@nocturne hatch Yes, after 4.0.0, we'd like to do simple central mode support, and BLE HID. There's no schedule, though.
#circuitpython-dev
tulip sleet
manic glacierBOT
Crash into the HardFault_Handler.
I was trying to run the Thermometer.py example code on a PyPortal.
Below is the url address of a .png snapshot of the CircuityPython directory
upbeat plover
@stuck elbow @timber mango can you guys test this for me?
it works on my custom build, but would like to know if it works on different ugame stuff, and if the screen scaling stuff works right
like is it playable without any edit
stuck elbow
@upbeat plover the buttons don't seem to be doing anything
ah, it works, I had broken firmware from testing
good job
teal bear
I've got a SPI on cPython problem: https://github.com/petrockblog/RPi-MCP23S17/issues/10
idle owl
<@&356864093652516868> Here is the notes doc for today's Weekly. Please put your Hug Reports and Status Updates in even if you'll be there in voice - it's super helpful! Thanks! https://docs.google.com/document/d/1ReQ9NS7Q93XM0qE3IHrrFCsTEnpIO_n6dUJI98Ie__E/edit#
upbeat plover
@stuck elbow only buttons are up and down, I was gana do differently but i found gameplay more fun/difficult as it is now, the only thing i would like to work on is the Wall class, id rather it be a tiled sprite thingy.... I would like to do something (ugame.display.height//2) and then just move it randomly with random.randint(0, (ugame.display.height//2)) that way its like a wall is coming and you have to go above it or below it.... i wasnt sure how that would scale though.... like if the screen was really big would it be possible to get out of the way.... blinka's speed increases with screen size but so does everything else
also if you tried current version on a really big screen i would guess it would lag, from the massive amount of objects it would have to keep track of
modest atlas
@umbral dagger i love your article on the trinket mo express hack, is it possible to do the same but keeping the flash external and using pins on the board over soldering to the mcu
umbral dagger
@modest atlas Should be but you would loose what little I/O the board has.
It was an experiemnt more than a practical project.
modest atlas
Want to add flash to a feather mo lora
umbral dagger
Ah
It's just SPI
You'd need to make custom board support for it.
If it's just storage you want, you coiuld add an SD card to the SPI interface. Then no special board support needed.
modest atlas
Could I store my cpy lib files there
umbral dagger
I don't think so.
You'd have a bootstrap problem... loading the SD lib so you could load libs 😃
Though the core system could be in internal flash.
You could do a build with the sd lib frozen into the core CP.
@modest atlas Here's a question... can you share a spi bus with flash and other devices?
modest atlas
I have no idea
umbral dagger
I'm thinking external spi flash might want/need the full bandwidth.
@modest atlas Anyway, glad you liked the article. That was the start of a long and twisty road over the last year and half.
modest atlas
You have some great work very educational and exciting to see
umbral dagger
Thanks
teal bear
@umbral dagger I've been doing SPI for about 48 hours now.. that said, I think you can share - this might answer it http://codelectron.com/how-to-setup-virtual-spi-in-linux
orchid basinBOT
teal bear
also, if anyone knows how to log SPI driver requests, that's my current task
upbeat plover
Edublocks is nice, good place to start, recommending it to my friend i let borrow CPX
inland tusk
is there a meeting this week
solar whale
yes
old smelt
Lurking today.
sterile bronze
Lurking for the meeting
solar whale
👋
raven canopy
have my lappy at work today. tethered to my phone, so hopefully have a mic.
tidal kiln
lurking
upbeat plover
https://app.edublocks.org works with more then just CPX? i assume so, I just made simple D13 script for gemmo M0
turbid radish
Here but lurking today
raven canopy
thanks 
!!!
river quest
In the news - HackSpace issue #18 has a TON of CircuitPython articles / projects, including a 6 page getting starter - https://hackspace.raspberrypi.org/issues/18 (PDF download). AND 2600 has a PyPortal project.
slender iron
🎉
inland tusk
harrah for the core
turbid radish
I'm mike only... 😃
slender iron
@stuck elbow mind sorting your notes alphabetically on your username?
raven canopy
"Only. Mike, Only." 🕵
pastel panther
@turbid radish 😐
stuck elbow
sorry, I thought I did
turbid radish
Actually still lurking, :humor:
stuck elbow
fixed
turbid radish
New boards, yes!
wraith tiger
BTW, for anyone using vim vimregex.com is very informative vim's flavor of regex.
prime flower
@wraith tiger I have some PySerial/USB experience from a very weird project last year, if you need some advice on it. Feel free to PM or chat in a diff. channel
solar whale
@idle owl What do you do in your spare time 😉
idle owl
Spare time?
raven canopy
PyCon prep? 😄
old smelt
@slender iron - sorry for the late reply. Yes, I did. Mostly working on other stuff right now, but listening in and wanted to get my hug report in last-second. kattni got it. Thanks!
slender iron
cool cool, thanks!
wraith tiger
@prime flower OK, thanks.
I remember the character of Uncle Martin from the "My Favorite Martian" TV show would purge unimportant info from his brain to free up memory space.
BTW, this is where I got the pcb design for the USB breakout: http://www.techunboxed.com/2013/06/usb.html
errant grail
wraith tiger
It's a clever design that can be used as two separate breakouts or as a pass through when jumpers are installed.
prime flower
ha yes! CircuitPython_Nest!
gilded cradle
Congrats @turbid radish. Your book is in the new Humble Bundle: https://www.humblebundle.com/books/electronics-3d-printing-make-books?hmb_source=navbar&hmb_medium=product_tile&hmb_campaign=tile_index_3
turbid radish
Thank you, yes I need to boost this as well. Hopefully we'll get some good sales 😃
gilded cradle
Yeah
solar whale
turbid radish
Anyone wanting either a paper or eBook on working with the Circuit Playground Express, check for the book "Getting Started with Adafruit Circuit Playground Express" wherever you order books from. Or check out the Humble Bundle for a good group deal for the eBook.
prime flower
@solar whale woah - flappy inflatable tube man! PM me with more details as you work thru it, we'll blog it up!
turbid radish
Go RC 😃
pastel panther
old boss liked to say a pessimist is an optimist with experience
errant grail
Release the candidate!
pastel panther
@raven canopy is channeling adabot
slender iron
my voice connection is bad here
pastel panther
so is kattni?
tulip sleet
me too - some kind of discord issue
slender iron
thanks for running the meeting @idle owl and thank you to @pastel panther for taking notes!
pastel panther
glad to help!
turbid radish
Thank you to the CircuitPython team and to you all
errant grail
Thanks!
slender iron
👋
prime flower
👋
gilded cradle
Thanks
slender iron
hope to see you there @inland tusk
turbid radish
If you use CircuitPython, consider giving it a GitHub star at the top of the page at https://github.com/adafruit/circuitpython
upbeat plover
i want to recreate my favorite NES game "Seicross" I never beat it, graphics would end up currupting so bad it would be like crazy looking
wraith tiger
It looks like I’ll need to upgrade to at least a slightly better logic analyzer to be able to capture full speed USB.
