python environment necessary for setting up Rosie? or can i skip that if nothing else is running on the machine?

[solar whale]

@tulip sleet updated the Bundle and the crickit.touch_n works as expected -- thanks

[raven canopy]

@bronze geyser yes, i would assume the EIC_Handler is locking out the USB interrupt handler. A further assumption is that the pin is already LOW once INTSET is turned on, so it is entering an endless loop. Are you sure you'll need the EIC_Handler (EIC_HANDLER_WAKEUP)? I have been under the impression this whole time that _WFI will respond to any interrupt on its own, so it shouldn't need the EIC_Handler...

re: "under the impression"....caveat is that docs can be wrong, of course. those datasheets are a lot of information, and humans make mistakes. 😄

@bronze geyser you can set a breakpoint on EIC_Handler(), to verify if that is the case. and then look at the backtrace. that is how i've attacked interrupt lockup debugging.

[solar whale]

@tulip sleet but this now fails -- it worked on a CPX a few weeks ago -- do I need something different on the Feather CRICKIT ```
Adafruit CircuitPython 3.0.0 on 2018-07-09; Adafruit Feather M4 Express with samd51j19

from busio import I2C
from adafruit_seesaw.seesaw import Seesaw
import board
i2c = I2C(board.SCL, board.SDA)
seesaw = Seesaw(i2c)
CAPTOUCH_THRESH = 500

seesaw.touch_read(0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/lib/adafruit_seesaw/seesaw.py", line 226, in touch_read
ValueError: Invalid touch pin
seesaw.touch_read(0)

[raven canopy]

@slender iron you mentioned PRs for adabot patches, earlier. not exactly how i set the script up, as you've most likely seen, since git am just makes the commit. i meant to ask in the PR (or before) if adabot has privs on all of the library repos. if she doesn't, git am will likely fail since she can't make commits.

[idle owl]

I still can't get Adabot to run. Failing on a KeyError: 'Login'

My env.sh is directly from Scott, iirc. So...

I don't know where to start with troubleshooting this.

[raven canopy]

looks around I didn't do it. I think. 🤔

[idle owl]

This was happening earlier.

And Scott ran it fine yesterday

so

It's likely me

I assume.

[raven canopy]

I assume it was me, and all I did was submit a PR. 😄 i bumped into this blog post on this subject...let me find it.

https://davidwalsh.name/impostor-syndrome

it's a good read. especially for someone like me who has never been "in the industry". 😆

[slender iron]

@torpid goblet not required but a good idea. why are you setting up rosie?

<@&356864093652516868> Here is the recording from today's meeting: https://youtu.be/xBWaIQLYbvQ

[idle owl]

Thanks @slender iron!

[slender iron]

thanks for doing the notes!

[manic glacier]

tannewt

[adafruit/circuitpython] Pull request closed: #1031 Merge 3\.0\.0 final bugfixes and changes to master

tannewt

[circuitpython:master] 2 new commits

a20ab40 Merge 3.0.0 final bugfixes and changes to master - dhalbert
617351a Merge pull request #1031 from dhalbert/3.0.0-to... - tannewt

[slender iron]

https://github.com/adafruit/Adafruit_CircuitPython_CircuitPlayground/issues/37

[torpid goblet]

@slender iron really just a learning experience. I am a bit of a testing geek:) I am curious how your system works.

[slender iron]

kk. not very well yet 😃

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

It seems weird to have a separate notion of type. Could we actually have two separate classes?

[tulip sleet]

@solar whale touch pin 0,1,2,3 was wrong. It was corrected to 4,5,6,7: https://github.com/adafruit/Adafruit_CircuitPython_seesaw/commit/7806f2e194cd03ed112b4ccc72c1f2c9c0ce97fb#diff-ef3f3169f2340e6a134d45e8f93e5d60 https://learn.adafruit.com/adafruit-crickit-creative-robotic-interactive-construction-kit/crickit-tour#4-x-capacitive-touch

this is true on both boards: they have the same Crickit pin numbers (except that the physical Drive pins for the Feather Crickit were reversed, not intentionally)

[tidal kiln]

@slender iron about to hook up a TSL2561 and maybe also a TSL2591 as a way to compare / test that CPX issue 37 math......anyone else already on this?

[raven canopy]

@slender iron so, don't worry about trying to work in PRs for adabot? I mean, the initial PR to put the patch into the patches directory will serve as the approval. but it requires diff reading...

[slender iron]

@tidal kiln not that I know of

@raven canopy ya lets try direct. its less work

[raven canopy]

👍

[idle owl]

Found 85 submodules in the bundle.
Traceback (most recent call last):
  File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/Users/kattni/repos/adabot/adabot/circuitpython_libraries.py", line 701, in <module>
    print("Running GitHub checks as " + github_user["login"])
KeyError: 'login'```

Adabot output.

[raven canopy]

@idle owl it may be GitHub. they're still in "recovery efforts". github_user is captured from a call to github.get("/user").json().

[idle owl]

Hmm.

I was assuming some issue with the access token.

[raven canopy]

i'm running some patch tests, so let me try the same call real quick.

[idle owl]

Ok

Thanks, @raven canopy

[tidal kiln]

@slender iron i'm finding only partial agreement, i'd suggest no code change. just keep the property as light and point out this a non-unit specific value:
http://circuitpython.readthedocs.io/en/3.x/docs/design_guide.html#sensor-properties-and-units
but maybe change the code comments to reflect this:
https://github.com/adafruit/Adafruit_CircuitPython_CircuitPlayground/blob/master/adafruit_circuitplayground/express.py#L66

[slender iron]

you can add a print so it prints whatever github user is

@tidal kiln sounds ok to me. can you follow up?

[raven canopy]

this is what i got, but i don't have the key installed:

{'documentation_url': 'https://developer.github.com/v3/users/#get-the-authenticated-user', 'message': 'Requires authentication'}

[tidal kiln]

@slender iron sure. i'll ask for more details on what they did also. if we do adopt something, it should be a new property called lux.

[raven canopy]

well...actually, i do have my OAuth key entered. hmm...

[slender iron]

probably outage related

[raven canopy]

and...this just appeared on the status page:

18:10 Central Daylight Time
All systems operational. Some users may not see audit logs, Pages builds, or webhooks from the affected time window. We are rebuilding search indices. We will reach out directly to users who saw additional impact. 

[tidal kiln]

kudos to those meeting notes with time stamps - used them to go back and hear Scott's comments about that issue 37. really useful!

[slender iron]

👍

[torpid goblet]

@slender iron did you create rosie or is it based on an upsteam project?

[slender iron]

@idle owl I'm trying adabot now

@torpid goblet I did

ok for me: ~/r/adabot (master|✔) $ source env.sh ~/r/adabot (master|✔) $ source .env/bin/activate.fish (.env) ~/r/adabot (master|✔) $ python3 -m adabot.circuitpython_libraries Found 501 repos to check. Found 85 submodules in the bundle. Running GitHub checks as adafruit-adabot Running Travis checks as adafruit-adabot

[idle owl]

I didn't source env.sh

It's past that point now in running.

