#circuitpython-dev

1 messages Β· Page 143 of 1

tulip sleet
solar whale
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list of shame πŸ˜‰

robust coral
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On Linux and OS X, can the "sync" mount option make all of these editors safe?

tidal kiln
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@robust coral in general, yes

umbral dagger
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I tend not to edit directly on the board. It's nice to have a copy on my disk in the event that something bad happens.

manic glacierBOT
raven canopy
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@umbral dagger that's what I've been doing, too. Granted, mostly for dev. My workflow is 4 windows (samd at least): REPL, two file windows, and IDE(s). If only windows could add "all windows equal" or quadrant to the stacked/side-by-side options.

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I have been meaning to give mu a run though...

manic glacierBOT
solar whale
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I have begun to appreciate mu when I do want to work directly on the device FS. It has been working well for me.

manic glacierBOT
umbral dagger
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@raven canopy For me it’s emacs, a terminal for repl, and a file manager window. If I’m hacking on CP itself (as opposed to working with it) add another terminal for building. I have a 27” 4k display so there are always other windows floating around. Typically netflix or a music player.

rotund basin
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Hi πŸ˜ƒ

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Any chance SD card mounting for Cpython is stable for read and and write ?

solar whale
rotund basin
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@solar whale last time I was in the room it was gitter and before release 2. I want to know if storages can mount any SD card or does it have to be the feather ?

solar whale
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I've used the featherwing (adalogger) and a breakout board as well as the m0 Adalogger. All seem to work OK. There were some reports of issue with some types of SD Cards. Not sure where that stands, but SanDisk cards have worked well for me.

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I'v also used the SD card on aTFT display.

rotund basin
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@solar whale perfect thank you , I can make my robot now

solar whale
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Good luck!

slender iron
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oh! @rotund basin who was doing the lawn mowing robot? welcome back!

tidal kiln
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Sweep!

rotund basin
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@slender iron yes it's me robot mower smartmow sorry I was away for a while

slender iron
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no problem @rotund basin! How are things?

rotund basin
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@slender iron I'm good I'm thanks for asking πŸ˜ƒ how are you?

slender iron
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I'm great! circuitpython is going super well

rotund basin
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Great I'm going to use it for my robots πŸ˜ƒ

slender iron
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awesome!

stuck elbow
slender iron
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@stuck elbow thats awesome

stuck elbow
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finally writing the docs, since I'm on a sick day today

slender iron
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docs are good πŸ˜ƒ

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having sick days is good too but having to use them isn't

stuck elbow
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I'm starting to think about asking for a half-year sabbatical at work, just to finish all the projects properly

slender iron
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that'd be fun!

sleek storm
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Where do I find the API docs for CircuitPython_CircuitPlayground?

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I just got a CircuitPlayground Express I'm playing with

tulip sleet
crystal pumice
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hey guys, what hardware do u reccomend to purchase with the M0 Express in order to tinker with different libaries?

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like leds, servos, sensonrs and more πŸ˜ƒ

idle owl
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Sounds like you already have a pretty good idea πŸ˜ƒ This category has a lot of options for compatible hardware: https://www.adafruit.com/category/956 Otherwise do a search for NeoPixels or DotStars (different libs for both, but both LEDs), servos and so on, if it's not included in that category to pick something.

crystal pumice
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10x

bronze geyser
idle owl
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Thank you @bronze geyser!

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@bronze geyser That's a wonderful write-up.

idle owl
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@slender iron Do you have a few? I'm having trouble getting sphinx to build. I remembered to add the mock_imports, but it isn't fixing this issue, google isn't helping, and I'm not sure where to go with it.

slender iron
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yup

half sedge
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Updating my feather M0 express to 2.2.1 and installing @meager fog AVR programmer.

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What could go wrong? This is supposed to work, right?

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I have the signature, I was able to compile the C code on a Pi.

slender iron
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@half sedge it should work!

half sedge
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You should fill the missing word with Gemma M0 and Trinked M0.

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And the bot does not like me to use x times X.

slender iron
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where is the typo?

stoic gazelle
half sedge
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@slender iron It seems to be missing words, between "Remember for non-express boards like the" and ", you'll need to manually install the necessary library from the bundle:"

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Anyway, I have the famous "SPI transaction failed". I powered my chip and verified there is a common ground and there is a cristal on the board.

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I inverted MISO and MOSI (just in case) and normally I use the right pin for reset.

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It is a Tiny45, so I believe it is 3.3V

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I don't see where I made a mistake, but since I don't know what I am doing, anything can be wrong.

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Ok, I give up for tonight. Maybe redoing the wiring tomorrow will fix it. Or the pin on my crazy clock do not follow the standard order.

slender iron
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@half sedge added Trinket M0

timber mango
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the trinket pro is the same as the the trinket M0

slender iron
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no, the trinket pro is older

timber mango
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okay

slender iron
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I switched it to using the featherwing library

idle owl
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@slender iron Np, looking now

slender iron
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thanks

stuck elbow
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@idle owl watching your talk, I just want to clarify β€” the M0 boards are all 3.3V

idle owl
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Thank you, my answer felt off on that one. I only partially undersood.

stuck elbow
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also, there are both analog inputs (all the A* pins) and one analog output (the A0 pin)

idle owl
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Yah Scott just explained that one too

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I knew they were on there, I couldn't remember the specifics.

stuck elbow
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yeah, it's hard to remember everything on stage

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especially when the audience asks randomly

idle owl
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Yeah there were a couple of odd questions.

stuck elbow
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I think you answered very well to most of them

idle owl
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Thank you πŸ˜ƒ

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@slender iron I updated a word in one spot, otherwise looks good.

slender iron
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ok cool, no worries

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thanks for the proof read

idle owl
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Sure!

slender iron
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finally wrapping that work up

bronze geyser
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@idle owl I am very grateful for your help as well as others here.

idle owl
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@bronze geyser I'm happy to help! You've been doing really well with everything.

idle owl
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@slender iron PR in for joy_featherwing πŸ˜ƒ

slender iron
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will look tomorrow

idle owl
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excellent

slender iron
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time to go have dinner

idle owl
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Have a good one!

slender iron
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you too!

timber mango
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i have question about the trinket m0

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female headers or male headers

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I went with stacking headers. Barely fit but I like them.

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No real room for the fastener, though, if you're used to using them with other target boards that have a bit more elbow room (Feather M0 Express for example).

raven canopy
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@timber mango its kind of purpose dependent.

breadboard: male. 
breadboard->final project: stacking female works well since you can cut the leads after breadboarding. but, they are harder to desolder if you change your mind. 
final project only: depends on your choice of connectors...kind of anything goes.
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and truth be told, that whole list could be rearranged. i guess the minimum threshold is this: "if you can make it work, it's fine."

raven canopy
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blinka Trellis library has addressable light! i was going to put up a video (because blinky!), but my phone's battery said no. are all bitwise operations always this difficult? i eventually had to hand write each step out to grasp what wasn't working... πŸ€“

stuck elbow
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I found sone extra low female headers that I like to use with the trinket. Their pins are long enough that with the thin pcb that trinket uses you can even stack them.

slender iron
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@raven canopy yeah, bitwise is complicated. I don't think we should require its use with any of our libraries

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@fading solstice are you looking for more work to do? seems like the examples stuff is done

fading solstice
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@slender iron almost done yes. three more to do. But i can start thinking about more to do. what do you have in mind?

slender iron
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@fading solstice read the docs setup

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I started working on some adabot checks yesterday and I was thinking I could wrap them up today and hand it over to you

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if you'd rather do code then I'm happy to do it

raven canopy
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@slender iron it's all in the back end; user only supplies a number 1-16. Just like the HT16K33 library, using non-bitwise, hard variables would pointlessly use up memory. At least, that's how I perceive it.

slender iron
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@raven canopy thats good. what do you mean by hard variables?

raven canopy
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Something like led1 = b'0x00\0x04\.... for each led.

slender iron
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ah, sure

sharp bramble
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Hi CP team... please feel free to redirect me if this question belongs somewhere else (a ticket on a Github repos, forum, etc.). I'm encountering crashing bugs with the Adafruit packaged (?) version of Mu on some versions of OSX. Here's an image of the report I got from a student: https://ibb.co/csnZUG

imgbb.com
mu crashing

Image mu crashing hosted in imgbb.com

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It looks like it was built against a Python for 10.12, and they're running 10.11, which might be a source of problem (or might not)? I can switch to writing code in a text editor, and have them save to the CPx directly, but I thought I'd give Mu a go.