Mine is only 24 MHz max, which is only twice the full speed rate.
stuck elbow
isn't usb using differential signals?
teal bear
@wraith tiger what are you doing looking at USB?
wraith tiger
@stuck elbow It’s sort of pseudo-differential.
manic glacierBOT
simple pulsar
Hello all. What's the estimated date for CircuitPython 4 release?
slender iron
@simple pulsar soon. hoping to do a release candidate in the next few days
and then we'll wait a week-ish to hear of any issues
we'll fix any that come up and reset the week-ish waiting period
simple pulsar
Ok, just curious, I'm working on a Learn Guide which uses that adafruit_midi and has the dependency on 4 for USB MIDI support. But I am in no particular rush.
meager fog
@tidal kiln hey can you let me take over the RFM FAQ
tidal kiln
sure. try now?
tidal kiln
@slender iron fyi - at this point i think the hard crashes were something on my side. i had an unused import i found when writing up the issue that seemed to be related. (import of imageload)
wraith tiger
@teal bear Sort term: I want to be able to capture traffic between my dmm & computer. Long term: Logic analyze all the things!
slender iron
@tidal kiln nothing on your side except power should be able to lead to a safe mode. anything else is something we should fix
tidal kiln
ok, the other hiccup was the current state of imageload. i think i had the PR version pushed over.
slender iron
kk, I'll fix the color order soon
@tidal kiln mind finishing this https://forums.adafruit.com/viewtopic.php?f=60&t=150430 ? I'm not sure where we are at for pyportal rmas
tidal kiln
@slender iron yep. responded.
slender iron
thank you @tidal kiln
teal bear
@wraith tiger in freenode #timvideos futarisIRCcloud CarlFK: What do you want to capture full speed USB for? There was good video that outlined the (cheap) options (on #timvideos or #tomu) a few weeks ago...
wraith tiger
@teal bear I'm not an IRC user so I'm not sure how to find the video you mentioned, but I'll likely go for one of these (or similar): https://sigrok.org/wiki/Mcupro_Logic16_clone
That one is kind of like the big brother of the one I have now..
slender iron
@stuck elbow want me to update the stage library? which release should I include?
stuck elbow
@slender iron I don't really have releases, just use the master
slender iron
can you just tag a release? that way it's easier so track what version it is
stuck elbow
thank you!
orchid basinBOT
upbeat plover
wow so many boards
is there a way to sort that list by name?
have to "Ctrl + F" and search for what im looking for so much stuff like wowz
tulip sleet
@upbeat plover Look here preferentially instead of using the github list: https://circuitpython.org/downloads . Just type the board name or part into the search box.
manic glacierBOT
desert iris
Congratulations! Version 4.0 Yes. finally.
solar whale
Who won the RC.1 pool ? 😉
orchid basinBOT
slender iron
@desert iris not quite stable but very close
gilded cradle
Potentially stable
tidal kiln
@slender iron i'm starting to work on displayio examples for non-built in display configs. any suggestions for board / display combo?
slender iron
@tidal kiln nope, they all should be ok
tidal kiln
ok. just to check - about to breadboard an itsy m4 and PID1480
slender iron
do we have a driver for the 9340C?
tidal kiln
hopefully 9341 works - does for arduino lib
nothing special about choice - just happens to be what i have on hand
but...better to use an ILI9341?
manic glacierBOT
upbeat plover
when feather air lift coming?
crimson ferry
sekret ...last Wed's A.A.E. I think I heard something about 3 hardware products coming out this week, so I'm cautiously optimistic (I wanted one almost the moment I learned about ESP32SPI)
solar whale
Off to a good start -- loaded rc1 on several boards (feather_nrf52840, PyPortal,g rancentral, metro_m4_express) no issues to report ....
stuck elbow
\o/
solar whale
also tried pewpew10 !!
manic glacierBOT
crimson ferry
rc1 looks great on PyPortal, ItsyBitsy M4, and Feather M4. I'm trying to isolate another memory leak (~50k/hour), but it was present before rc.0 not newly introduced. Looks like fragmentation, possibly related to #534 (import heap/frag).
upbeat plover
@crimson ferry I get memory leak when i use gc print without collecting after, I know you already know about the collect so probably not your issue```python
import gc
print(gc.mem_free())
but not when i do
```python
import gc
print(gc.mem_free())
gc.collect()
never mind, seems to always leak memory
both leak memory gc is broken?
stuck elbow
it's not a leak, that's how garbage collector is supposed to work
it doesn't collect until you actually run out of memmory
upbeat plover
okay so it just looks like my ram is getting less and less
stuck elbow
it is, but as soon as it is needed, the gc will run and free it
upbeat plover
thanks for clearification on that, i didnt know
stuck elbow
if you have less memory after gc.collect() runs, that's a leak
upbeat plover
? just doing gc.collect() doesnt run it unless it is needed?
upbeat plover
well i still get less and less ram with this ```pyhon
import gc
while True:
print(gc.mem_free())
gc.collect()
ill run it till ram runs out see if it runs the gc.collect after
stuck elbow
that should stabilize at some point
upbeat plover
no issue now?? shows ram constaint 159184 on feather M4
not sure why sometimes it give less and less
stuck elbow
heisenbug
crimson ferry
I have same code running on PyPortal, Feather M4, and ItsyBitsy, but with conditionals for PyPortal-specific stuff. It's a while True that does the same things over and over. The non-display version will run for days and gc.collect() (manually about every minute, b/c it keeps me alive longer) will usually pop them right back to the exact byte of memory they had before, but the PyPortal (probably displayio-related, but could be some other feature) runs down steadily until it gets a memory error. I'm trying to isolate it. I had one with making shapes, but a pre-RC version cured that one. So now I'm looking at fonts and buttons and stuff.