[slender iron]

@bronze geyser related to your work: https://github.com/micropython/micropython/issues/3930

[timber mango]

I have the NeoPixel on Crickit CPX flashing in magenta (power sense -- wants a 5VDC supply on 2.1 mm barrel jack, to stop flashing):
https://github.com/wa1tnr/saw-saw/tree/testing-bb

[solar whale]

@tulip sleet nice ```Adafruit CircuitPython 3.0.0 on 2018-07-09; Adafruit Feather M4 Express with samd51j19

from busio import I2C
from adafruit_seesaw.seesaw import Seesaw
import board
i2c = I2C(board.SCL, board.SDA)
seesaw = Seesaw(i2c)
CAPTOUCH_THRESH = 500

seesaw.touch_read(4)
324
seesaw.touch_read(4)
875
seesaw.touch_read(5)
191

[stuck elbow]

https://oshpark.com/shared_projects/xNvQYFxd

it just had to be done

[solar whale]

no flash ?

[stuck elbow]

well, 4 components...

[solar whale]

very nice! amazing, in fact!

[tulip sleet]

@solar whale also, you can use the seesaw object from crickit, or use the touch objects in crickit:

>>> from adafruit_crickit import crickit
>>> ss = crickit.seesaw # useful for seesaw operations
>>> crickit.touch_1.threshold
427
>>> crickit.touch_1.threshold = 500
>>> from adafruit_crickit import crickit
>>> ss = crickit.seesaw
>>> crickit.touch_1.threshold
427
>>> crickit.touch_1.threshold = 500
>>> crickit.touch_1.raw_value
330

[manic glacier]

hathach

[adafruit/circuitpython] New comment on issue #1003: nrf52832 does not respond to control\-C \- sometimes

@tannewt ah no, I am resolving #1021 usb issue. Will look at this afterwards.

[manic glacier]

arturo182

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

@tannewt I'm not sure I understand, could you elaborate?

[slender iron]

hi @gentle bronze !

[gentle bronze]

hi @slender iron

[slender iron]

thanks for joining discord

we had a weekly meeting earlier you might want to listen to: https://youtu.be/xBWaIQLYbvQ

[indigo wedge]

Hi @gentle bronze 😃

Hey @slender iron could you explain a bit more in the review what you meant? 😃

[slender iron]

ah ya. will respond there

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

One class for the standard, short UUIDs and one for the long custom ones. That way we can check type with standard isinstance.

[slender iron]

@indigo wedge ☝ better?

[manic glacier]

arturo182

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

Oh like that, I'm not sure if that's the best idea, don't think I ever saw a library do that. If we did it that way then we would need a base class so the other two could inherit from it and we would need to know what kind of uuid we have before creating a class, like this:

if uuid_str.len == 36:
    uuid = UUID128(uuid_str)
else:
    uuid = UUID16(uuid_str)

If you check other frameworks, they just have one class with usually a type property:
https://infocenter.nordicsemi....

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

Most of those are C APIs which can't do duck typing. We don't need to do it just because bluepy does.

Ya, off the wire we'll need to do a length check, but the differences between the two will be clearer with two proper types.

• One is standard, 16bit and has a text description. AssignedName(0x1800, "Generic Access") Furthermore, instead of providing constants for the ints we can have modules for related names dynamically loaded.
• The other is custom, no description and may be der...

arturo182

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

I didn't do it cause bluepy does it that way, I just like it being a single class ;)
For the 16-bit uuids, it's not always that they have a text description, they can be custom too. Could you explain the dynamically loaded modules, I don't think I get it.
Also I'm not sure about you example, it shows same CustomUUID class for both 16 bit and 128bit.
What names do you propose for those classes?

I think I'm just having a hard time understanding your vision.

[bronze geyser]

@slender iron thank you for the link to the micropyhon proposal. You all are so amazing. @tulip sleet also was kind enough to think to send. It may seem overboard, but I am happily overwhelmed by the thoughtfulness folks on this channel have for each other.

[indigo wedge]

@solar whale You mentioned some time back that nrf52840 scan finds fewer devices, I found the issue, the scan API changed and in s140 the scan stops after finding a device so we have to manually continue it until timeout is reached 😃

[solar whale]

@indigo wedge nice -- that was nagging me.

[indigo wedge]

>>> len(s.scan(5000))
184

😄

Of course it's multiple entries for same device, but still better than before 😉

[ruby lake]

hm, how much of ASF4 is in the Adafruit_ASFCore library?

[manic glacier]

dhalbert

[adafruit/circuitpython] Issue opened: #1034 nrf: implement brownout detection if possible

atmel-samd uses ~2.7v as brownout limit. This is the lower operating limit for a number of external SPI flash chips.

See ports/atmel-samd/supervisor/port.c, which also includes logic for reporting previous brownout to startup logic so it will go into safe mode.

Also CIRCUITPY_CANARY_WORD is #if 0'd out here and should be enabled.

[raven canopy]

Hey @gentle bronze! Welcome to Discord. 👋

[gentle bronze]

thanks @raven canopy

[solar whale]

@gentle bronze Welcome -- and thanks for all the great work on the nrf52!!

[sharp rain]

Forgive the newb question I've only been tinkering w/ microcontrollers for a few weeks but... when we build CircuitPython UF2 file it's ~370KB, but my trinket only has 256KB of flash, so.. how does that work when the file is dragged onto the flash - is some magic happening to make space in memory or.. ??? 😖

[simple pulsar]

Hello. Has there been any update on https://github.com/adafruit/circuitpython/issues/231 since it was last updated? Is that fundamentally about bi-directional communication or does it apply to one way flows across serial over USB?

Or is it about blocking and waiting for user input? I'm just about to embark on some data flow from a Raspberry Pi -> CPX and was curious if i'm going to be able to do this - other way around is easy

[sharp rain]

@weary raven thanks for the pointer.. just found the UF2 source code for the SAMD on GitHub so the format uses 512 byte blocks to hold up to 256 bytes of flash data so that checks out 😃

[manic glacier]

dhalbert

[adafruit/circuitpython] Issue opened: #1035 nrf: implement audiobusio\.I2SOut

Use the I2S peripheral.

hathach

[adafruit/circuitpython] Pull request opened: #1036 Fix nrf52840 serial

• update tinyusb for wanted char
• move usb code into usb.c

dhalbert

[adafruit/circuitpython] Issue opened: #1037 nrf: implement audiobusio\.PDMIn

There's a separate PDM peripheral with a built-in decimation filter.

dhalbert

[adafruit/circuitpython] Issue opened: #1038 nrf: implement audioio\.AudioOut

The nRF52 chips don't have a DAC, so any audio output would need to be done using PWM.

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial

sorry there is a bit off issue, the current code will swallow the ctrl+c as well, hold on, I will fix it.

dhalbert

[adafruit/circuitpython] Issue opened: #1039 nrf: implement busio\.UART

dhalbert

[adafruit/circuitpython] Issue opened: #1040 nrf: microcontroller/Pin\.c does not handle pin claiming

See ports/atemel-samd/common-hal/microcontroller/Pin.c for existing implementation.