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Naturally, the one machine I tested on, nothing went wrong... πŸ˜„

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I'm not sure if this is a Mu repos ticket, or an Adafruit repos ticket, or a forum question, or...

idle owl
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That's a good question.

manic glacierBOT
idle owl
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@sharp bramble Ok. Post an issue to the Adafruit Mu repo with all of this information. I need to think on whether it makes sense to post to the forums as well or not. Or let someone else give feedback on that too. But I think the Adafruit Mu repo is a good place to start since that's where we're keeping the versions Adafruit built.

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I think I had issues with the .app version as well

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I had to use the command line one that has the odd ternimal-launcher thing, but it worked ok. Did you have your student try both versions?

sharp bramble
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No; I don't know if I knew there were two versions. I'll work with the student and see if we can get one working and one failing, which would be useful unto itself.

timber mango
idle owl
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Let me make sure it's still the case that there's two. Something could have changed since the last time I tried Mu.

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It unzips to a terminal-launcher version of Mu. I'm not on the same OS as your student though, so the fact that it works does not imply it will for your student.

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@sharp bramble Make sure your student tried that version. It may be that they did and it doesn't work.

sharp bramble
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Yes. That's the link I put into my materials.

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I had to verify.

idle owl
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Ok. It was worth looking into, but that won't fix the issue. I would file an issue and we'll go from there.

sharp bramble
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My Mac is currently up to 10.13, which is ahead of the 10.12 that Mu was built on. I will encourage the student to update their OS, and see if that fixes it.

idle owl
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That might also help!

sharp bramble
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I'll still file the issue, as it could be an OS/Python build issue.

idle owl
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Thank you!

sharp bramble
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That's my guess, from the error message. It looks like a symbol is missing deep down in the Python build, which could be an OS-versioning problem. How to fix that... ?. Perhaps building Mu on an older OS? Or, against an older Python? I don't know. I'll file the ticket for now, and will file any findings I have to the ticket. Thank you again, @idle owl .

raven canopy
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Thanks @timber mango. I understand the operators and most of the theory. This specific operation just stretched my understanding by having to hit specific values.

idle owl
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@sharp bramble You're welcome. Thank you for filing the issue. That's how we make things better πŸ˜ƒ

sharp bramble
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I can't file issues on that repos.

idle owl
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Hmm ok

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So I see

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@sharp bramble I will look into that and get back to you

sharp bramble
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Thanks. And, I'll see if I can get a Mu build going on my machine this weekend. That won't explicitly help, but it would get me to a point that I can dig deeper in the future.

timber mango
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@raven canopy I use gforth to tell me the answers as it already has a full vocabulary for this. Some calculators (galculator comes to mind) have similar function, but I like gforth. I think bc or dc will also do this (these are all linux/unix available; dunnough about the Other Platforms Available to you. )

sharp bramble
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@idle owl I assume this thing will email me if you at-mention me? I'm not a Discord expert.

idle owl
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@sharp bramble No, if you have Discord setup to send notifications, it'll send you a desktop or push notification (if you're on mobile). So you'd have to keep checking back if you don't have it setup that way. There's no email options that I'm seeing.

sharp bramble
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Groovy.

idle owl
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@sharp bramble Ok issues have been enabed on the https://github.com/adafruit/mu repo. Please file your issue there, and include all the info we discussed. Thanks so much!

GitHub
adafruit/mu

mu - A "micro" editor for MicroPython and the BBC micro:bit. Written in Python and Qt5.

idle owl
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Trying to get Mu editor installed on a fresh Linux install and it is not going well.

stuck elbow
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what's wrong?

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you just unpack the binary and put it in any directory and it just works...

idle owl
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I'm using pip3 to get it and it's failing. Is there some other place I was supposed to get it from?

stuck elbow
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how is it failing?

brazen cave
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is it possible to code a trinket or something similor to send a pre formed tweet at the push of a button? I'm completely new to this stuff

idle owl
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ok, Running Python 3.5.3. First it told me pip3 wasn't updated enough. And pip3 install --upgrade pip didn't work. So I ended up finding that you can download pip3 from pypa and so I did that and updated it. Now when I do pip3 install mu_editor, it's telling me it can't find pyqt5, can't find a version that fits, no matching distrubution found. So I looked that up and it says you get that error if you're using an unsupported version of Python, which I'm not (supports 3.5 and later)

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So I tried installing that separately and it's giving the same error.

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Their website isn't really helpful. and google is failing me.

stuck elbow
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wait, you are using pip to install things globally?

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what distro is it?

idle owl
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um.. yes. Linux Mint 18.whatever it is right now... I literally just installed linux on this machine.

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10 minutes ago.

slender iron
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@brazen cave It would be hard with a Trinket because it doesn't have any way to connect to the internet.

stuck elbow
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just sudo apt-get install python3-pyqt5?

idle owl
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oh I tried to do it using pip3. let me try that.

stuck elbow
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install all the things you can from your distro's packages, only install the things you don't have there with pip

idle owl
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ah

brazen cave
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@slender iron what would you reccomend to use?

slender iron
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@brazen cave The Feather Huzzah with ESP8266 or maybe a raspberry pi 0 W

brazen cave
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I want to keep it fairly small, so I'll try a huzzah

slender iron
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πŸ‘ Are you going to use CircuitPython or Arduino?

idle owl
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@stuck elbow do you always use pip in venv then?

brazen cave
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i was going to try CircuitPython

slender iron
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cool πŸ˜ƒ have you used the twitter API already?

stuck elbow
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@idle owl I use pip -u

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--user

brazen cave
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i used it with php, but that was some time ago

slender iron
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might be worth doing with desktop python first

idle owl
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@stuck elbow ah I see.

brazen cave
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i haven't done any real coding for a long time, i figured it was time to learn something new

idle owl
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Now it's failing on qscintilla. Googling to see if I can figure out how to get it installed. apt-get doesn't have it, and pip3 is failing to find it.

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hmm. Says 64-bit linux on the package page. I'm fairly certain this is 32bit.

stuck elbow
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weird, my mu doesn't need it

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@idle owl sudo apt install python3-pyqt5.qsci

idle owl
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Oh, you're good

stuck elbow
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decades of experience

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also 'apt search'

idle owl
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weirdest part of this? I just tried installing mu_editor again and it failed on something else. this is rather confusing. And not great because I went through this so I could explain to someone else how to get a lab-computer image setup for me to work with CircuitPython.

stuck elbow
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I think we need to have two commands in the instructions, one apt-get with all the deps, and then the pip3

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but of course then you need an rpm version for the other distros

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and possibly pacman, etc.

timber mango
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@slender iron im having an odd thing occur, with the itsybitsy m0's

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if i erase the chip, cpy doesnt re-create the FS

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but it works with existing FS

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i wonder if something changed

pallid mural
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how do I uninstall circuitpython from my circuitplayground express board?

slender iron
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@timber mango how long are you waiting? there is a delay now

timber mango
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@pallid mural with arduino?

pallid mural
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circuitplayground express

slender iron
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@pallid mural to use Arduino just upload a sketch

pallid mural
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I mean uninstall the circuitpython.uf2 from my circuitplayground express board

timber mango
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@slender iron a while, i got the pulsing green LED, repl works, and a 'ghost' drive

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ill try again a bit

idle owl
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@pallid mural There is an erase file that will work, but I'm not sure what you're getting at. There's always something on the board, you don't exactly uninstall CircuitPython

slender iron
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@timber mango hrm, weird. dan did tweak it to try and not wipe it when we don't mean to

pallid mural
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it doesnt read any other uf2 files now

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like the makecode uf2 files

idle owl
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Can you still get to the bootloader?