Believe it's fragmentation-related b/c I can't allocate about 1.5k when gc.mem_free() says I should have like 50k.
I do print(gc.mem_free()) gc.collect() print(gc.mem_free()) so I can see before and after. Maybe I shouldn't be manually gc'ing so much (in theory you shouldn't need to do it at all), but it has no ill effects on the non-PyPortal code.
meager fog
@umbral dagger heya for the BLE logger guide, please add a screenshot from your phone
so they can see how to use it
umbral dagger
@meager fog will do
celest zenith
Are there plans to add I2C and monochrome (1bpp) support to displayio?
umbral dagger
@meager fog How's that look?
stuck elbow
@celest zenith Yes, eventually
ruby lake
for my truck? 😉
crimson ferry
PyBadge!
upbeat plover
PyBadge reminds me of hallowing but M4
meager fog
yah its not too different
but of course, buttons, bigger screen, beefier chip, can run makecode arcade and more
stuck elbow
yay, pybadge is on sale!
upbeat plover
i got miniTFT joypad featherwing working with feather adalogger had to cut out soo much
LD_FILE = boards/samd21x18-bootloader.ld
USB_VID = 0x239A
USB_PID = 0x8015
USB_PRODUCT = "Feather M0 Adalogger"
USB_MANUFACTURER = "Adafruit Industries LLC"
INTERNAL_FLASH_FILESYSTEM = 1
LONGINT_IMPL = NONE
CIRCUITPY_SMALL_BUILD = 1
CHIP_VARIANT = SAMD21G18A
CHIP_FAMILY = samd21
CIRCUITPY_DISPLAYIO = 1
CIRCUITPY_PEW = 0
CIRCUITPY_NEOPIXEL_WRITE = 0
CIRCUITPY_ROTARYIO = 0
CIRCUITPY_RTC = 0
CIRCUITPY_SAMD = 0
CIRCUITPY_USB_HID = 0
CIRCUITPY_USB_MIDI = 0
CIRCUITPY_TOUCHIO = 0
CIRCUITPY_GAMEPAD = 0
CIRCUITPY_GAMEPADSHIFT = 0
CIRCUITPY_I2CSLAVE = 0
CIRCUITPY_BLEIO = 0
CIRCUITPY_AUDIOIO = 0
CIRCUITPY_AUDIOBUSIO = 0
CIRCUITPY_NVM = 0
CIRCUITPY_NETWORK = 0
CIRCUITPY_WIZNET = 0
CIRCUITPY_FREQUENCYIO = 0
CIRCUITPY_ANALOGIO = 0
CIRCUITPY_MATH = 0
FROZEN_MPY_DIRS += $(TOP)/frozen/feather_m0_adalogger
CFLAGS_INLINE_LIMIT = 35
and i froze adafruit_bus_device
never thought it would be possible but it is, its possible to use it with M0 non express boards
doing different test right now see if i can add back and not have to use frozen bus stuff
stuck elbow
@upbeat plover that is a fun exercise, but ultimately not very practical
I finally got this thing to work
opal mason
@meager fog Thanks for the heads up about the M4 express airlift. Just grabbed one from the store. Going to use it as the foundation of my next robot project ( a BB-8) running CP. Looking forward to developing some libraries to handle sabertooth motor controllers....
upbeat plover
@stuck elbow your right not very practical, but i just did test and my UART logger still runs on this build... gana try something crazy and see if i can get the logger and the display to work same time
stuck elbow
@upbeat plover you know you can graft a flash memory chip on that feather and turn it into feather haxpress?
meager fog
@opal mason nice
modest atlas
Congrats on cpy 4.0.0!!!
upbeat plover
ive heard about people doing stuff like that but ive never tried, i total would give it a go if i had a little SPI storage chip
stuck elbow
there is a trinket_m0_haxpress example in the boards
upbeat plover
@stuck elbow can i somehow get the SD card to be external flash device?
stuck elbow
you can run programs from an sd card, but you can't have it show up on USB
@meager fog on the pybadge description it says that it has a volume pot, but I can't see it on the photos
upbeat plover
@stuck elbow i mean more like build CP so i can put a ton of frozen in the SD card?
stuck elbow
no, you can't do that
meager fog
ioh right yeah
ill remove
fixed
@stuck elbow lemme know if i mde any other mistakes 😃
stuck elbow
looks good!
by the way, why are the direction buttons black? did you use different ones? weaker/stronger?
stuck elbow
@tulip sleet mid-air collision :)
tulip sleet
@stuck elbow I just deleted mine, yours is better!
manic glacierBOT
stuck elbow
tbh, it would probably be a good idea to add an example specifically for that shield
but I'm way too lazy to do that
gilded cradle
Yeah, I didn’t realize that shield would work with CP when I wrote the example. I can add a shield specific version to the repo if that modification ends up testing good.
stuck elbow
that would be awesome!
upbeat plover
anyone working on CP guide here? https://learn.adafruit.com/adafruit-mini-tft-featherwing
i think the helper lib is in the bundle now
if not ill try making a draft. @idle owl you already got something in the works? seems like when ever im gana do something like that you already have it done 😃
idle owl
@upbeat plover It's not on my list 😃
upbeat plover
do you know if anyone else is working on it? sound like im good to go
idle owl
I don't know, @gilded cradle might be the only one who could be. Maybe wait on a response from her.
upbeat plover
kk
gilded cradle
Yep, I’m working on a guide for using displayio with TFT FeatherWings.
upbeat plover
Awesome
sly falcon
Howdy folks. I've got a fresh build of the NINA firmware if anyone wants to test it out. I put a pre-compiled binary up on github: https://gist.github.com/docmollo/c88fa7655b0d6a2e26c92a9ecb97e781
the matching source is at https://github.com/docmollo/nina-fw/tree/docs_idf_cleanup
The only change (other than the version rev) is it's compiled against the official Espressif IDF v3.2 that was recently released
I'm doing some testing here and thinking it would be great to get some others to test before I submit the PR
Anyways...back to Ask an Engineer!
solar whale
@sly falcon thanks for building and posting it. I look forward to trying it. Unfortunately, I won’t be able to do any testing until next week. Good luck with it.
crimson ferry
@sly falcon I can load it up on a couple of mine. Anything special to do, or just let my CP software put it through its paces ( a few web calls every hour)?
sly falcon
@solar whale thanks! And no worries....I'm sure we'll get it figured out 👍
@crimson ferry nope - should behave just like the factory-shipped firmware (v1.2.2).