We want to be able to claim pins that are reserved for, e.g., status NeoPixels or DotStars

dhalbert

[adafruit/circuitpython] Issue opened: #1041 nrf: implement microcontroller\.Processor\.temperature

There is a TEMP peripheral to measure the on-chip temperature. Looks very easy to use: a register returns the temp in degrees C.

dhalbert

[adafruit/circuitpython] Issue opened: #1042 nrf: implement nvm\.ByteArray

Like the SAMD chips, there is no true EEPROM.

dhalbert

[adafruit/circuitpython] Issue opened: #1043 nrf: implement pulseio\.PulseIn

[meager fog]

@simple pulsar our current thoughts is to just allow people to create a new/separate USB-UART device

[manic glacier]

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial

should be OK now. I am not sure if the lib/utils/interrupt_char.c is OK to edit. So I add a separated interrupt_char.c with modification under nrf/ . It only need to tell the usb stack to trigger callback when receiving the Ctrl+C

[meager fog]

but we haven't started coding that up yet. we agree that there's no super-elegant way to do bi-directional comms unless you can be super-sure that there's no control/escape chars.

@gentle bronze hi thach! just saw you joined

[manic glacier]

dhalbert

[adafruit/circuitpython] New comment on issue #716: PulseIn not implemented for ESP8266 and NRF52

split off nrf52 issue into #1043.

[gentle bronze]

@meager fog yeah, I just joined in. Lots of stuffs is going on here 😄

[manic glacier]

dhalbert

[adafruit/circuitpython] Issue opened: #1044 nrf: implement pulseio\.PulseOut

dhalbert

[adafruit/circuitpython] Issue opened: #1045 nrf: implement rotaryio\.IncrementalEncoder

There is a QDEC (quadrature decoder) peripheral that does the work.

dhalbert

[adafruit/circuitpython] Issue opened: #1046 nrf: implement rtc\.RTC

There is an RTC peripheral that runs off the low-frequency clock.

arturo182

[adafruit/circuitpython] New comment on issue #1041: nrf: implement microcontroller\.Processor\.temperature

This is already done https://github.com/adafruit/circuitpython/blob/master/ports/nrf/common-hal/microcontroller/Processor.c#L36

sommersoft

[adafruit/circuitpython] New comment on issue #716: PulseIn not implemented for ESP8266

Closing since ESP8266 is fixed by #926, and nRF is split out.

Thanks @nickzoic!

sommersoft

[adafruit/circuitpython] Issue closed: #716 PulseIn not implemented for ESP8266

dhalbert

[adafruit/circuitpython] Issue opened: #1047 nrf: implement supervisor\.Runtime\.serial\_connected

RIght now nrf/common-hal/supervisor/Runtime.c always returns true.

arturo182

[adafruit/circuitpython] New comment on issue #616: I2C issue on NRF52 \(PCA10056 board\)

@jerryneedell could you retest this now that we use nRFx for I2C?

arturo182

[adafruit/circuitpython] New comment on issue #956: merge nrf52840 usbboot PCA10056 and feather\_nrf52840

Should we close this one?

arturo182

[adafruit/circuitpython] New comment on issue #1047: nrf: implement supervisor\.Runtime\.serial\_connected

Not when using USB: https://github.com/adafruit/circuitpython/blob/master/ports/nrf/supervisor/serial.c#L94 And for HW UART I'm not sure it's possible to detect it.

[meager fog]

@gentle bronze yeah it can get a little busy - but its great if you want to chat fast. i also come by and show off stuff im working on sometimes!

[manic glacier]

dhalbert

[adafruit/circuitpython] Issue opened: #1048 nrf: implement touchio\.TouchIn

The COMP (comparator) peripheral description says it does "Single-pin capacitive sensor support".

[gentle bronze]

@meager fog yeah, it is great to have all thing in one place :D.

[indigo wedge]

Dan is on a rampage 😄

[manic glacier]

dhalbert

[adafruit/circuitpython] New comment on issue #1009: USB HID

split this into Bluetooth and wired USB support?

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

#1021

dhalbert

[adafruit/circuitpython] Issue opened: #1049 nrf: SPI flash and QSPI flash support

As used on existing SAMD Express boards.

I don't see an explicit issue for this, but maybe I missed it.

[meager fog]

@indigo wedge between you, dan, and thach - this codebase is like a whirlwind!

[tulip sleet]

@gentle bronze Hi!

[indigo wedge]

@meager fog and now with all those Issues to address its gonna be even more dynamic ;)

[tulip sleet]

i was diff'ing the atmel-samd and nrf ports/ trees to see what was missing, and I think I finished 😃

[simple pulsar]

@meager fog Do you mean a new uart on some pins so you would have to wire it up to something? Having the USB cable in makes it very attractive for development to just chat over the existing cable. I haven't tried it yet but can input() be used if you are prepared to accept blocking?

[meager fog]

@simple pulsar you can do that right now - connect ftdi/console cable to RX/TX on the circuitpython board, then use busio to read and write byes

what we want to do is have it thru USB - more elegant but also more work

[manic glacier]

dhalbert

[adafruit/circuitpython] New comment on issue #1041: nrf: implement microcontroller\.Processor\.temperature

Ah, great! I only read the first line of that routine :)

dhalbert

[adafruit/circuitpython] Issue closed: #1041 nrf: implement microcontroller\.Processor\.temperature

hathach

[adafruit/circuitpython] New comment on issue #1049: nrf: SPI flash and QSPI flash support

note to myself: The flash chip is GD25Q16CTIGR right

dhalbert

[adafruit/circuitpython] New comment on issue #1047: nrf: implement supervisor\.Runtime\.serial\_connected

OK great, I only saw the first definition in that file.

dhalbert

[adafruit/circuitpython] Issue closed: #1047 nrf: implement supervisor\.Runtime\.serial\_connected

arturo182

[adafruit/circuitpython] New comment on issue #1049: nrf: SPI flash and QSPI flash support

Remember to use nRFx :D

[simple pulsar]

@meager fog thanks

[gentle bronze]

hi @merry turret , almost miss your hello message. Too many things are going on 😄

[tulip sleet]

@gentle bronze no problem, I missed your general one earlier 😃

it's not always this busy here

[prime flower]

@tulip sleet is SPIDevice msb first or lsb first?

[tulip sleet]

@prime flower MSB by default, but occ want other: https://github.com/adafruit/circuitpython/issues/775

[manic glacier]

arturo182

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

Please remove

arturo182

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

Please remove

arturo182

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

I don't think this ifdef is needed, I did the fix for having usb and SD co-exist and no extra code is needed here.

[idle owl]

Odd. I thought I had admin rights on Travis.

[manic glacier]

hathach

[adafruit/circuitpython] New comment on issue #1049: nrf: SPI flash and QSPI flash support

Will try to remember it :D. I went through the time when Nordic sdk upgrade requires massive amount of work for migration. So I often to write the code in its generic form. The new nrfx seems to do a great job :D

[idle owl]

@gentle bronze Welcome!