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By tapping the reset button twice?

pallid mural
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dunno how

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oh

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yeah

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ok there I go

idle owl
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Ah yeah, you need it to be in the bootloader to accept .uf2 files

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But it sounds like you needed the bootloader

timber mango
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@slender iron maybe somethings a bit different with the way this flash works, but ill keep going and just write over the FS

pallid mural
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yeah I fixed it after doubleclicking the reset button

idle owl
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Excellent!

slender iron
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@timber mango maybe. is the flash chip different from the one on my itsybitsy?

idle owl
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@stuck elbow I installed .qsci and matplotlib, and now it's still failing on qscintilla. I'm realising it says "requirement qscintilla==2.10.1" which is not the latest version. So that means likely the version I installed does not ==2.10.1. Which I guess means it needs exactly that version? oi.

timber mango
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oof maybe. can you read off the marking

slender iron
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let me find it

idle owl
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Weirder, if I sudo pip3 install mu_editor and pip3 install mu_editor I get different results. It's failing on pyqt5 without the sudo. I'm kind of lost.

stuck elbow
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@idle owl that's stupid 😦

pallid mural
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pip is unreliable...

stuck elbow
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package management is hard

pallid mural
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I cant install tensorflow x86 on my laptop with a x86 processor

stuck elbow
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@pallid mural are you sure it's not amd64?

slender iron
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@timber mango 8N?28 OE1167

stuck elbow
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most cpus these days are 64 bit

pallid mural
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the intel x86 version of tensorflow just throws an error

stuck elbow
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i5 is amd64 arch

idle owl
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.... I just figured out why sudo and not are giving different results. With sudo it's using pip3 v. 8.1.1, and without it's using the new version I installed, 9.0.1.

timber mango
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@slender iron yah i think youve got the 1mb version

slender iron
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@timber mango woudl you like me to try it? otherwise I can do an order monday to get a newer one

pallid mural
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all righty, I have solved my problem with my circuitplayground express

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bye now

timber mango
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tan, nah, ill figure it out

slender iron
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kk

idle owl
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so pip3 install mu_editor finds the matplotlib I installed, then tries to do whatever it does with it and fails with Command "python setup egg_info" failed with error code 1 in /tmp/pip-build-blah/matplotlib

slender iron
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bye @pallid mural

idle owl
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@pallid mural Bye!

timber mango
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can at least get the test procedure worked out. i hope i didnt mess something up with the 2.2.1 release 😦

slender iron
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we can always do another release

idle owl
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I googled and a lot of things say to run pip3 install --upgrade setup-tools but this fails with no matching distribution found.

timber mango
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no! there are limited release numbers. you dont just grow on trees !!!1

slender iron
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troll πŸ˜›

timber mango
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ok ill keep hackin' i may send you or dan an itsy

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zooom

idle owl
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@timber mango fancy! have fun πŸ˜ƒ

slender iron
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sounds good πŸ˜ƒ

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I'm in the zone fixing up RTD

idle owl
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I'm.. about to give up on installing mu.

stuck elbow
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I don't even understand why it needs half of those dependencies

idle owl
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neither do I.

timber lion
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try pycharm CE and the micropython plugin

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it's pretty nice

idle owl
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I already use PyCharm for my environment. How did you get the MPy plugin to work with our stuff?

timber lion
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just tell it you're using an esp8266 but point it at our board's serial port and it can show repl

idle owl
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ahhhh

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Ok

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Nice!

timber lion
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then edit files directly on the chip FS

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yeah it's a little hacky πŸ˜ƒ

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but you get some nice auto completion etc

idle owl
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I'm trying to get Mu installed for a beginner workshop I'm running in April. It's not for my everyday use

timber lion
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not for the circuitpython apis unfortunately

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ahh yeah smart idea to look at mu there

pallid mural
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Norton 360 doesnt like mu

timber lion
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hrm you might try pip installing it in an anaconda environment

sick creek
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@idle owl nice Circuit Python teaching video you did

idle owl
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I'll give that a try

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@sick creek Thank you!

timber lion
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anaconda gives you an isolated python environment that i think automatically has all the messy Qt stuff setup

idle owl
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@timber lion good to know. Thank you. I'll definitely give that a try

timber lion
idle owl
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I've used it before, not in a while though

timber lion
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the way it works is you run a command window that opens an anaconda session and any python, pip, etc. commands you run there are done with anaconda's python

idle owl
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I had it installed for a conference I went to last June, but didn't use it afterwards so removed it

timber lion
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vs. any system installed python

idle owl
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ahh ok

timber lion
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yeah it's nice when system python is in a weird or unknown state.. basically ignore it all and start fresh πŸ˜ƒ

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i think they have some little getting started videos too https://www.anaconda.com/videos/

Anaconda

View recordings of our webinars and conference presentations to stay abreast of the latest developments in Anaconda's products and services.

idle owl
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I installed Linux a half our ago or something fresh. Figured it would be simple to get Mu going

timber lion
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ouch yeah Qt makes it really tricky i've found.. it's just another dimension of possibly different versions of things

idle owl
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I need to give someone else steps to install Mu on an image for a set of machines in a computer lab at the convention, so if Anaconda works, that would be a lot easier than fighting with installing everything manually.

stuck elbow
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if you don't need the latest version, there are binaries at codewith.mu

idle owl
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I was under the impression the binaries were buggy. So I was trying to get latest.

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Hah. I'm starting to think that the issue here is that this machine is 32 bit.

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Can't run the Mu binary

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so

stuck elbow
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that old?

idle owl
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Yes.

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2003 if the internet is accurate.

stuck elbow
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14 years, nice

idle owl
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Right?

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hah! Truth. Also... the bot doesn't like to talk about growing up apparently.

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I have to give this machine credit though, it's trucked through everything until this.

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IBM ThinkPad.

stuck elbow
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ah, before Lenovo ruined them, nice

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and no management engine

idle owl
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Got it from a friend a few years back. Apparently I need to look into getting another machine for Linux testing though.

manic glacierBOT
tulip sleet
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@idle owl do you want a desktop or laptop?

idle owl
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@tulip sleet Laptop would be easiest to deal with.

tulip sleet
idle owl
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@stuck elbow So theoretically, a fresh linux install would require pip3 be installed, then pip3 install mu_editor, and then it just works?

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@tulip sleet Good to know, thanks.

stuck elbow
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@idle owl I don't know, I would still install the big stuff, like QT, with apt

idle owl
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Ok. I'll hold off on telling them what to do until I can run through it myself.

stuck elbow
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let me try in a fresh virtualenv

slender iron
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@stuck elbow fyi, I got back to you on the structarray PR

stuck elbow
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@slender iron thanks, looking

idle owl
#

@stuck elbow It's not super time critical. And it's something I want to know how to do anyway.

stuck elbow
#

@slender iron looks good!

slender iron
#

awesome! Thanks for the review @stuck elbow

idle owl
#

@stuck elbow Awesome, thank you πŸ˜ƒ

slender iron
#

I was way behind on getting RTD going for new drivers

stuck elbow
#

they are a bit annoying, with the manual hook installation

slender iron
#

yeah, its stupid that the itnegration from github's side no longer works

#

I figured out how to compare the versions RTD has vs the latest on github

#

so I can detect when its not working

idle owl
#

fancy

slender iron
#

yeah, our repos that need work count shot up πŸ˜ƒ

#

oh man, crash!

idle owl
#

Oi, oops. I got way ahead of myself on the PR I put up. Totally blanked on all that. I knew it needed to be done.

slender iron
#

np

idle owl
#

What's weirder is I swear I updated some of that when we were talking.... oh. wait. I was editing the wrong file. I just saw that.

slender iron
#

πŸ˜ƒ

raven canopy
#

@slender iron now that i have 1/2 of the Trellis library working, I'm contemplating the pros/cons of combining it with/utilizing the HT16K33 library. I'll put it up on that PR comment thread (or elsewhere if you'd rather). I'd definitely like to get ladyada's perspective on what she'd like to see (it is her company, afterall :D).

slender iron
#

@raven canopy ok, I'll follow up there

raven canopy
#

alright. i'll put up a link here too once i get it posted...many eyes and all! πŸ‘€

slender iron
#

sounds good. I probably won't reply until monday because I'm heads down on RTD now

raven canopy
#

all good. at this point, it's "easy" to go either direction. i'll be hacking the button part all weekend most likely.

idle owl
#

@slender iron Ok, updated. for whenever you've got a moment.

tulip sleet
#

@slender iron great on RTD . I was trying to point someone to library doc yesterday and had a lot of trouble. Was going to bring it up but you’re being proactive.

slender iron
#

yup yup, expect lots of fix PRs

#

I only have an hour or so before I have to go do pottery πŸ˜ƒ

tulip sleet
#

I am about to go to a concert. Ttyl

slender iron
#

have fun!

brazen cave
#

is there much of a difference between circuitpython and regular?

tidal kiln
#

regular = ?

brazen cave
#

Normal python?

analog drift
#

You mean syntax wise?

brazen cave
#

yup

#

I'm compleetely new to this, the only languages I've ever used are html and php So I'm gonna be asking a lot of questions

analog drift
#

I am currently trying to get my feather M0 installed πŸ˜›

#

I know python. I have yet to work with CircuitPython

slender iron
#

the syntax between the two is the same but the libraries (aka modules) may be different

analog drift
#

Which syntax version btw. Python3.5? Or Python2.7?

slender iron
#

3.4

brazen cave
analog drift
#

Is there any interest to get async syntax?

slender iron
#

long term yes, short term no

analog drift
#

haha

#

Fair enough

#

What are the short term goals for the project then?

slender iron
#

new hardware including bluetooth

#

I have a draft blog post thats a better answer

#

just gotta polish it up on monday

#

if you look in the pinned messages there are recordings of the meetings where we cover it too

analog drift
#

Thanks

slender iron
#

np

analog drift
#

I was pretty excided when a coworker at work showed this project (CircuitPython). So glad there is something besides C/C++ out there for microprocessors to do some fun side projects. I am sick and tired of using the alternatives.