Heck... should behave just like v1.3.0, too
crimson ferry
Why is the "Adafruit Metro M4 Express AirLift (WiFi) - Lite" called "Lite"? ...cuz it's lifted by air, or are there some abbreviated features from what some might expect?
celest zenith
you gave me an excuse to figure out how to upload new firmware on my airlift
@sly falcon success, I built your branch and loaded it onto my AirLift, will let you know if I have any problems.
sly falcon
@crimson ferry if I understood ladayada on AaE tonight, it's because it's using a version of the SAMD51 with less RAM
@celest zenith woo for learning new things! Haha
Thanks for compiling and testing! I look forward to hearing how it goes
BTW - did you follow the updated instructions I have in the README?
celest zenith
no, I had already setup a build environment and just checked out the v3.2 tag so I just ran make and then cut an pasted the python command that pops out of the build
tulip sleet
it's Lite because SAMD51J19 instead of J20 (192kB vs 256kB ram), 2MB instead of 8MB external flash, no crypto chip
crimson ferry
Thanks docmollo and danh. It's good to see Airlift taking off (pun intended)!
@sly falcon I'm not savvy with the building yet, so I loaded the .bin
tulip sleet
no guarantees on anything; what shows up is what you get, but we've had LEEKS
upbeat plover
i dont have a metro yet i think i might get a samd51j20, just cause that and I dont have grand central
sly falcon
@celest zenith ok, cool. Should be the same thing as running "make firmware" and uploading that.
@crimson ferry you're welcome! No worries on not building from source. Testing that BIN file is totally helpful, too!
crimson ferry
Up & running on a Feather ESP32 CP-co-processor. No news is good news, but I'll let you know if anything weird happens. I'll put it on some breakouts too once I get set up for that.
tight minnow
New to circuitpython: Where to I find board.py for my device. I am looking for an easy document to determine available io pin functions.
I'm assuming a board.py must exist to support the "import board". It does not reside in the lib folder. Built into the core circuitpython code for each mpu?
main meteor
They are part of core CircuitPython for each board, but they're C modules, not .py files. As an example, here's the board files for a Feather M4 Express https://github.com/adafruit/circuitpython/tree/master/ports/atmel-samd/boards/feather_m4_express
tight minnow
Thanks. I had not explored the ports folder on github.
main meteor
Most of the board (and CPU) specific stuff seems to live there.
stuck elbow
@tight minnow if you check pins.c in those directories, you will see the name to hardware mapping there
and then you can use this document to figure out what they support: https://circuitpython.readthedocs.io/en/latest/ports/atmel-samd/README.html
solar basin
@slender iron I just saw the pygb project as I was surfing CircuitPython.org, I so want in! lol
tight minnow
Thanks all for the assistance with the board module . The link provided by deshipu seems particularly helpful
slender iron
@solar basin awesome! hardware is hard to come by now but hopefully it'll get better at some point
royal ridge
I need a sanity check: are both displayio and hid non-blocking, right?
crimson ferry
@tight minnow dir(board) and dir(microcontroller.pin) will give pin info interactively
tight minnow
@crimson ferry I've gotten dir(board) to work but not dir(microcontroller.pin) . NameError: name 'microcontroller' is not defined
Am I supposed to replace microcontroller with the name of a particular controller?
upbeat plover
i think you need to ```python
import microcontroller
then use dir(microcontroller.pin)
tight minnow
I should have thought of that. Just getting back to python after about a year. I'm proving to be a bit rusty.
Thanks
upbeat plover
ive been using CP for a while, no joke when i code i always reference this page https://circuitpython.readthedocs.io/en/latest/shared-bindings/index.html#modules
id think by now id at least remember a few of the core modules..... 😦
manic glacierBOT
inland tusk
Wondering if anybody is working oni getting blinka working on the pocket beagle bone? Just got three of the PocketBeagles
idle owl
@inland tusk Check the Blinka repo, I believe PocketBeagle support has already been added.
inland tusk
@idle owl all I should have to do is add blinka using pip3 or pip to installl it and if it works then all is well? Somebody recently mentioned it so I figured I would ask about it.
idle owl
Yes in theory.
manic glacierBOT
simple pulsar
Hello all. I've noticed that the latest bundle of libraries has the new adafruit_midi library on it but this immediately gave a MemoryError. I just had a look and was surprised to see adafruit_midi/init.py (not an .mpy file). This looks the same for a few other libraries I've just looked at. Is there a reason for this? I think this is going to be a bit of a disaster for my app code
I meant adafruit_midi/__init.py__ there
manic glacierBOT
raven canopy
@simple pulsar i didn't even think about that during the review of your PR. the release build script actually skips all __init__.py files: https://github.com/adafruit/circuitpython-build-tools/blob/master/circuitpython_build_tools/build.py#L120 -> https://github.com/adafruit/circuitpython-build-tools/blob/master/circuitpython_build_tools/build.py#L33
could be worth starting the conversation to change that, if you don't want to move it elsewhere...
stuck elbow
you shouldn't be putting any substantial code in __init__.py anywyas
manic glacierBOT
simple pulsar
@stuck elbow @slender iron @raven canopy I added a comment on all this to https://github.com/adafruit/Adafruit_CircuitPython_MIDI/issues/3#issuecomment-487035082 - is the build system correct/useful in not applying mpy-cross to a library python file? I'd say not but perhaps there's something I'm not aware of here.
sly falcon
wooooo!! Order placed 😄
manic glacierBOT
manic glacierBOT
stuck elbow
@idle owl Do you think it would make sense to write a learn guide for the PyBadge with https://ugame.readthedocs.io/en/latest/tutorial.html ?
manic glacierBOT
manic glacierBOT
marble hornet
@meager fog mind if i use the feather logo on a 3rd party feather compatible board?
manic glacierBOT
idle owl
@stuck elbow Might make sense. I would suggest emailing Mike B to find out for certain. DM me for contact info if needed.