[covert oxide]

Hello, does Circuitpython support complex numbers? saw it as part of builtins module at goo.gl/JhBwkF, but i dont actually see it doing import. Is it OK I as this type of questions here, or is it best suited for the forums?

[idle owl]

@covert oxide This is an excellent place for that question. The forums would work as well. It's been a bit quiet here this morning, so be patient and someone will answer soon 😃

[onyx hinge]

@covert oxide I don't think support for complex numbers is included.

[tidal kiln]

Adafruit CircuitPython 3.0.0 on 2018-07-09; Adafruit ItsyBitsy M4 Express with samd51g19
>>> foo = complex(2,3)
>>> foo.real
2.0
>>> foo.imag
3.0
>>>  

@covert oxide ⬆ does that work?

[onyx hinge]

import cmath

[covert oxide]

I have a trinket, it does not work there

[idle owl]

Oh could be we removed it from the Trinket build to conserve space.

[onyx hinge]

from looking at the source, it appears the cmath module is disabled on all circuitpython builds and complex numbers themselves are enabled based on whether the BOARD_FLASH_SIZE > 192000 which I am guessing does not apply to trinket (?)

[tidal kiln]

Adafruit CircuitPython 3.0.0 on 2018-07-09; Adafruit Trinket M0 with samd21e18
>>> foo = complex(2,3)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'complex' is not defined
>>> 

[covert oxide]

that is what I see, yes

[onyx hinge]

If you wanted to build your own, you could probably enable complex type on trinket but you might have to disable something else

[covert oxide]

interesting, I think I will look into it, thank you all!

[onyx hinge]

in ports/atmel-samd/mpconfigport.h you'd start by simply removing the '#define MICROPY_PY_BUILTINS_COMPLEX (0)' line (it was around line 237 in my copy)

however that causes the flash to be too full

[covert oxide]

right, thank you, I will play around removing something and see if I can get it to work

[onyx hinge]

wow I am having to take a LOT of stuff out. complex numbers are surprisingly heavyweight

and trinket m0 is very full

[manic glacier]

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

the part when SD is enabled is currently handled inside the stack.
https://github.com/hathach/tinyusb/blob/develop/src/portable/nordic/nrf5x/hal_nrf5x.c#L178

Previously they are all inside in tusb hal, then recent Nordic sdk break non-SD api by introducing nrfx (SD API is more stable). But I think I will move it out of the stack, making the stack more generic. I will take this chance to do this

[onyx hinge]

.. removing builtin 'set' and 'help' allow complex type to be enabled for trinket m0, with 540 bytes of flash free.

[covert oxide]

wow, you are fast, thank you, I was going to remove neopixel_write

[manic glacier]

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

Plot all is planned here
https://github.com/hathach/tinyusb/blob/develop/src/portable/nordic/nrf5x/hal_nrf5x.c#L180

[onyx hinge]

removing help & neopixel_write doesn't seem to be enough

[idle owl]

@slender iron I forgot to add CircuitPython Librarians to the Pixie lib. Which I went back and did. And then ran Adabot again. Travis still says I don't have sufficient rights to enable this repo on Travis. Do I not have admin rights on Travis? Am I not supposed to?

[slender iron]

@idle owl wait a bit. permissions are cached

[idle owl]

Ok. That's what I was about to ask.

Will do.

[manic glacier]

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

@arturo182 do we define SOFTDEVICE_PRESENT when SD is selected, I couldn't find it within the makefile

[prime flower]

I'm converting a command (int) into a bytearray to be sent over spidevice but something isn't working, not sure where

command = ((0x01 << 7) | (1 << 6) | ((0 & 0x07) << 3))

cmd_array = bytearray(command) produces an empty bytearray

[onyx hinge]

brentr: bytarray(int) -> an array of that many zeros. bytearray([int]) -> a bytearray with 1 element, equal to that int

so e.g., try bytearray([192]) instead of bytearray(192)

[prime flower]

that works, thanks jepler

[manic glacier]

arturo182

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

It actually looks like we don't define it, it's defined usually in the Nordic SDK which we don't use. Should probably define it in the Makefile if SD is not empty, because even nRFx checks for it sometimes.

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

@arturo182 it uses throughout Nordic code, it is good idea to use it to detect SD existence as well. I think for peripheral that is shared with SD, nrfx will need that to detect the SD existed and enabled.

hathach

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

btw, could you brief me on how to run a simple ble script e.g advertising something. I will check if changes break anything when the SD is running.

arturo182

[adafruit/circuitpython] New comment on pull request #1036: Fix nrf52840 serial mentioned \#1021

For sure!
The simplest way I can think of to check if BLE works is:

import ubluepy
p = ubluepy.Peripheral()
p.advertise(device_name='Python')

After that you should be able to see a device named Python when scanning, I use https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp&hl=en to test it.

[indigo yoke]

Following the instructions at: https://circuitpython.readthedocs.io/en/latest/ports/nrf/README.html, make BOARD=pca10056

I get

david (master) nrf $ make BOARD=pca10056
Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.
../../py/nlrthumb.c: In function 'nlr_push':
../../py/nlrthumb.c:86:1: error: stack usage computation not supported for this target [-Werror]
}
^
cc1: all warnings being treated as errors
../../py/mkrules.mk:53: recipe for target 'build-pca10056-s140/py/nlrthumb.o' failed
make: *** [build-pca10056-s140/py/nlrthumb.o] Error 1

[indigo wedge]

@indigo yoke which arm gcc version are you using?

[indigo yoke]

david (master) nrf $ gcc --version
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609

[indigo wedge]

that's the wrong gcc, you need special gcc for atm microcontrollers, you can find it here https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads

[indigo yoke]

sorry, did you mean ?

david (master) nrf $ arm-none-eabi-gcc --version
arm-none-eabi-gcc (15:4.9.3+svn231177-1) 4.9.3 20150529 (prerelease)

I have been building C++ mbed examples for nRF52840-DK board ... but would prefer to run Python (+OpenThread) if possible

[tulip sleet]

@indigo yoke you can also install from this ppa:

https://launchpad.net/~team-gcc-arm-embedded/+archive/ubuntu/ppa

[indigo wedge]

I'm afraid, 4.9 might be too old, I've been using 5.4 and Travis builds with 7 I believe

[tulip sleet]

that ppa is at 7.3.1

we are using the version just behind that, and will switch to this one soon

[indigo wedge]

@indigo yoke I think you could get around this error by removing -fstack-usage from https://github.com/adafruit/circuitpython/blob/master/ports/nrf/Makefile#L65

[indigo yoke]

without updating toolchain + removing -fstack-usage, make BOARD=pca10056 yielded

david (master) nrf $ make BOARD=pca10056
Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.
Generating build-pca10056-s140/genhdr/mpversion.h
FREEZE freeze
drivers/bluetooth/ble_drv.c:115:1: error: missing braces around initializer [-Werror=missing-braces]
nrf_nvic_state_t nrf_nvic_state = {0};
^
drivers/bluetooth/ble_drv.c:115:1: error: (near initialization for 'nrf_nvic_state.__irq_masks') [-Werror=missing-braces]
cc1: all warnings being treated as errors
../../py/mkrules.mk:53: recipe for target 'build-pca10056-s140/drivers/bluetooth/ble_drv.o' failed
make: *** [build-pca10056-s140/drivers/bluetooth/ble_drv.o] Error 1

will update tools now

[idle owl]

Well that only took ages, but it worked and now it builds. Hooray!