#

Btw, I am getting SAM-BA operation failed trying to flash adafruit-circuitpython-feather_m0_basic-2.2.1.bin onto the Feather M0 (with WiFi) using bossac. The bootloader ramping/flashing red light is indicating it is in bootloader mode as far as I can tell.

idle owl
#

I think you need to specify the port if you're getting that error

#

Or at least specifying the port has resolved that issue for some.

analog drift
#

@idle owl No that is definately it. However, I have two ports for the WiFi module. Should I play roullete to seee which one I guessed right?

idle owl
#

That's the best I'd have to offer, so go for it πŸ˜ƒ

analog drift
#

Well. If it fails, I could always buy another one right πŸ˜‰

idle owl
#

I didn't think it could break it...

analog drift
#

Sorry. That was just a joke

idle owl
#

πŸ˜„ fair enough.

analog drift
#

But flashing to the other com port COM5 did it

idle owl
#

Excellent!

analog drift
#

flashing to COM1 gave the error. Which I assume is what bossac tried to flash to by default

idle owl
#

Makes sense

#

For the most part, bossac gets it right. Sometimes you have to specify.

#

Or if you have an older version, I think. There were a few cases where it needed port.

analog drift
#

Yea, this WiFi Feather M0 came up as two ports. I used Putty to look at COM5 and it printed out WiFi access points, where COM1 didn't do anything.

#

I'm guessing the applicaiton to list out WiFi access points was a testing flash to ensure quality of the device?

idle owl
#

No idea

pastel panther
#

πŸ‘‹

raven canopy
#

<@&356864093652516868> I am working on an Adafruit Trellis library, and would like to get your thoughts on something. I'd like to ask you all to take a look at a comment (link below) on a closed PR for the HT16K33 library. Topic Summary: standalone Trellis library vs combining it with HT16K33 library. Thanks in advance for any time you take looking, and any discussion or suggestions you submit.
https://github.com/adafruit/Adafruit_CircuitPython_HT16K33/pull/3#issuecomment-360961990

timber mango
#

@raven canopy I would tolerate the inelegance and keep them separate, as less configuration / translation is a win for the Beginner, who is generally the target audience. Also, smaller footprint.
I think the idea is that the people who do the main push on the 'parent' library are in a better position, down the road, to think more deeply about how the children of that library are making use of it.
Eventually the API simplifies and children of the lib start looking a lot more alike.

All that said, due to form factor factors (!) different pins on different target boards perform equivalent functions, and remapping comes with that.

If I sound like I know what I'm talking about, that's more style than substance. ;)

raven canopy
#

Thanks @timber mango. I'm going to hold any additional comments I have for now...trying to remain neutral. and style has gotten me where I am today...which, I guess could be worse. 😜

#

i'm off to bed. way too little sleep last night.. later all you remaining night πŸ¦‰s

manic glacierBOT
manic glacierBOT
#
tballas
[adafruit/circuitpython] Issue opened: #553 Document that sys\.stdout\.write\(\) and print\(\) replaces a New line character with Carriage Return and New line characters\.

This issue might serve as partial documentation.

This took a lot of digging to find. A carriage return sent over usb serial is replaced with a new line character when sent e.g. sys.stdout.write('String\n') or print('String\n', end='').

The source of the change seems to be the mp_hal_stdout_tx_strn_cooked() function in \lib\utils\stdout_helpers.c
It has the comment:

"Send "cooked" string of given length, where every occurrence of LF character is replaced with CR LF."

idle owl
#

@stuck elbow I tested the RGB display lib change, it's still showing the same problem.

analog drift
#

The tutorial also shows D2 being imported twice when the second import of D2 was meant to be D3. Additionally, the sleep is unreachable outside of the while statement when it needs to be tabbed in.

stuck elbow
#

@analog drift which display?

#

@analog drift you can use any pins for cs and dc

analog drift
#

@stuck elbow TFT FeatherWing - 2.4" 320x240 Touchscreen For All Feathers

#

It is attached via feather pinout configuration

#

So I unfortunately have to use whichever pins it is plugged into

stuck elbow
#

@analog drift would you mind submitting a pull request with the fixes?

analog drift
#

Sure

stuck elbow
stuck elbow
#

@idle owl about that RGB problem

#

@idle owl I think that different modules are wired differently, and some expect RGB while others expect BGR

idle owl
#

ah

stuck elbow
#

@idle owl could you try your module with MADCTL set both to 0xc0 and 0xc8?

idle owl
#

Yeah I left it wired up so I could test it

stuck elbow
#

I think one of them will be correct, but it will be wrong on another module, tec.

#

etc.

idle owl
#

oh you mean one then the other, not set to both at the same time

stuck elbow
#

right

idle owl
#

Setting it to 0xc0 fixed a stripe on it that I thought was a hardware failure, but still shows red. (for blue)

#

8 is still opposite too

stuck elbow
#

this is ST7735 or ST7735R?

idle owl
#

R

stuck elbow
#

and you are changing the right place?

idle owl
#

Adafruit doesn't sell a ST7735

#

no I'm not changing it in the right place

#

Or at least there's another place that exists

stuck elbow
#

one for the ST7725 and one for ST7735R

idle owl
#

I was changing it at the top. Totally wrong.

#

You had it set to 0, I changed it to 8. And I have red for red. Checking blue.

#

Blue is blue πŸ˜ƒ

#

(_MADCTL, b'\xc8'),

stuck elbow
#

it was 0 before my patch

#

sorry

#

it was 8

idle owl
#

hmm.

stuck elbow
#

so how did you reproduce that bug?

idle owl
#

I was testing it when we were linting the libs. And I was getting the opposite color.

stuck elbow
#

it was 0xc8 then

idle owl
#

I didn't notice because I was excited that it even worked, and then Andon asked whether it was still doing it.

#

I have no idea then.

#

I'm now second guessing myself but I swear it was reproducible...

#

wait

#

I didn't do it using hex

#

I did it using the color565

#

Which is also producing the correct color now.

stuck elbow
#

0xf800 should be red

idle owl
#

It wasn't before. Because I didn't understand 16bit hex until today. So I had to have used the color565 method

#

0xf800 shows red

stuck elbow
#

and 0x001f should be blue

idle owl
#

Correct.

#

It shows blue.

stuck elbow
#

so now it works, I hate when it does that

idle owl
#

ugh yes.

#

PyCharm just did the same thing to me. Not happy.

#

That little stripe on the display is weird. I thought it was a HW issue. But changing the MADCTL in the wrong place made it disappear for a short time.

stuck elbow
#

is that a 128x160 display, or 128x128?

#

and is the stripe of randomly colored pixels?

idle owl
#

128x128. It was randomly colored pixels until it disappeared, now it's the last color that filled it.

stuck elbow
#

I know what it is, but it will be a little hard to fix

idle owl
#

I'm not worried about it unless it's a repro'd thing for other people.

stuck elbow
#

it is

idle owl
#

Hmph.

#

I was going to say that I got this display specifically to test this lib, so it's fine, but if it's something we need to fix, we should probably fix it.

stuck elbow
#

The problem is that the chip in that display is for 160x160 resolution, but also handles smaller displays. However, the way this smaller display is connected, it doesn't start at 0 β€” it's shifted by 2 pixels in one direction and 3 pixels in other.

idle owl
#

oi....

stuck elbow
#

This is solved by offseting all the pixel calls etc.

#

but the MADCTL also rotates this display by 90Β°

#

so now the shifts are wrong

idle owl
#

ohh I see

stuck elbow
#

The problem is, I have a bunch of those display modules, and each one of them has the display shifted differently

idle owl
#

oi.

#

So we'd have to write up libs for each one? Or can we have the user pass in the size of the display and have it work that way?

#

Or some other way

stuck elbow
#

well, we only need it for the ones that Adafruit sells

idle owl
#

right

stuck elbow
#

unfortunately I don't have any of those

idle owl
#

Ah.