manic glacierBOT
slender iron
<@&356864093652516868> Here is the meeting notes doc for Monday: https://docs.google.com/document/d/1-rMD87ncL2SzLZoVALH5AJ7fm39dE5spGVjuW51X35k/edit?usp=sharing
slender iron
<@&356864093652516868> We will not meet May 6th or that week due to PyCon. Will meet on May 13th next after Monday's meeting.
stuck elbow
this pycon is going to be great
lone sandalBOT
orchid basinBOT
manic glacierBOT
upbeat plover
i want some wifi, but waiting on feather airlift.... i sure hope that is still a thing
stuck elbow
if you have any esp8266 board lying around, you can use that
just not as neat and convenient
upbeat plover
i dont have anything small and wifi, other then pi zero wireless
im using that for webcam/secuirity cam
exotic pumice
how did the azure pipelines experiment go?
atsamd-rs has some busted travis stuff that needs fixing
crimson ferry
@upbeat plover It seems to be, was mentioned again in A.A.E. last week (but of course "no questions" and no guarantees). The Airlift breakout is pretty nice, and the ESP32 breakout provides a lot of pins. Using ESP32 Feather as a co-processor is awkward. One complication with the Airlift Feather will be if >2 SPI FeatherWings and getting all the pins worked out. But I'm definitely looking forward to that form factor. for compactness.
solar whale
@slender iron @idle owl just a heads up. I can’t make it to the CP weekly today and will also miss the next few. I’ll be back on at the end of the month.
idle owl
@solar whale Thanks for letting us know. We're missing the next one too. Hope all is well!
solar whale
Good luck at PyCon. All good. Just schedule conflicts and some travel!
idle owl
Thanks! Have a good time!
umbral dagger
All (maybe especially @tulip sleet or @slender iron ) . I'm getting this odd situation: ```>>> air_uart = busio.UART(board.A2, board.A3, baudrate=9600)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: Invalid pins
board.A2
microcontroller.pin.A2
board.A3
microcontroller.pin.A3
which board is this?
umbral dagger
@tulip sleet Sorry: ```Adafruit CircuitPython 4.0.0-rc.1 on 2019-04-23; Adafruit Metro M4 Airlift Lite with samd51j19
tulip sleet
@umbral dagger do A2 and A3 work on a regular Metro M4? There may simply not be a SERCOM available on those pins for TX/RX
umbral dagger
@tulip sleet Oh. Good point. That worked on the Feather M4Express
tulip sleet
yeah, actual pin mapping may be quite different
tidal kiln
@idle owl do you know of status quo for CP driver for this?
https://www.adafruit.com/product/1727
idle owl
@tidal kiln Nope! Haven't heard anything about it, so I assume there aren't any plans.
umbral dagger
@tulip sleet I found a pair that work.
tidal kiln
@idle owl i'm not finding any issue that seems related. probably just another sensor that got overlooked? ok if i create an issue just to track things?
idle owl
@tidal kiln Yep, please apply the "Libraries" milestone to it. Thanks!
errant grail
Will be lurking during today's meeting. Back in the studio to track two or three more songs.
tidal kiln
lurking
group hug and good luck at PyCon to those going!
tulip sleet
we'll be here shortly - still in another meeting
sterile bronze
lurking
inland tusk
hello everyone
turbid radish
Hi all, lurking today
pastel panther
😃
raven canopy
gotta step out for a sec. bbia-flash
meager fog
oh i forgot future-hug report for @stuck elbow for some upcoming stage guides !
inland tusk
@slender iron something that I fogot to ask about is. , is there a verion of CP for pocket beagle?
slender iron
the blinka library might work with it
pastel panther
it does/should
inland tusk
thats what i thought
pastel panther
I recall a PR for support
inland tusk
I thought the same top
meager fog
hiii back
pastel panther
meager fog
@inland tusk yeah theres some code for BB pocket - if you wanna try please do
i've not had cycles to test it
it should 'just work' 🤷
turbid radish
Yes, there is the Blinka Library for using CP with PocketBeagle,, thanks to the help of Drew
inland tusk
@meager fog thanks for the info
meager fog
@inland tusk plz report back on that issue/PR 😃
inland tusk
I will try to as soon as possible
meager fog
thanks everyone 👋
errant grail
Thanks everyone!
meager fog
pastel panther
EVERYONE IS AWESOME!
gilded cradle
turbid radish
Thanks all, see you back here in Discord in two weeks
pastel panther
😃
raven canopy
like an awesome possum?
meager fog
that was a fast meeting!
sterile bronze
Thanks you all do great work making my life easier
pastel panther
errant grail
Our box turtle doesn't shed much.
pastel panther
gotta feed 🐕
idle owl
Later!
gilded cradle
later
raven canopy
hoppin off too. 👋 🐇
tidal kiln
too late for in the weeds?
Q: how will displayio support work in blinka?
tidal kiln
i'm not currently seeing any related issue in the blinka repo?
slender iron
no, I don't know if it's planned at all
tidal kiln
guess i can find out by creating one
slender iron
it'd be good to track
stuck elbow
pysdl2 perhaps
though it does work differently
instead of going down through the stack of layers from the top down, you just blit them over each other from the bottom up
simple pulsar
FYI, on the __init__.py not being compiled with mpy-cross I put in https://github.com/adafruit/circuitpython-build-tools/issues/29 - includes my guess as to why this was done
gilded cradle
Thanks for creating that @tidal kiln. It was something I wanted to discuss, but kept forgetting about. I think it’ll be super useful.
tidal kiln
@gilded cradle yep! totally. tons of Pi (and other SBC) Python based projects that use displays.
gilded cradle
Yeah, like for instance adding a display to a Beagle Bone Black.
stuck elbow
I think that most of the time you want to use the kernel driver for that
gilded cradle
It depends on what you want to do.