[mental marsh]

Hey everyone, using CP on itsybitsy m4 with battery BACKPACK, is there a command or library to monitor the power remaining in the battery? I need to know when it needs charging since it will be hidden in the suit..

[idle owl]

You can check the voltage on the pin and when it gets below a given threshold, you know it's time to charge it. I'm not sure which pin because I've never worked with the backpack, but it should be the VBAT pin.

I can't remember the voltage ranges off the top of my head, but it shouldn't be too hard to find. It can get up to about 4.2V when fully charged, and drops to something when it's ready to be charged again.

[raven canopy]

3.7v would be my target for charge. You can go lower, but it comes with risks/effects.

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on issue #1038: nrf: implement audioio\.AudioOut

I think we can skip this. We just can throw an error on construction.

[errant grail]

@mental marsh Here are the battery level voltage thresholds that I've used in a few projects. Voltage isn't a very good capacity indicator, but this general case has worked okay for me.

[mental marsh]

Thank you everyone so much! Wouldnt i need to keep the current check code running in a loop and that would drain it faster?

Also what is the command to monitor voltage in CP?

[manic glacier]

arturo182

[adafruit/circuitpython] New comment on issue #1038: nrf: implement audioio\.AudioOut

I would actually like to have this at some point so maybe let's keep the issue open :)

tannewt

[adafruit/circuitpython] New comment on issue #956: merge nrf52840 usbboot PCA10056 and feather\_nrf52840

Yup!

tannewt

[adafruit/circuitpython] Issue closed: #956 merge nrf52840 usbboot PCA10056 and feather\_nrf52840

tannewt

[adafruit/circuitpython] New comment on issue #1009: USB HID

This is USB only. A BLE HID issue would be good too.

[errant grail]

@mental marsh Let's try this again. Here's code that's specific to monitoring battery voltage. Pin A0 is connected to the center of a resistive voltage divider made of two 100K resistors. The voltage divider measures the Vbat pin. The continuous current draw of the voltage divider is about 20uA, not a significant draw for my projects. ```

from analogio import AnalogIn
import board
from simpleio import map_range # for controller range

set up analog input pin with the 2:1 voltage divider

analog_in_pin = AnalogIn(board.A0)

print("Battery voltage: ", map_range(analog_in_pin.value, 0, 65535, 0, 6.6))

### Main Loop ### . . .

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on issue #1038: nrf: implement audioio\.AudioOut

Could we have a separate module for it since its not a DAC? Arduino merges the two together but I'd rather not.

[mental marsh]

Thanks @errant grail

[idle owl]

@mental marsh You can also write a function to do the math and then call the function https://learn.adafruit.com/circuitpython-essentials/circuitpython-analog-in#get-voltage-helper

[indigo yoke]

thanks all, with 7.3.1 installed, was able complete instructions without error and flash the nRF52840-DK (pca10056) board

[meager fog]

heyyy folks

we're slowly but surely going to doc our sensors on python-with-circuitpython rather than separating the code/libraries

this is our first one:

https://learn.adafruit.com/adafruit-bme280-humidity-barometric-pressure-temperature-sensor-breakout/python-circuitpython-test

take a look, anything we should add/change? cause this will be the template for the next 50 guides

[mental marsh]

@idle owl perfect, thanks 😃

[cunning crypt]

@meager fog So far, the only thing I would change would be to have all CP stuff together, and all normal Python stuff together. So, CP Wiring, CP Library installation, then Python Wiring, Python Library installation. Personally, I find it less annoying to just skip one section instead of skipping, checking, skipping, checking, etc

The only other thing I'd say? Adding a link to the guide on installing Adafruit_Blinka under "Python Installation of BME280 Library" so people don't have to worry about searching.

[errant grail]

@meager fog It may be time to move the CircuitPython section ahead of the Arduino section in the default learning guide outline. Also, somewhere in the text should either be a section on MakeCode or a disclaimer if the device isn't quite ready for it yet. I believe that most beginners would benefit from seeing CPy and MakeCode information at the top of the list.

[cunning crypt]

I agree with @errant grail - Even if a device isn't supported by MakeCode yet, it should be acknowledged somewhere.

[errant grail]

Perhaps a set of logo graphics at the top of the guide that indicates compatibility at a glance.

[manic glacier]

three-bits

[adafruit/circuitpython] Fork created: three-bits/circuitpython

[manic glacier]

dhalbert

[adafruit/circuitpython] New comment on issue #1050: nrf: implement BLE USB HID

why indeed?

[torpid goblet]

AWS Key for the S3 bucket where logs will be stored long term.

export AWS_TOKEN="< AWS token >"

Corresponding secret for the AWS key.

export AWS_SECRET="< AWS secret >"

@slender iron is^ internal adfruit information? Should I figure out a way to bypass aws for my local rosie testing?

[slender iron]

ya, try without

[torpid goblet]

@slender iron ok. making progress I have travis-ci.org correctly sending triggers to my box from a forked circuitpython

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

I didn't realize 32 bit was also valid. I like the idea of standardizing to 128 bits.

It seems like the type is a way to encapsulate how much of the ID is transmitted over the air. So, could we replace type with transmit_length (in bytes)? That seems clearer to me and doesn't need the enum class.

Also, can we drop string support in favor of int or bytes-like? byte strings are smaller and simpler to use.

For reference: https://docs.python.org/3.7/library/uuid.html

The modular i...

[slender iron]

awesome! lunchtime for me

[manic glacier]

arturo182

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

I see, so now I get almost everything ;) So we would agree to keep UUID as a single class? As for the transmit_length, it sounds ok, but I think we should still have some way to get the bit value (16, 32, 128) in a fast way. Maybe just a bits property that would return 16, 32, 128?

I can drop the string support, should I also drop the deep copy, it's there cause it was copied from ubluepy.

As for the modular idea, one problem I see is can the C code reference constants from .py file...

[tidal kiln]

is there a flash eraser UF2 for the itsy m0?

[raven canopy]

@tidal kiln i don't see one on the troubleshooting page...

[latent raptor]

Problem: I have a Circuit Python Express. When plugged into my computer’s USB it boots and runs perfectly. When I run it from a USB battery pack it runs a couple lines then stalls at my while True: line and never advances. Same error with a lithium battery pack on the 3.7V input. Any ideas?