#

I see.

stuck elbow
#

because the chinese ones are so much cheaper πŸ˜›

idle owl
#

I have some of the adafruit ones

stuck elbow
#

in any case, that driver needs some love

#

I have learned a lot about those displays while I was working on Β΅Game

#

and I see a lot of unnecessary stuff in that driver

#

which I copied from the Arduino driver 2 years ago when I was writing the MicroPython libs, and then it was copied over for the CircuitPython

#

cargo cult

idle owl
#

oi yeah

languid sage
#

@idle owl saw our comment on 16-bit HEX... it doesn't exst. it represents 4-bits. Hex was formally taught by IBM back in the 1960's when the IBM System 360 (mainframe) was introduced. Prior to that we used octal notation to observe and document memory contents. Octal was using the digits 0-7 to represent the binary patterns 000-111. Hex just shifted to a 4-bit notation using 0-9A-F to represent 0000-1111. So a "normal" 8-bit byte is represented as 2 hex digits. And RBG colors are represented as 6 hex digits. (RRGGBB, where red might be 800000, blue 0000ff, etc.) A great discussion of hex values and colors can be found in the X Windows System User Guide developed at MIT in the 1980's. Your boss lady may very well have a copy.

#

Actually if dealing with 24-bit color systems, color is represented a #RRRGGGBBB.

timber mango
#

The next logical step up would be a base-32 notation. That's a lot of symbols!

light gate
#

Will the audioio api work with the Trinket? Where do I find it or does it com with the Trinket?

raven canopy
#

@light gate unfortunately, audioio currently only works with the SAMD Express boards (Express = additional Flash memory). The Trinket M0 just doesn't have enough storage for the firmware, library, and user code. If you look at this page, you will see which modules work on each of the boards (aka "ports"). This is not to say that future changes to support will happen; just a current state.
http://circuitpython.readthedocs.io/en/latest/shared-bindings/index.html#support-matrix

light gate
#

Thanks I will check the page out... Chuck

raven canopy
#

This line above should have read: This is not to say that future changes to support will not happen; just a current state

light gate
#

Thanks again.

#

@sommersoft and if I had to find the api's to place in the Circuitpython folder where would they be located?

#

@sommersoft I see they are called "Modules"

#

Must be in the latest UF2 file.

manic glacierBOT
tidal kiln
#

the term 'library' and 'module' unfortunately gets used interchangeably sometimes

raven canopy
#

yeah. "Core Modules" is more akin to "Libraries included in the core firmware, and included in the .uf2"...

manic glacierBOT
timber lion
timber lion
idle owl
#

Hah! I got the REPL working in PyCharm!

plain oriole
#

@idle owl no kidding? Got a guide on how?

idle owl
#

I can explain it. There's a MicroPython plugin they wrote for it. It doesn't directly support CircuitPython. Here's how I did it, but I don't know if my workflow is different. Download the plugin - I think I did it through the plugins interface. Plug in your board. Open/create a "project" (directory). It can't be the CIRCUITPY directory, is what I found. Open Preferences > Languages & Frameworks > MicroPython. Click on your directory in the list. Check the box to "Enable MicroPython support", choose ESP8266 as "Device type", and for "Device path" you need to manually enter the path to the serial connection (so on mac, it was /dev/tty.usbmodem####). (It won't autodetect it, I assume because it's not an ESP8266). Initially it asked me to install some dependencies, which I did. If all that works, then under the "Tools" menu, you'll find MicroPython > MicroPython REPL. Click that and it should open the REPL at the bottom of the screen.

#

I ran into a lot of issues initially, but I think it was because I was trying to enable it on the CIRCUITPY directory, and not something else. You'll have to go in and manually change it if you plug in different boards that end up with different paths for the serial connection.

plain oriole
#

awesome. I hadn't seen that plugin. I'll give it a try. Thanks!

idle owl
#

You're welcome!

tidal kiln
#

@idle owl cool. good summary.

idle owl
#

@tidal kiln Thanks. Yeah I read that, but had forgotten about it. Thanks for linking it.

raven canopy
#

why didn't anyone tell me that tonyd already wrote a python trellis library?!? and how did i miss it?? 😜 no matter...its done now.

#

correction: single trellis is done. still have to work on the library for a matrix of multiple trelli.

slender iron
#

<@&356864093652516868> Meeting tomorrow as usual here on Discord. It'll be at 11am Pacific / 2pm Eastern time.

manic glacierBOT
strong violet
#

I noticed a difference between CircuitPython and vanilla MicroPython. Ctrl+D in raw REPL doesn't run main.py in MicroPython but does it in CircuitPython (ver 2.2 on Playground Express).

Is it indended and what's the rationale behind this change?

#

With my current knowledge I like the original design better, as it provides a way to reset the environment for the REPL, without being distracted by the main.py

#

Are there any alternative means for resetting the environment in CircuitPython?

opal elk
#

it should do that afaik...

#

oh wait, I misread

tulip sleet
#

@strong violet Our rationale is explained here: http://circuitpython.readthedocs.io/en/2.x/README.html#behavior. In addition we have the auto-reload mechanism: when main.py (or any file) is rewritten via the CIRCUITPY drive, the VM is restarted and main.py is read again. The idea is to make it easy to edit and change programs without using the REPL or the reset button (random pressing of which can corrupt the CIRCUITPY drive).

#

@strong violet are you specifically distinguishing between the behavior in the raw REPL vs the regular REPL?

manic glacierBOT
slender iron
stuck elbow
#

@slender iron you can't reveal your evil master plan at the beginning like that, you have to wait until you have the heroes all tied up over the shark pool

slender iron
#

@stuck elbow we are the heros

stuck elbow
#

who's the villain then?

slender iron
#

don't need one to be heroic

stuck elbow
#

but it's all so much simpler with one

#

but on a more serious note, great writeup

#

and you got it ready just in time for the hackchat

slender iron
#

true πŸ˜ƒ I'm ok with complex. Thank you! I figured it was good timing

stuck elbow
#

real life has no sense of a good story

slender iron
#

exactly

manic glacierBOT
#
deshipu
[adafruit/circuitpython] Issue opened: #555 ModuleNotFoundError: No module named 'adafruit\_usb\_descriptor'

Running make on a fresh checkout gives me this error:

$ make -j8 BOARD=trinket_m0
Use make V=1, make V=2 or set BUILD_VERBOSE similarly in your environment to increase build verbosity.
install -d build-trinket_m0
python3 tools/gen_usb_descriptor.py \
	--manufacturer "Adafruit Industries LLC"\
	--product "Trinket M0"\
	--vid 0x239A\
	--pid 0x801F\
	build-trinket_m0/autogen_usb_descriptor.c
Traceback (most recent call last):
  File "tools/gen_usb_descriptor.py", line 9, in <modu...
stuck elbow
#

I'm not thinking today

idle owl
#

It happens. I spent an embarrassingly long time yesterday fighting with a library because I had accidentally copied the .py and the .mpy into the /lib folder at some point and I was testing via the .mpy.

tidal kiln
#

nice post @slender iron

timber mango
#

I need a sound check in the voice channel for the meeting. all set!

stuck elbow
#

now I'm getting "mpy-tool.py: error: too few arguments" when trying to use MPY_FROZEN_DIR

tulip sleet
#

@stuck elbow did you build mpy-cross yet? You have to build it manually.

#

We should probably fix that. There was a reason once but I don't think it's a good reason anymore.

stuck elbow
#

I did

tulip sleet
#

try to emulate the MPY_FROZEN_DIRS settings in the CPX boards dir

#

notice DIR vs DIRS

stuck elbow
#

same error

#

interestingly, BOARD=circuitpython_express works

#

ok, this must be something wrong with the other files in that directory, when I copied just the python files to a new directory, it works

slender iron
#

thanks @tidal kiln !

manic glacierBOT
slender iron
#

<@&356864093652516868> meeting starting soon!

errant grail
#

It's an awesome keyboard.

tidal kiln
#

the keyboard is part of the meeting ambiance

errant grail
#

No update. Group hug!

opaque patrol
#

(tappity, tap, tap tap, tappity, tap)

umbral dagger
timber mango
#

To the community for consistently responding positively and not squashing exploratory ideas I've put out in the past week. I'm a hug-as-you-go kind of person, so I'll try to keep in mind there's a time and place to make the extra effort to give a good hug. ;) Receptivity here in this very meeting, last week, during the In The Weeds session, was a wonderful welcome for me! Also for Kattni's awesome reading of technical stuff during the meeting last week.

raven canopy
#

Just a group hug this week.

#

i.e. I get confused a lot. 😁

timber mango
#

client crashed. back.

stuck elbow
errant grail
#

no progress

#

to report

#

Thanks!

#

Woo hoo!

#

(couldn't touch CPy much this past week -- making backing tracks for the band's final song for the CD. Herding felines.)

timber mango
#

I mainly use Circuit Python in conjunction with helping newcomers with their projects. They don't always ask in #circuitpython-dev, either. ;)

TX/RX UART pair used to connect two microcontroller projects together, but concerned with the fact both projects are connected via USB to separate laptops. When I unplugged the Trinket M0 from the USB jack, it blinked the 'are you crazy' blink pattern, which I take to be an undervoltage condition (0.9 volts under Vcc from what I measured).