For running it more like a typical computer, yeah.
stuck elbow
pretty much for any use
you get performance and a huge ecosystem of existing tools
and yes, you can have several displays that way
idle owl
@tidal kiln Thanks!
tidal kiln
EPD?
idle owl
Yep 😃
tidal kiln
sure. np.
manic glacierBOT
meager fog
@raven canopy heya you saw the security alert on adabot?
meager fog
@tidal kiln hey i have a displayio question
did you actually try wiring it up
i thought D0 had to be on pad Px00, Px07 Px15 or Px23 (e.g. a byte boundary)
tidal kiln
for parallel bus example?
meager fog
ya
meager fog
ooo ok
tidal kiln
tidal kiln
it worked, but good question. not fully sure of the limits. might be worth pinging scott? (he read thru guide already)
meager fog
if you're feeling up for it, adding the code/pix of each 'example' would be excellent and probably required long-term
yah he reviewed, im just triple-checking 😄
meager fog
yah the ones in the guide are excellent
tidal kiln
want me to PR to learn repo?
tidal kiln
right. i'll add the complete examples for the parallel bus, etc. also
meager fog
ok!
tidal kiln
i should do some housekeeping first, so might be a bit before PR shows
i'll ping you when i send it though
raven canopy
@meager fog kattni clued me in. GitHub flagged it, iirc.
tidal kiln
yeah! all the displayz!
meager fog
😃 indeed
@gilded cradle if you want to order the shield displays to try them, those should also work
gilded cradle
Yeah, I just got some in the mail today. I was going to try that next. I wanted to do a guide with breakouts as well.
meager fog
ok you can stick it all in one guide
gilded cradle
Sounds good
manic glacierBOT
marble hornet
@weary raven awe, that's a shame.
scarlet maple
I'll just leave this here: https://www.hpcalc.org/details/7800
solar whale
@scarlet maple Can you elaborate on why you posted that? Not obvious to me.
solar whale
Thanks for the clarification -- I'm still a bit confused by the discussion, but that's OK. I get confused easily 😉
granite crow
Hi, I am trying to add support for RGB to be used as status indicators, the PR is this one , as I am not familiar with the circuitpython code base I would like to get some feedback. The functionality is based in 3 PWM signals with a fixed frequency of 50kHz, the RGB led color will be controlled by varying the duty cycle of the signals, for now the brightness is also controlled with the duty cycle also. It's still a work in progress, so any help would be much appreciated.
manic glacierBOT
manic glacierBOT
simple pulsar
I've got some new file system corruption. The board was clean according to chkdsk, then I copied lib directory on, ran chkdsk and it's now not clean. Should I ticket this? This is on a Windows 8.1 host
stuck elbow
if you have a reliable way of reproducing it...
simple pulsar
It's magically fixed itself. I rebooted after installing wireshark and chkdsk was then clean all four CPXs I have.
All very odd.
Turns out my PC doesn't boot too possibly with the four CPXs. Seems to hang at the bios. Maybe the sheer number of HID keyboards freaks it out.
stuck elbow
the keyboard that cpx emulates is not suitable for boot
it's the "extended" keyboard that most bioses don't recognize
simple pulsar
I'll look into later when I've got some time, it was rather odd but I've never had four CPXs plugged in and I don't normally have them plugged in when i boot.
lone sandalBOT
manic glacierBOT
orchid basinBOT
upbeat plover
i made some changes to CPX helper lib for sounds can someone test? i dont have mine currently, let friend borrow
im doing stuff similar with buzzer and feather
manic glacierBOT
marble hornet
i have some c questions. anyone have a moment?
mainly should i be concerned that i'm getting a compiler warning. but the program is working
#include <string.h>
char* str_add(char *a, char *b){
char c[strlen(a)+strlen(b)+1];
strcpy(c, a);
strcat(c, b);
return c;
}
int main () {
char a[] = "foo";
char b[] = "bar";
char *c;
//char c[] = str_add(a, b);
c = str_add(a, b);
printf("%s\n", c);
printf("%s\n", str_add(a, b));
return 0;
}
print:
test.c:12:12: warning: address of stack memory associated with local variable 'c' returned [-Wreturn-stack-address]
return c;
^
1 warning generated.
foobar
foobar```that is only working by accident
you are writing to a piece of memory that is no longer allocated, anything else might be already using it
you will get mysterious crashes with something like that
basically the only reason this is working is that your program is not doing anything else
stuck elbow
after the function finishes, yes
for things like that you have two choices: either you use malloc, and then you have to remember to free it when not needed anymore, or you pass c to the str_add function as a third argument, with an already pre-allocated buffer
of course then it would be nice to also pass the length of that buffer, so that the function can check that you are not going out of bounds on it
marble hornet
ah, okay. so i'm still thinking pythony...? i think i'll malloc . thank you
stuck elbow
note that if you forget to free it, you will have a memory leak, and if you free it twice, you will have a crash
they joys of manual memory management
granite crow
Hi, I am trying to add support for RGB to be used as status indicators, the PR is this one , as I am not familiar with the circuitpython code base I would like to get some feedback. The functionality is based in 3 PWM signals with a fixed frequency of 50kHz, the RGB led color will be controlled by varying the duty cycle of the signals, for now the brightness is also controlled with the duty cycle also. It's still a work in progress, so any help would be much appreciated.
granite crow
Didn't knew that, I will wait, sorry
stuck elbow
no need to be sorry, there is no way you could know
just don't get disappointed with the lack of feedback
manic glacierBOT
solar whale
@sly falcon Finally got a chance to try the NINA 1.3.1 prebuilt binary on and ESP32 breakout via metro_m4 -- no problems.
meager fog
@stuck elbow @umbral dagger heya by chance do y'all know of a readline for microcontrollers/embedded
im lookin around but i figure you might Just Know of a good one
stuck elbow
looks like this one is not implemented: https://github.com/micropython/micropython-lib/tree/master/readline
umbral dagger
Off hand, no. I ended up just writing one in/for CP.
meager fog
i meant in C/C++ sry
stuck elbow
ah, no, sorry
meager fog
np trying out eLua, works but the REPL is basic and annoying
granite crow
@stuck elbow I won't :)
umbral dagger
stuck elbow
micropython's repl is actually better than python's was at the time
meager fog
ok yeah i might try that microrl
i dont need everything, just like backspace to work 😄
umbral dagger
Emacs on one line!
main meteor
Heh, reminds me of the days when I'd have to use stty or ioctl to set "cooked" mode.
neon dragon
Does anyone know how to add nrf52 libraries to CircuitPython? I need app_timer (part of the SDK).
neon dragon
I need an RTC timer. The nrf52 has 3, one is used for BlueTooth, one by CircuitPython's RTC library, the 3rd one by the app_timer library (RTC1). I could just grab RTC1, but this might brake something else down the road. Or I could modify the RTC library and share the timer (I believe it uses RTC2). Application: wakeup from deepsleep.