[raven canopy]

@latent raptor we'd need to see the code that the CPX is running. if you paste it here, enclose it in 3 backticks (` , usually below the escape key)

[tidal kiln]

@latent raptor can you link full code? (pastebin)

[raven canopy]

or pastebin works. 😄

[latent raptor]

Sure hang on

[tidal kiln]

or gist or equiv

if it's just a dozen or so lines, go ahead and post it here

[latent raptor]

@tidal kiln https://pastebin.com/khmfQYjE

@raven canopy thank you. Here it is in pastebin

It works fine when powered by my computer, and at the top of the code is a cpx.red_led true false which always runs, no matter the power source. But on battery it does not fall into the while loop

[tidal kiln]

@latent raptor so the cpx.red_led heartbeat in the while True: doesn't continue?

[latent raptor]

@tidal kiln correct

It never flashes

The ones before the while loop do work on any power source

[tidal kiln]

what's attached to the uart?

[latent raptor]

ESP32

It is powered by the same computer’s USB

It just sends two bytes every so often

[umbral dagger]

Sure sounds like the read is blocking and waiting

[latent raptor]

It’s strange because it only fails when on battery power...does the UART require a bit more juice?

I have a 2000mAh battery

[tidal kiln]

the ESP32 is unpowered with only battery?

[latent raptor]

The ESP32 is only powered by the computer’s USB.

[tidal kiln]

what are your wire connections between the CPX and ESP32?

[latent raptor]

ESP32 pin IO17 to pin A6 on CPX

[tidal kiln]

A6 = RX

so just the one wire?

[latent raptor]

Yes

[tidal kiln]

you need to connect the GNDs also

[raven canopy]

@umbral dagger that's what i was thinking. now i just have to remember where the UART code is... 🤔

[tidal kiln]

when both are on USB, they have a shared GND

[latent raptor]

Ok lemme try that 😃

[tidal kiln]

but when you go battery on the CPX, you're loosing that

[latent raptor]

Ahhh much better! Ok, noobie mistake. That works

Pulling my hair out lol

[raven canopy]

@tidal kiln is on another level when it comes to troubleshooting.

[umbral dagger]

I find that the most frustrating things often are the fault of something trivial.

[tidal kiln]

@latent raptor sweet. glad it was that easy and simple.

[raven canopy]

@umbral dagger uart.read() will timeout on the busio object's setting. since we were both going down that thread...

[latent raptor]

Heck yeah, thanks @tidal kiln

I do have a minor bug. If the esp32 powercycles the CPX stalls out the UART and fails to recover. I have to reset the CPX.

But I am not too worried about that bug 😃

[tidal kiln]

@raven canopy @umbral dagger the wording in the doc kind of sounds like the timeout only happens when nbytes is not specified:
http://circuitpython.readthedocs.io/en/latest/shared-bindings/busio/UART.html#busio.UART.read
hopefully it's there either way

[raven canopy]

@tidal kiln yeah, i'm digging down to the common-hal to verify...

looks like it will timeout if nothing is received, or after something is read but the buffer isn't full: https://github.com/adafruit/circuitpython/blob/master/ports/atmel-samd/common-hal/busio/UART.c#L250

default is 1 second (1000ms)...

[tidal kiln]

even with signal issues, wonder how it was able to lock up. maybe something lower? io_read?

[wraith tiger]

This is what was playing in the back of my mind while I read @tulip sleet 's nightlight learn guide: https://youtu.be/NhjSzjoU7OQ

[raven canopy]

@tidal kiln could be. the timeout doesn't penetrate that far: https://github.com/adafruit/asf4/blob/master/samd21/hal/src/hal_io.c#L69

and the floating RX would have at least returned bogus values, if that was the cause. no?

[tidal kiln]

i'd think so. but maybe not. not sure what the behavior would be if it were floating in one of the logic level gray zones.

hw might be like "so....are you a 1 or 0? guess i'll just wait here until you decide......"

[raven canopy]

undefined behavior == undefined. 😄

one "="? what was i thinking?

[tidal kiln]

≡

[raven canopy]

now to hunt down some "why is DFLL setup like this on M4", before I ask Scott or Dan. 🤔 📚

[idle owl]

Can someone take a look at this please? https://github.com/adafruit/Adafruit_CircuitPython_Bundle/pull/84

[raven canopy]

yay! a distraction! 🐿

[idle owl]

😄

[raven canopy]

did you want a review on the lib too? (i peeked to make sure the submodule is gtg. it is!)

@idle owl done!

[idle owl]

@raven canopy Thanks. Limor already reviewed it, so as far as I know, it's good to go as well

[raven canopy]

well yeah, i'd say that counts. 😆

[idle owl]

Thank you, I can now check that off.

[strange pumice]

Is there a style policy on globals? I see a half dozen examples in the learning system with globals and a pylint comment to ignore them.

[raven canopy]

@strange pumice not that I've seen/heard of.

[drowsy geyser]

@tulip sleet Can you resend me the link for installing the GCC ARM cross-compiler toolchain on Linux? I can't find my note....

Or a link to the guide that describes it? 😃

[raven canopy]

@drowsy geyser this was in the history: https://launchpad.net/~team-gcc-arm-embedded/+archive/ubuntu/ppa

[drowsy geyser]

Thanks @raven canopy ! I looked in the history but didn't see it.

That'll be right helpful. 😃

[raven canopy]

"ppa" was the key ingredient. at least for me. 😆

[drowsy geyser]

Ahhhh, of course. Thanks!

[raven canopy]

you're welcome.

[drowsy geyser]

Nice! Installing now. Boy, that's a big toolchain. 😃

Now I can build 3.0 latest. Which means I can flash all my devices with new firmware. Which means I can test @idle owl 's guide tomorrow! (Dependencies ending in goodness.)

[raven canopy]

All of that is a big 🎉 !!

@strange pumice i just read PEP8 (been a while), and didn't see any mention there. only some notes about declaration order (import first, blah, blah).

[remote pike]

I accidentally installed Circuit playground express 2.0 on my trinket m0. Now I can't start the boot loader again to install trinket 3.0 circuit python. Any ideas. When I push the reset button on the trinket the boot loader doesn't start.

[raven canopy]

@remote pike "When I push the reset button": you're double-tapping right? timing can be finicky...

[remote pike]

Yes

[raven canopy]

k. do you have the Arduino IDE installed?

[remote pike]

Yes

[raven canopy]

that would be the easiest way, IMO. upload a sketch, then use the double-tap to get back to the bootloader.

[remote pike]

Sorry. I don't have Arduino IDE on the m0. I do have it on my PC.

I was trying to become familiar with circuitPython on the trinket.

[raven canopy]

yeah, that's what i mean. open the Arduino IDE on your PC, then upload one of the example sketches for the Trinket M0. that will overwrite CircuitPython and the bootloader.

you'll need both the Arduino SAMD and Adafruit SAMD board support packages.

here is the learn guide for the Arduino IDE setup: https://learn.adafruit.com/adafruit-trinket-m0-circuitpython-arduino/arduino-ide-setup

[remote pike]

Ok. I'll work on that. It will take me a few minutes. I'm not sure how much time you have tonight. I appreciate your help.

[raven canopy]

I'll be here a while. and, you're welcome.

[remote pike]

A few minutes might be a bit optimistic.

[raven canopy]

hehe. i was just getting to the good parts @drowsy geyser....then poof!