Also working on an R2-R ladder net to be able to read an 8-bit binary input on a single ADC pin. Front panel construction going on with that this week, since all resistors in the experimental version are 100k potentiometers!

errant grail
#

Except you're powering the MCU directly through the GPIO. It would backcharge the regulator through the MPU. The internal protection diode probably has a lower forward drop voltage than the external diode.

raven canopy
#

Trellis base library complete. Starting Trellis Matrix tonight. After that, might start hitting nRF52 shared modules...not sure. (Or docs? 🀷)

timber mango
#

(woot)

# 
 $ du -ka
slender iron
timber mango
stuck elbow
#

rename them to .cpy

slender iron
opaque patrol
stuck elbow
tidal kiln
idle owl
timber mango
idle owl
slender iron
idle owl
#

@timber mango Looking now.

errant grail
#

Thanks everyone! Amazing community here.

timber mango
#

Thank you!

raven canopy
#

Later guys!

errant grail
#

It was okay. I like it, actually.

#

Ambience.

tidal kiln
timber mango
#

http://www.avrfreaks.net/comment/900895#comment-900895
This comment seems definitive. I'm powering the Trinket M0 through TX/RX of the remaining powered microcontroller, when I unplug the first one (Trinket M0) from USB/REPL. This has to be addressed.

My schematic showed Fritzing objects for other microcontrollers. The wired and tested version was between CPX and Trinket M0. One or the other was frequently unplugged from USB (out of convenience; only one laptop had a development environment capable of generating a new .UF2 upload for testing -- and both microcontroller's code needed improvement during this experimental phase, programming the UARTs to talk to each other via TX/RX pairs).

errant grail
#

Thanks!

idle owl
#

@timber mango Does this still need to be tested?

manic glacierBOT
stuck elbow
#

now, the gamepad library seems to make it crash really bad

#

The command "([[ -z "$TRAVIS_BOARD" ]] || (wget https://s3.amazonaws.com/adafruit-circuit-python/gcc-arm-embedded_7-2017q4-1~trusty3_amd64.deb && sudo dpkg -i gcc-arm-embedded*_amd64.deb))" failed and exited with 1 during .

#

hmm, travis seems to be unwell

manic glacierBOT
tulip sleet
#

I can just restart it. Hold on.

#

there is a "Restart Build" button for me on the right side. Not sure if you can see that or not based on privs.

stuck elbow
#

thanks, I don't have that button

manic glacierBOT
timber mango
#

@idle owl i can test it, just need a stypistic review

#

stylistic

idle owl
#

ok keen. I think that was actually the first sensor I ever bought. So it's somewhere here πŸ˜ƒ

manic glacierBOT
idle owl
#

@timber lion Would it make sense to start calling them sensorname_test.py instead of simpletest.py to make it easier to differentiate if you have a lot of example code downloaded?

#

or sensorname_simpletest.py

manic glacierBOT
idle owl
#

@timber mango working on reviewing it, realising git's not making it easy to review the most recent updates to it.

timber mango
#

you can view it on his github fork btw

idle owl
#

oh. that might have been a smarter way to do it. I'm halfway through it now. πŸ˜„

timber mango
#

f ya want to hook it up and try plz do

#

ill get to it later too

idle owl
#

I'll look for it in a bit and give it a try. I have some suggested changes that'll need to be tested anyway

digital slate
#

hi all, quick question about modules. Is there a way to tell from the REPL which packages are available? Or do I just need to try importing?

stuck elbow
#

help('modules') worked on MicroPython

#

yup, it works

digital slate
#

oh nice

stuck elbow
#

you can also call help on any object you would like to see information about

digital slate
#

was trying to do ubinascii and doesn't seem like it's included, but very much could be PEBKAC

#

I'm very much enjoying CircuitPython though

stuck elbow
#

I don't think there is ubinascii included

digital slate
#

that was the conclusion I was coming to as well

stuck elbow
#

do you need md5? base64?

#

ah, no, sorry, that uses ubinascii under the hood

digital slate
#

right, so that kind of gets to my question: it's not possible to just drop a ubinascii.py file into my lib folder? That was what I was looking for before I came here

stuck elbow
#

it will fail trying to import ubinascii

opaque patrol
#

what are you wanting to convert to or from binary?

digital slate
#

oh right, I had written ubinascii.py above. Is ubinascii somewhere in one of the compiled libraries?

#

want to go ascii -> hex

stuck elbow
# 
print("".join(hex(ord(c)) for c in your_string))
digital slate
#

oh so I'm just chasing a library solution for something that doesn't need one?

stuck elbow
#

well, it's nice to have a library, but when you don't, you have to improvise

digital slate
#

right right, I had assumed that was the main way to convert to hex, which was silly

#

ok, cool, thanks for the pointer, I'm cool with improvising!

stuck elbow
#

hmm, actually that gives you the numbers with 0x

# 
print(''.join('{:02x}'.format(ord(c)) for c in your_string))
#

this should work better

idle owl
#

@solar whale I'll check it out again once you push the commit.

solar whale
#

@idle owl thanks. It may be later tonight or tomorrow before I can work on it.

idle owl
#

@solar whale no worries!

digital slate
#

@stuck elbow worked like a charm in the end, thank you

timber mango
#

@slender iron heya im investigating the itsybitsy i think i did something wrong in my PR

#

so the release binary doesnt work :/

slender iron
#

got a link to the PR?

#

hi @digital slate !

timber mango
slender iron
#

@timber mango I think there is a mistake in the W25Q80DV.h file

#

what did you have in mind?

timber mango
#

i dont know, i was going to start debugging it

#

but im not sure how to get my fork in the right state

#

because i did a PR from a branch to 2.x

slender iron
#

starting a new branch is probably best

timber mango
#

k my 2.x is also out of sync

slender iron
#

@timber mango what does git remote -v show for you?

timber mango
slender iron
#

ok, so do git fetch upstream and then git checkout upstream 2.x

timber mango
#

from my 2.x?

slender iron
#

this will get you to "detached head" on upstreams 2.x

#

in whatever directory you want to work on the fix in

timber mango
#

k one sec

#

dya mean "git checkout upstream/2.x"

#

/quote $ git checkout upstream 2.x
error: pathspec 'upstream' did not match any file(s) known to git.
error: pathspec '2.x' did not match any file(s) known to git.

slender iron
#

yeah

#

then to create a new branch from it you'll do git checkout -b fix_itsybitsy_flash or whatever you want the new branch to be called

timber mango
#

back i had to grab some more teeea

#

will do!

slender iron
#

that should be based on the latest 2.x

digital slate
#

hi @slender iron ! Glad i thought to come here for help, this is a great resource

slender iron
#

I'm glad it worked well!

digital slate
#

Alas, I'm discussing the normal python tonight with Mr Kridner and Mr Nelson from the Beagley team

#

but CircuitPython pulled me into this world and for that I am grateful πŸ˜ƒ

slender iron
#

exciting! I haven't heard of Beagley

#

I'm glad it has! python makes it easy to get going

tidal kiln
#

Beagley = Beagle Boards?

digital slate
#

haha, yes, sorry

slender iron
#

ah! that makes more sense

digital slate
#

anyhoo, I'll go hang in the general chat and not muck up the works here, looks like good progress being made

idle owl
#

ooh. Those boards are manufactured about 20 minutes from here.

slender iron
#

@digital slate we're not strict about it. we talk all thing circuitpython and python here

digital slate
#

cool cool

#

oh wow, watching the weekly chat thing, didn't know that's a thing.

idle owl
#

Yeah! Everyone's welcome to join in

slender iron
#

@digital slate I'm about to post this week's as well

digital slate
#

neat, will keep an eye out

#

mentioned CircuitPython (and my use of it) last week on the show

slender iron
#

awesome! I'm only a third or so of the way through it

idle owl
#

That's great!

slender iron
#

I remember you mentioning that you've been using it

digital slate
#

it's been great for doing serial interface stuff to uBlox modems

#

AT commands oy

slender iron
#

perfect!