stuck elbow
I can't really help you with this, you might want to come back late next week when everyone come back from pycon
or open an issue
neon dragon
Would it be OK to do a PR of a start and ask for help? I'd also like feedback if I added my module correctly to CircuitPython (before going too far).
crimson ferry
@sly falcon Same, no problems running NINA 1.3.1 since April 24 on a Feather ESP32 via Feather M4.
solar whale
@sly falcon also cloned your repo and built NINA 1.3.1 from source (against esp-idf-3.2) -- all good!
stuck elbow
@neon dragon possibly
solar whale
@meager fog -- FYI -- just tried the ESP32 passthru for the Metro M4 https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/master/Adafruit_ESP32_Arduino_Demos/SerialESPPassthrough to load a new .bin to the ESP32 on a Metro_m4_Airlift_lite -- worked great!
meager fog
@solar whale yay
exotic pumice
someone oughta write a telnet client for them esp32 metro m4s
so I can BBS it up without just piping my laptop to the display
piping my laptop to the display is fun and all
but a real mobile BBS client would be cool as...
exotic pumice
haha
stuck elbow
or even better, add a small keyboard and make an irc client
exotic pumice
It's tough to find a good keyboard
I wonder how many pins those blackberry ones take
answer: 20
i2c port expander I guess
hmm
I'll call it the blinkaberry
stuck elbow
make your own
scarlet maple
socket library might be enough for basic telnet, the pain might be in doing terminal emulation. https://test-circuitpython.readthedocs.io/en/again-docs/docs/esp8266/tutorial/network_tcp.html
exotic pumice
terminal emulation is built in sorta
oh mans I gotta pipe the star wars movie to this
stuck elbow
exotic pumice
display's too small 😦
yeah I've been meaning to get one of those
I'd like it more assembled than it is currently
stuck elbow
I have the hackaday belgrade badge
I'm thinking about trying to make something similar, but with the buttons on the back side, a la those two-part keyboards
exotic pumice
I like the blackberry keyboards
stuck elbow
so you can hold it and touch-type at the same time
of course you wouldn't see the buttons then, but you learn where they are quick enough
stuck elbow
hehe, too few projects?
exotic pumice
oh totally
between all the rust stuff, and all the c64 stuff
I have nothing to do
stuck elbow
you know that rust now supports samd21?
stuck elbow
awesome
I'm meaning to try rust since like 5 years, but I never have a project for it
exotic pumice
use it anywhere you'd use C
or python for that matter
it's got the high level features like iterators and stuff, with the performance of C
stuck elbow
well, I only use C where I have to, because the project I contribute to is already in C
exotic pumice
right
idk I think it's simple and high level enough to replace python too but some people disagree
stuck elbow
the write-compile-debug cycle is too long
exotic pumice
fair point
exotic pumice
@stuck elbow do you know how to connect a linux terminal output to my /dev/ttyACM0 input? I googled but didn't find much useful
I can do it with an intermediary echo but I wanna just hook up the whole pts to the tty
I think I did it actually but something got confused
probably control characters
screw it, I'll write a bash function
simple pulsar
screen /dev/whatever BAUDRATE
exotic pumice
that connects input to input
I'm connecting output to input but it's not all it's chocked up to be with all the control characters and weirdness
simple pulsar
I think that's going to be the inherent nature of the raw terminal output
simple pulsar
I've captured stuff with script command before and then cleaned it up as needed but that'll be hard/messy with anything typed. And that approach isn't realtime
orchid basinBOT
timber mango
asking just to be sure:
there's no way at all to use circuitpython on samd21 or samd51 boards that use a crystal other than 32kHz, right ?
(I have a board with 24MHz crystal on Pins A14/A15)
quasi fjord
I haven't built circuitpython myself, but that sounds like something that would be adjustable is some sort of board definition file. The published builds probably wouldn't work because they're going to configure the chip or whatever default 32kHz crystal then stall when it isn't there to generate clock ticks, but given the breadth of boards CP runs on there has to be some board-specific init function you can override to configure for a different external crystal. I foresee a lot of digging in datasheets in your future
stuck elbow
I'm using it on boards that don't have a crystal at all
exotic pumice
yeah it's probably easier to pretend you don't have a crystal than to adjust to a different frequency one
north yacht
Hi all, first day here, first use of my Metro Airlift lite. Am I correct that this is not considered an "Express" board? (I tried copying the entire /lib directory from adafruit-circuitpython-bundle-4.x-mpy-20190503 and it ran out of space.
lofty nova
@north yacht , answered to the same question in #help-with-circuitpython
tulip sleet
@timber mango The clock initialization code would have to be changed.
stuck elbow
that is a lot of forks, let me guess, the sprints have started?
river quest
🍴
raven canopy
🏁 🏃
warped pendant
hi what chat would cover hallowing badge??
stuck elbow
depends on what you are running on it
warped pendant
cp on hallowing just trying to load the badge and i don't know what i've done i'm getting error on the display and green/fade to cyan ---yellow -- blue which i'm thinking is line 111 -- in the lib should have touchio and pulsio? maybe that is the problem?
stuck elbow
solar whale
@gentle bronze I saw that there was an update to the nrf52 bootloader and that it uses the SOFTDEV_VERSION 6.1.1 - It looks like CircuitPython is still using 6.1.0 -- is there a problem with that? I tried it with feather_nrf52840_espress and it seems ot be working OK, but I can't get it work with a pca10059 dongle. CircuitPython keeps going into safel mode. Have I missed some steps. - is the 2.11 bootlader compatible with Circuitpython at this time?
upbeat plover
@raven canopy i made some changes to play_melody() can you test them?
manic glacierBOT
manic glacierBOT
manic glacierBOT
You can see the guide on how to do it here: https://learn.adafruit.com/circuitpython-essentials/circuitpython-i2c
exotic pumice
If I wanted to write a driver for an 8-bit parallel display, would I need DMA?
how parallel is parallel? is one after another at 120MHz close enough?
stuck elbow
there is already support for parallel displays in displayio, so it's just a question of coming up with the correct init sequence and commands
exotic pumice
I'm trying to do it in rust tho
stuck elbow
well you can bitbang it if you don't care about speed
exotic pumice
ok, I think it will be fast enough for now
just wanted to make sure it didn't have to actually have all the pins flip at the same time for it to work
stuck elbow
no, you have a clock pin
solar whale
@gentle bronze It looks like the issue with the pca10059 is in CP -- If I revert to the beta.7 build, CP boots OK with the new bootloader -- It falis with rc.1 or the current master -- I'll open an issue in CP.
manic glacierBOT
exotic pumice
@stuck elbow I don't see a clock pin
stuck elbow
@exotic pumice it's RD or WR depending on whether you read or write
exotic pumice
Oh
stuck elbow
basically you set the pins to whatever states you need, and then wiggle that pin
and that "latches" the states and writes them to memory
exotic pumice
Thanks
stuck elbow
the datasheet has details of the protocol
exotic pumice
well, I got it written, now it needs a long debugging session
manic glacierBOT
manic glacierBOT
manic glacierBOT
Please post photos of your setup in the forums:
https://forums.adafruit.com
We can not recreate this issue.