[drowsy geyser]

Pretty sure I'm doing something wrong (and I'll use backticks this time): ```
prm@serval:~/circuitpython/ports/atmel-samd$ make BOARD=circuitplayground_express
Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.
FREEZE ../../frozen/Adafruit_CircuitPython_BusDevice ../../frozen/Adafruit_CircuitPython_CircuitPlayground ../../frozen/Adafruit_CircuitPython_HID ../../frozen/Adafruit_CircuitPython_LIS3DH ../../frozen/Adafruit_CircuitPython_NeoPixel ../../frozen/Adafruit_CircuitPython_Thermistor
xargs: /home/prm/circuitpython/mpy-cross/mpy-cross: No such file or directory
../../py/mkrules.mk:121: recipe for target 'build-circuitplayground_express/frozen_mpy' failed
make: *** [build-circuitplayground_express/frozen_mpy] Error 127
prm@serval:~/circuitpython/ports/atmel-samd$

[raven canopy]

did you do git submodule update --init --recursive after cloning? and make -C mpy-cross?

[drowsy geyser]

Former yes. Latter, uh, no.

<sheepish> Thank you. Seems to be much happier now. 😃

[raven canopy]

hehe. all good. pretty sure i've asked the same question before. 😄

[drowsy geyser]

LOL! Well, I was using my Windows 10 machine in the Linux subsystem to work ... for months. Now I got a big fancy System76 Ubuntu system and I'm trying to get everything configured right. Really appreciate the help!

And when UPS finally comes I can re-figure out how to make the JLink work. 😃

[raven canopy]

no worries. i was looking at system76 lappies the other day. amusing that they only mention running windows in a VM vs dual-boot.

[drowsy geyser]

Yeah, I don't bother. I run FreeBSD in a VM, but if I need/want Windows I just use the Razer....

[raven canopy]

i think it's device driver related. 🤷 yeah, i've grown to accustom to using the Vagrant VM for . WSL seems too much of a hassle with no shared folders...

[drowsy geyser]

Oh! If you want into the Windows filesystem just ```
cd /mnt/c/Users/<username>/

[raven canopy]

really? when did that get implemented? last i looked it wasn't working yet...

[drowsy geyser]

It's worked for the past 10 months for me. 😃

I'm pretty sure it's gotten to GA and I'm not using the internal build....

[raven canopy]

steals hukuzatuna's previous <sheepish> tag

[drowsy geyser]

LOL!

I know there's a bunch of new stuff in dogfood right now, but this is on my Razer that's not attached to the internal Corp domain.... So it doesn't get internal-latest.

[drowsy geyser]

WooHoo! CircuitPython 3.0-latest built for all my hardware!!! CP FTW!

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on pull request #1032: nrf: Move the UUID class from ubluepy to the shared bleio module

I thought about transmit_length being bits but bytes makes it easier to slice the id. uuid.id[:uuid.transmit_length]. Bits is easy to get with uuid.transmit_length * 8.

I'd drop deep copy as well. I'm not sure why it's needed.

C files can read python state but its more complicated than its worth. I'd just have a minimal copy of what we need in C.

py files can't really extend C modules. I'd have those higher level gatt definitions in a separate lib we can freeze in if we like. A...

MartinHarding

[adafruit/circuitpython] New star added

[remote pike]

@raven canopy I have all the SAMD modules installed on my PC. I was able to upload a sketch to the trinket. Seems like I seen a article about restoring circuitPython back to the m0 board on adafruit. I'll try to hunt that down tomorrow. I have to shut it down for the night. Thanks for the help. Is that the next step....reinstalling circuitPython to the board?

[tidal kiln]

https://learn.adafruit.com/welcome-to-circuitpython/installing-circuitpython

[raven canopy]

@remote pike glad you got a sketch uploaded. yep, next step is putting CircuitPython back on. should just be a matter of double tapping to get back to the bootloader.

[remote pike]

Thanks again. I'll give it a go tomorrow.

[raven canopy]

@remote pike you're welcome. and i just verified (been a while). double tap will get you back to bootloader after uploading an Arduino sketch.

[sturdy furnace]

What signal is ctrl+D (^D) when sending the reload signal to the REPL? I'm pretty sure ctrl+C is end of text?

[raven canopy]

Ctrl+D = End Of File

for POSIX at least.

[strange pumice]

@raven canopy - thank you for checking out PEP8.

[raven canopy]

@strange pumice i did come across a "suitable" explanation on stackexchange, which is summarized by "if you're maintaining large programs, wide use of global is difficult to trace and debug". probably not much of an issue in our mostly-embedded world.

[manic glacier]

tannewt

[adafruit/circuitpython] New comment on issue #586: nRF52: BLE Python Helper Classes

Ok, here is a sketch of what we could do. The idea is that the same object is used on the client and server. It runs in CPython as-is (actual ble is faked).

import collections
import struct

# in C

# use this to instantiate unknown devices with known services
all_services = {}

def register_service(cls):
    all_services[cls.uuid] = (cls.field_name, cls)
    return cls

# use this to instantiate known devices
all_devices = {}

def register_device(cls):
    all_s...

jerryneedell

[adafruit/circuitpython] New comment on issue #616: I2C issue on NRF52 \(PCA10056 board\)

sure, will do it as soon as I can.

[sturdy furnace]

@raven canopy Thanks! I'm trying to reload the firmware from my laptop (my code requires me to turn off auto_reload(). My thinking is if I send ^D via the serial port it will reload like in the REPL

[drowsy geyser]

Oh hey, here's a @tulip sleet guide on installing and configuring the GCC ARM toolchain on Linux. Duh. 😃

[sturdy furnace]

Yay! so now I have a vscode setup where on save of my code.py in my github repo it copies it to the CIRCUITPYTHON drive (for me E:/) and reloads the firmware

[slender iron]

@indigo wedge can you merge now?

[manic glacier]

arturo182

[adafruit/circuitpython] Pull request closed: #1036 Fix nrf52840 serial mentioned \#1021

arturo182

[circuitpython:master] 5 new commits

3525d65 should fix #1021 - hathach
d4e84a9 Merge branch 'master' into fix_nrf52840_serial - hathach
a0b9871 use seperate interrupt_char.c for nrf - hathach
bb28faf arturo182 review - hathach
1fb8197 Merge pull request #1036 from hathach/fix_nrf52... - arturo182

arturo182

[adafruit/circuitpython] Issue closed: #1021 nrf pca10056 \- control C will not break out of loop

[indigo wedge]

😮

Merge all the things!

[slender iron]

😃

its weirdly mixed with push access

💤

[solar whale]

@idle owl I released new version of the Adafruit_CircuitPython drivers for STMPE610 and RFM69 -- I hope I did it right - If not, let me know what I should have done differently. Bumped STMPE610 up to 1.0.0 since I "think" it has addressed the known issues.

@idle owl looks like travis had some issues with the release 😦 -- odd since it worked for the commit -- are the rules different for release? I won't have time to look into it until tonight. Let me know if I need to do anything right away or if it ok for it to sit as for awhile.

In fact, I don't even understand what it is complaining about -- any guidance would be appreciated.