#

yeah πŸ˜ƒ

#

python is great with strings

digital slate
#

yeah, very much so

slender iron
#

@digital slate you nailed it on amp hour, plug it in, edit, save and it auto-reloads

idle owl
#

@slender iron Thanks!

slender iron
#

np πŸ˜ƒ

idle owl
#

oi

raven canopy
#

begs adabot please help us! πŸ˜„

manic glacierBOT
raven canopy
#

otherwise, that's going to be a PR or two...

manic glacierBOT
slender iron
#

<@&356864093652516868> We have a HackChat on Friday too! I forgot to mention it in the meeting. Details are here: https://blog.adafruit.com/2018/01/29/circuitpython-hack-chat-this-friday-february-2-2018-at-1200-pm-pst-3pm-est-hackadayio-hackaday-adafruit-circuitpython/

Adafruit Industries - Makers, hackers, artists, designers and engineers!
CircuitPython Hack Chat this Friday, February 2, 2018, at 12:00 pm PST / 3pm EST @hackadayio @hackaday @adafruit #circuitpython

Join us on Hackaday.io this Friday at noon Pacific / 3pm Eastern to discuss all things CircuitPython! Need inspiration for questions? Check out our CircuitPython in 2018 blog post, this week’…

cunning crypt
#

Should I bring an axe?

#

Or wrong type of hacking?

slender iron
#

I hope no one brings an axe to grind

cunning crypt
#

We'll have to stay sharp.

slender iron
#

lol, yup

manic glacierBOT
idle owl
#

Wait maybe that's not the one I'm thinking.

#

Unless I'm missing something.

opaque patrol
idle owl
#

I thought it wasn't in there. I think it's a new display controller.

opaque patrol
#

I thought it was the ili9341, but I am looking at the page now

idle owl
#

I think it's updated from that one.

opaque patrol
#

I think it is HX8357

#

That repository has hx8353, might work

idle owl
#

Hmm ok. I should look into that.

#

@opaque patrol Thanks πŸ˜ƒ

cunning crypt
idle owl
#

Ah that's what I was missing, thank you. Yeah it might work with the earlier driver.

cunning crypt
#

Also, @idle owl and @opaque patrol - You may have, literally, made me money. Last year I made a three thousand dollar mistake in not double-verifying that the screens I was having put on my boards worked 100% like I thought they did.

#

They were HX8357D screens. At that point in time, there was no HX8357D driver that would even compile on an ESP8266 for Arduino.

#

Now there is.

opaque patrol
#

Are you using CP or Arduino?

cunning crypt
#

Granted, those devices have a bunch of issues completely unrelated to the screen, but! The screen was the device, effectively

#

Arduino

idle owl
#

It doesn't work with the previous driver.

#

At least the 3.5" doesn't.

#

So my original statement stands. πŸ˜ƒ

cunning crypt
#

Doesn't work with the CP driver? Bummer.

manic glacierBOT
#
dhalbert
[adafruit/circuitpython] Pull request opened: #560 Correct computation of SPI baud rate register value, and allow for the value to be 0\.

Fixes #464. Corrects baud rate computation to match formula. Allow rate to be 0, which allows maximum rate. On both M0 and M4, with SPI SERCOM clocked at 48 MHz, I can get 24Mhz SPI clock pulses now, as verified by my Saleae.

Previous error checking used to error out above a maximum SPI frequency. That was not intentional, but was due to checking for the baud register value being 0. That is no longer the case: 0 is a legitimate value. The frequency can be arbitrarily high, and you'll just ...

raven canopy
#

shouldn't be too hard to add....looks like it's just setting some params. he says without looking at the datasheets πŸ˜„

idle owl
#

Heh. It probably shouldn't be on the CP compatible list of FeatherWings is my point. Not yet anyway.

raven canopy
#

two options: 1) remove it from the CP store. 2) all-nighter the driver before anyone orders tomorrow.

idle owl
#

@slender iron FeatherWing lib issue created.

raven canopy
#

does adabot talk to the storefront at all?

idle owl
#

No

#

We haven't gotten that complex yet πŸ˜„

raven canopy
#

didn't think it did. i went for the long shot.

idle owl
#

Yeah the store's updated manually, as far as I know.

raven canopy
#

hey, people need jobs! i imagine we all wrestle with "how far do i/we automate this" quite a bit.

idle owl
#

You automate it and find something else awesome for that person's time. That's the ideal situation anyway. Turns out with a growing business, that's not so difficult. There's always more to be done.

opaque patrol
#

You become an expert on configuring and fixing the automation. Someone has to maintain the bots

raven canopy
#

that is a very Toyota Production System answer! which means i dig it. (I'm a fan of Taishi Ohno & Masaki Imai)

cunning crypt
#

So, you build something to automate it. Then spend your time building a better something to automate it.

raven canopy
#

great. now i'm fighting feature creep and a desire to ramble on about productivity (which is oddly oxymoronic)

cunning crypt
#

Then build something to automate the automating

raven canopy
#

just realized that i used me throughout these for..loops. my visual basic is showing... 😝

timber mango
#

ITS GOING TO BE OKAY. ;)

strong violet
#

@tulip sleet Yes, I was referring to (expected) different behaviour in the raw REPL compared to regular REPL. In MicroPython Ctrl+D behaves differently in the raw mode (skips running user code), but CP runs user code in both modes.

manic glacierBOT
#
arturo182
[adafruit/circuitpython] Issue opened: #561 nRF52840 port

What's the status of the nRF52840 port, is anyone working on it?

I followed the structure of the feather52 code and added the s140 6.0.0 softdevice to the download script and makefiles so it's used when building the nrf52840, but there is the case of adding support for it in the bluetooth driver.

If no one is currently working on adding s140 support in the bluetooth driver, I'd like to look into it. I have a lot of professional experience with the nRF52 series, so I believe it shouldn't...

manic glacierBOT
manic glacierBOT
timber lion
#

oh interesting @idle owl regarding simple test names.. yeah i'm fine either way. i don't think it's super common to put all the examples in one spot for most users, but it can't hurt to put the library name in front of it either

#

er hurt

manic glacierBOT
#
ladyada
[adafruit/circuitpython] New comment on pull request #560: Correct computation of SPI baud rate register value, and allow for the value to be 0\.

please note, 24 mhz is outside the spec for the SERCOM max clock speed
so you can do it but its 'unofficial overclocking' :)

https://github.com/arduino/ArduinoCore-samd/issues/147
http://community.atmel.com/forum/samd21-sd-card-spi-max-speed
http://atmel.force.com/support/articles/en_US/FAQ/SPI-max-clock-frequency-in-SAMD-SAMR-devices (which doesnt exist anymore, thanks Microchip!)

opal elk
#

silly question: what's the proper way to use a venv when doing CP development?

#

I had it done and then went and moved so I lost my tmux session :p

slender iron
#

do you need to source it again?

#

something like source venv/bin/activate

opal elk
#

do I put venv in, say, /Adafruit_CircuitPython_LIS3DH ?

stuck elbow
#

or . as a shortcut for source

opal elk
#

I'm experienced with python scripts, but very inexperienced with all this python project hullabaloo

stuck elbow
#

you can put it anywhere, I've seen people who like to have a central directory with all their virtual environments, or even use a program to manage them

#

personally I like to put them as a subdirectory in whatever they are for

opal elk
#

got it

#

and I see .env in the .gitignore so I'll use that

slender iron
#

thats what I use when its a venv for a particular location

#

I also have a top level venv I use sometimes

opal elk
#

oh. I... already had that dir

tulip sleet
slender iron
#

looking now

tulip sleet
#

i made one unrelated change to make esp8266 work with new heap stuff

#

just added the long-lived boolean to one call

slender iron
#

ah thank you

tulip sleet
#

esp8266 is the stepchild

stuck elbow
#

it's not going to get better with more ports

idle owl
#

ok sanity check: I thought pulseio was included in gemma and trinket now?

tulip sleet
#

no - we just forget to test

stuck elbow
#

@idle owl I thought so too

slender iron
#

part of getting ports more reliable is having travis build them

tulip sleet
#

@idle owl yes it is as of 2.1.0

#

@idle owl I think some guides may be out of date

idle owl
#

yah we're having some issues with it, so I thought maybe it was me remembering wrong

#

it's not

#

reflash solved it.

manic glacierBOT
opal elk
#

adafruit/Adafruit_CircuitPython_LIS3DH#12 has the code change done but I'd like to test it first. hopefully will be able to hook a CPX up to it tonight.

manic glacierBOT
manic glacierBOT
timber mango
#

@slender iron heya GC Q on 2.2.1 maybe relevant to your interests

#

i thought the gc auto-collects when memory is low

#

yet this works when removing the gc calls does not

#

'''import time
from digitalio import DigitalInOut, Direction, Pull
from analogio import AnalogIn
import audioio
import touchio
import pulseio
import neopixel
import adafruit_dotstar
from adafruit_motor import servo
import gc
gc.collect()

keyboard support

import adafruit_hid.keyboard
from adafruit_hid.keycode import Keycode'''

idle owl
#

@timber mango it's three backticks to do the codeblock formatting.

tulip sleet
#

@meager fog do you get an out of memory or some other error?