Adafruit CircuitPython 3.1.2 on 2019-01-07; Adafruit Trinket M0 with samd21e18
>>> import board, busio
>>> i2c = busio.I2C(board.SCL, board.SDA)
>>>
remove resistors:
Adafruit CircuitPython 3.1.2 on 2019-01-07; Adafruit Trin...
orchid basinBOT
manic glacierBOT
halcyon breach
Hello
slender iron
@stuck elbow it was the mentored sprints. regular sprints start tomorrow morning (10 hours or so)
<@&356864093652516868> Reminder that we aren't meeting this week. Next week, we'll be back and ready to roll after a wonderful but exhausting PyCon.
exotic pumice
why do my display drivers never work lol?
tulip sleet
PyCon 2019 keynote by @fathom trellis: LIght Up Your Life -- with Python and LEDs!
https://youtu.be/35mXD40SvXM
slender iron
@knotty cypress brew cask install https://raw.githubusercontent.com/Homebrew/homebrew-cask/c421118b9d7f29e9bdb3c9b92c5d971f60248479/Casks/gcc-arm-embedded.rb
Here is the sprint doc: bit.ly/circuitpython-pycon2019-sprint
@noble cliff https://bit.ly/circuitpython-pycon2019-sprint
plucky flint
👋 to PyCon sprinters... 😃
knotty cypress
@slender iron succeeded ( 10.14.4 w/xcode select)
plucky flint
@stuck elbow yeah.... on Mu. Today is triage day. Tues/Wed = merging/coding etc....
knotty cypress
screenshots and instructions for adding a volume on MacOSX https://learn.adafruit.com/building-circuitpython/macos
<go menu>
Go: Utilities
<disk utility icon>
Launch Disk Utility.app
<add volume>
+ volume
<add apfs volume>
Add APFS volume to container:
name: circuitpython
Format APFS (Case-sensitive)
click Add
<new container in finder>
New volume appears in finder
Note: before starting the "Build CircuitPython" steps, first open a bash terminal and cd to /Volumes/circuitpython/, and to perform the steps there
@plucky flint I hope there will be a lot of newcomers!
raven canopy
👋 to sprinters from me as well!
quick crow
@knotty cypress @noble cliff https://prod.liveshare.vsengsaas.visualstudio.com/join?2BBA0C4B8351198588C46A2D38A2B00258C5
upbeat plover
will Mu ever support other languages like zh_Latn_pinyin?
@raven canopy i have suggestion for code change can you review the reply?
raven canopy
@upbeat plover i'll look. working from home today, so i'll be bouncing around things.
upbeat plover
best place to work
umbral dagger
@upbeat plover The only place to work.
prime flower
@knotty cypress Heya - I can add those images to the guide, come by the table I'm at or get my attention and we'll add them in 😄
knotty cypress
images from macos
upbeat plover
@raven canopy your code works well, much better way of writing that thank you for teaching me lots... didnt know anything about enumerate() and had never done a if not equal to before that is much nicer then if else
raven canopy
lol. Nina dropped a "not out yet. don't clap". 👏
raven canopy
hehe, didn't even think about the context of my statement. not the NINA firmware. i'm watching the PyCon talk that Dan linked earlier. Nina Zakharenko is the speaker. https://youtu.be/35mXD40SvXM
@upbeat plover re "teaching": you're welcome. writing long form (if...elif...else) isn't necessarily bad. its usually a good thing actually, as it increases readability/maintainability for future readers. but, on MCUs, and especially the CPX since it's quite constrained, every byte counts. i've learned a lot of that since i've been around here, so i'm merely passing it on. 😄
manic glacierBOT
upbeat plover
yes i was thinking in this case too it probably cuts down how many steps it take to do that if else, so making code faster?
raven canopy
yeah, a tiny bit of that too. not wasting cycles on unnecessary code is a good universal practice.
civic pebble
Following the tutorial to build circuitpython, running make -C mpy-cross tells me I'm missing msgfmt. Ideas? I'm the guy in the blue polo closer to the hallway side of the room.
raven canopy
i'm watching these translation PRs pop up, hoping for some Pirate addtions. 🤞 😬
@civic pebble i'm pretty certain that's related to the gettext library.
@civic pebble what OS are you on?
civic pebble
macOS
raven canopy
i would check that this step installed gettext:
brew install git python3 gettext
yep, I've got gettext
raven canopy
🤔
civic pebble
got it
raven canopy
🎉 yay!
civic pebble
raven canopy
hehe. i scrolled past that one when i searched...
i wonder if it would be beneficial to link to that issue in the learn guide...
civic pebble
Also - if anyone wants some help with the music tracker, I'm remotely musical and wrote a mini-tracker for playing stepper motor music on arduino a couple weeks ago
trim elm
@tidal kiln I made the changes you suggested and made a new PR. Thanks for the feedback.
Although it failed to build, so I may have to fix some stuff
Ok. I fixed the issue
tidal kiln
@trim elm thanks. do you have hardware to test?
trim elm
I do. Although the build failed again, so I'll get back to you in a few minutes
tidal kiln
yah, looks like just pylint cosmetic stuff
trim elm
Yeah. I just put in another commit where I fixed the line continuation error, although it hasn't built yet
tidal kiln
otherwise code looks OK and worth checking out...with an ADS1015..see if it return 16bit at max, etc.
trim elm
Yeah. I tested with the ADS1015 and verified that I didn't mess up the code for the ADS1115 also
tidal kiln
cool. if you can post some of that testing details and results in the PR comment thread, that'd be awesome.
isn't linting fun. 😃
stuck elbow
better to get that automatic than from a human