[lavish saffron]

Hi, I’m playing with CircuitPython 3. I’m trying to convert byte objects to string objects. The decode method isn’t implemented for byte objects. Please can you tell me whether there a simple alternative?

[manic glacier]

dubelectro

[adafruit/circuitpython] New star added

[raven canopy]

I'll take a peek and see if I notice anything. I'm guessing it's RTD related... @solar whale

[stuck elbow]

@lavish saffron works for me:

>>> b'aaa'.decode('utf8')
'aaa'

[lavish saffron]

Thanks. That’s interesting. When I run the same command, it raises an AttirbuteError: ‘bytes’ object has no attribute ‘decode’. When I copy and paste into Python 3.6.5 it runs. I’ll reinstall CircuitPython and see if that helps.

[main meteor]

You could also try str(b'aaa') or unicode(b'aaa') depending on what type you want.

[solar whale]

@stuck elbow @lavish saffron Do any of the board dependent build settings (mpconfigport.h) impact this? What board are you using?

[stuck elbow]

I tried on itsybitsym0

@main meteor there is no unicode() in python 3

[solar whale]

just wondering if the small board < 192000 flash options are an issue.

[stuck elbow]

let me flash 3.0 on a gema

[lavish saffron]

I’m running it on a Metro M0 Express. Reinstalling CircuitPython 3.0.0 didn’t help.

[solar whale]

ok - nevermind.

[stuck elbow]

hmm, sorry, I tried on 2.x

on 3.x it doesn't work

but this works:

>>> str(b'aaa', 'utf8')
'aaa'
>>> str(b'\xc4\x85', 'utf8')
'\u0105'

[lavish saffron]

Thank you. That’s just what I need. I appreciate the time you’ve spent.

[stuck elbow]

sorry for misleading

now I remember a discussion in the bugtracker in micropython about dropping .decode()

[raven canopy]

@solar whale line 258 in adafruit_STMPE60.py pylint is complaining that you've renamed a module with the same name: import adafruit_bus_device.spi_device as spi_device. Not sure why it didn't complain until the merge/release.

[solar whale]

@raven canopy ah -- odd - that was there in the previous release as well.

[raven canopy]

Same with i2c on line 254. Yeah, I've seen it pass plenty. It may be a recent addition... 🤷

[solar whale]

thanks - I can make it happy, if necesary - will need to restest. For the one about the else in thr RFM69, I think Travis is just wrong - the final else Raises an exception , there is not return

also not changed since the last release. Travis is just getting grumpier with age.

[raven canopy]

Yeah. I would disable that one. The else is definitely used. Although, you could drop the else, and dedent the raise. It will only make it that far if none of the conditions are met. I think that is pylint's "intent" of the warning.

[solar whale]

True -- resistance is futile ...

Thanks -- I guess I'll make those changes, retest and submit new PR's. sigh..

It may not happen until this weekend.

Is is necessary to "cancel" or "pull back" the releases I tried today - or just let them sit until the new ones are ready

[raven canopy]

I'd let them sit. Functionally it works, so if someone grabs it if adabot updates the bundle, it should be fine.

[solar whale]

Agreed --- It's a bit annoying that these issues were not flagged at the merge stage so they could have been dealt with then. Was somethigng changed in the way pylint is used in the last few days?

@raven canopy The more I think about it, the more I think this should be corrected. IF there was an update to the rules between the merge and release, then I guess its not a real problem, but if the rules should not be different for merge and release. Any suggestions on how t follow up on this?

[manic glacier]

bossjones

[adafruit/circuitpython] New star added

[raven canopy]

We'll, I think @slender iron holds the keys and knowledge on the intricacies of Travis, Sphinx, et Al. But, he's out starting today I think.

[solar whale]

OK - we'll see if anyone sees this discussion -- If not, I'll raise it next Monday. Thanks

[indigo wedge]

So I'm working on a C class and have a property that's a list, is it possible to somehow get notified every time an item is appended to the list? I thought I could make my own list class that inherits list and overloads append, but unsure if that's possible in CP. I could drop the property and just have get_x and add_x and do my thing in add_x but I'd rather have a property. Any ideas? Maybe I'm not approaching this in a Pythonic way?

[stuck elbow]

@indigo wedge why do you need to do something when an item is added?

[indigo wedge]

this is for ble, when i add a characteristic to a service i need to register it in the ble driver to get a unique handle and pass it back to the characteristic, i could do this also later when the service is actually used but then the characteristic won't have the handle until then

[stuck elbow]

@indigo wedge what would happen if instead of appending to that list, someone just replaced the whole list by doing foo.bar=[new, list]?

[indigo wedge]

can you that if the property has no setter?

[stuck elbow]

so it's a property, not an attribute?

I see a lot of magic in there

can't you just pass a list of characteristics to the call that actually needs that information?

[indigo wedge]

yeah i think i might end up doing that

[stuck elbow]

or even have a method like register_charcteristics(list)

[prime flower]

@solar whale I usually have travis run (you'll need to set it up to the repo online via travis site or locally on your computer with travis-cli) on a cloned repo (adafruit_repo -> brentru_repo) before PR'ing into an Adafruit Repo

[solar whale]

@prime flower I did that - the PR passed travis build and test fine -- it was not until I released the new version that it complained.

[prime flower]

(shakes fist in air) TRAVIS!

[covert oxide]

Hi, so, I have a "mylib.py" with about 14 functions and 2 class definitions, and when using it in "myCode.py" I'm observing that the import statement takes about 16 seconds on CP 3.0, where it was almost instantly on 2.3.1... is that something anyone else has observed?

[slender iron]

@solar whale sounds like pylint was updated

[solar whale]

@slender iron OK - so just bad timing on my part.

[slender iron]

@covert oxide file an issue and we'll look at it

we are doing more memory stuff than before

[meager fog]

@umbral dagger hey totally no biggie but if you can remember, please squash your PR's if youve got a ton of linty-commits 😃

i enabled squash-n-merge on the learn guide repo as well!

whew ok - this is now passing https://travis-ci.org/adafruit/Adafruit_Learning_System_Guides

[slender iron]

we disable it on most repos because it makes updating the original branch harder. I suggest squashing locally instead of during the merge

[meager fog]

@slender iron ok np - can disable it, just turned it on late last nite

iz gone now

[slender iron]

np, just letting you know why

[meager fog]

👍

[tidal kiln]

we may want to consider updating the text here:
https://learn.adafruit.com/introducing-itsy-bitsy-m0/uf2-bootloader-details#updating-the-bootloader
to be a little more "you typically don't have to do this"
I think some people are seeing that as part of a general fix for non-bootloader related issues, ex:
https://forums.adafruit.com/viewtopic.php?f=62&t=138345

[meager fog]

@tidal kiln its not a terrible idea, and never has bricked a board.

[slender iron]

@indigo wedge see this? https://github.com/adafruit/circuitpython/issues/586#issuecomment-405794592

[meager fog]

but ill update it!

[indigo wedge]

Hi @slender iron , yes I've seen it, need some time to sit on it and think 😉