#

try importing the larger modules first. This is kind of exactly what the new heap stuff is supposed to fix.

slender iron
#

@timber mango it does auto-collect but that doesn't save you from fragmentation. You calling it explicitly will change the fragmentation pattern going forwards

idle owl
#

Good to know.

timber mango
#

oki, well, it works now πŸ˜ƒ

#

i wonder, would it ever make sense to auto-collect after an import

#

since that's a very memory-intensive situtation but happens early only

#

ill also try to rearrange the imports. i was going for pythonic but ironically i think that means smallest first πŸ˜„

idle owl
#

is that what determines it? I wondered because I was doing alphabetically but pylint gets mad about things sometimes and I wondered why.

manic glacierBOT
#
deanm1278
[adafruit/circuitpython] Pull request opened: #564 DM: added write\_readinto to bitbangio

add write_readinto support to bitbangio https://github.com/adafruit/circuitpython/issues/472

note that in the current master branch bitbangio module is not compiled in by default and will have to be added into the makefile

code sample:

import bitbangio
import board

spi = bitbangio.SPI(board.D10, board.D6, board.D9)

while not spi.try_lock():
    pass

a = bytearray(2)
spi.write_readinto(bytes([9, 88]), a)

#if mosi and miso ...
tulip sleet
#

@meager fog when you import a builtin module it doesn't use up much RAM except to add some names to dictionaries. When you import a .mpy it will do that and put a block of bytecode in RAM. And when you import a .py it has to parse it and then save all the stuff above. You could run out of RAM while parsing or run out of RAM for the bytecodes (or static data). If you import the large .py files first they'll have more headroom and free RAM to do the parsing. If the whole thing is just too big to fit then the order doesn't matter.

idle owl
#

@tulip sleet Thanks for clarifying that. Super helpful

manic glacierBOT
raven canopy
#

oh man...the triple x got me again. sorry @digital shore

manic glacierBOT
raven canopy
#

@idle owl you undoubtedly have more pylint experience than me. however, it seems to want system (CPython or built-ins; not sure) modules before user modules. the only other thing that has really tripped me up is from not-triple-x import *...does not like that.

#

but, i'll defer to more expertly discussion.

idle owl
#

It's not good to do that anyway

#

It uses more memory than simply import not-triple-x

raven canopy
#

true. in CPython, you rarely worry about the memory, so definitely a good flag for :blinka:

#

oh..discord wants a reset, since adafruit emoticons are not working.

idle owl
#

Apparently worked for me typed out. Silly Discord for you.

manic glacierBOT
raven canopy
#

yeah, it's been doing that lately. last update. blinka

#

it might have something to do with sleep vs shutdown. but, its inconsequintial.

idle owl
#

Anyway, yeah, try to avoid from lib import *. Doing from lib import something-specific is fine.

#

@slender iron Tony is fine with doing name_simpletest.py. I think since it won't matter to linting and Adabot, we should consider going that route.

slender iron
#

works for me @idle owl

idle owl
#

I'd like input is any else has thought on it. We're talking about the basic example that will be included in each library in the bundle. At the moment, naming is inconsistent, except where named by the same person - i.e. TonyD names all of his simpletest.py, so his repos are consistent with each other. My suggestion is to call it sensorname_simpletest.py in the event that someone has more than one of the demos downloaded at the same time.

slender iron
#

I think sensorname_simpletest.py makes sense

#

in fact, I can update cookiecutter for it

idle owl
#

excellent

raven canopy
#

ya got my vote. speaking of cookiecutter, i need to investigate why it won't make create the .py file when I run it. it's either another "Windows says no" or "sommersoft did it wrong"... πŸ˜„

slender iron
#

Β―_(ツ)_/Β―

manic glacierBOT
idle owl
#

@solar whale are you around?

manic glacierBOT
#
tannewt
[adafruit/circuitpython] Issue opened: #566 Improve our reference docs

ReadTheDocs is awesome for hosting reference docs based on GitHub code. However, we've been bad about ensuring its set up and formatted consistently. Ideally, they would all be like this.

We should do a pass over all of the drivers to ensure that they do these things:

  • Have a docs folder with the conf.py moved there. (change sys.path at top of conf.py from '.' to '..') (Adabot verified.)
  • Use an docs/index.rst fi...
solar whale
#

@idle owl sorry - I was tied up - I'll make the changes you and @slender iron requested.

idle owl
#

@solar whale No worries! I was going to just tell you instead of doing another review if you were around, that was why I asked.

solar whale
#

I never knew spaces were such a valuable comodity πŸ˜‰

idle owl
#

it's all about spaces in Python

#

@solar whale I'm excited, this is the first sensor I ever got. And was never able to use it because I wanted to use CircuitPython.

solar whale
#

@idle owl I've been wanting to use this as well. It was a very good learning experience getting it working.

#

@idle owl @slender iron Travis unhappy 😦 Not clear to me why.

idle owl
#

Yah I was just looking at that

slender iron
#

I'll look too

idle owl
#

looking for rakefile

#

it seems like.

solar whale
#

I did 2 quick commits - was that a problem?

idle owl
#

No, I don't think so. I think there's an issue somewhere.

slender iron
#

you need to add a .travis.yml

idle owl
#

Oh at the top it says couldn't find travis.yml file

solar whale
#

I don't have a .travis.yml = where do I get it?

slender iron
#

did you run cookiecutter?

solar whale
#

yes

slender iron
#

its a . file so it might be hidden

#

what os are you on?

solar whale
#

linux - ls -la does not show it.

slender iron
#

hrm, thats weird

#

it should have been added when the code of conduct was

solar whale
#

ah - found it~

idle owl
#

nice!

slender iron
#

I think you are missing .pylintrc too

solar whale
#

i copied th files t a new subdir and it did not get copied . I'll move it now and recommit. alomg with .pylintrc

#

do I need .gitignore as well?

idle owl
#

no I think that's local only

slender iron
#

yup

idle owl
#

oh

#

I'm wrong

slender iron
#

now you know πŸ˜ƒ

idle owl
#

indeed!

slender iron
solar whale
#

ok recommitted

slender iron
#

k, travis is trying again

solar whale
#

I wondered wher the .travis.yml was supposed to come from - sorry for the confusion.

#

I ran cookie cutter but then cloned my fork of the temporaty repo

slender iron
#

np

#

looks like lint is being nitpicky as expected

idle owl
#

and there's pylint doing it's thing. πŸ˜ƒ

solar whale
#

yup

idle owl
#

you have it sorted how to read that?

solar whale
#

I think so - just deleted the trailing lines - will try again.

idle owl
#

There were issues in 2 files.

slender iron
#

you can always fix some and push again. I do it when I'm lazy and don't want to set it up locally

idle owl
#

πŸ˜ƒ

#

@slender iron Do you want to merge it or do you want me to once it passes?

solar whale
#

oh - bad whitespace !!

idle owl
#

All about spaces πŸ˜‰

slender iron
#

you can merge it

idle owl
#

ok keen. I tested it already.

slender iron
#

I'm gonna disappear to dinner with a friend sometime soon hopefully

idle owl
#

excellent!

#

You want to approve? Or I can merge it with your changes outstanding I think.

#

Wait I might not have access to merge, now that I'm looking at it

#

I'm not seeing the button, and usually it's there even if travis hasn't finished

solar whale
#

no rush - have a good dinner - hopefully I make travis happy by the time you are done πŸ˜‰

slender iron
#

I added a couple more comments

#

adds librarians as owner

idle owl
#

thanks πŸ˜ƒ

slender iron
#

I did a poor job making the repo

#

its added now

idle owl
#

yep!

#

thanks

solar whale
#

still some cleanup to do...

slender iron
#

no worries, you'll get used to pylint's nit picks as you do more πŸ˜ƒ

idle owl
#

yep. gets all of us.

solar whale
#

trying again...

#

I should install pylint locally...

idle owl
#

that's what I did. I have it in a venv

#

passed!

solar whale
#

yay!

idle owl
#

Did you change it from "return the sensor status" to "The sensor status"?

#

I can't find that change, but I'm not sure I'm seeing the most recent commit

solar whale
#

ooh - good catch - sorry - I will do that now!

idle owl
#

no worries!

solar whale
#

I hope it is ok to misspell a word in the commit comment ...

idle owl
#

yah it's fine πŸ˜ƒ

manic glacierBOT
idle owl
#

@solar whale great job! I'm doing the release now

solar whale
#

@idle owl Woohoo! Thanks!

raven canopy
#

congrats on getting through linting @solar whale! its almost as exciting as a roller coaster. πŸ˜„

solar whale
#

@raven canopy Thanks! I feel like I have been through an initiation rite!

raven canopy
#

...scored a -.91/10 was a painful drop for me. haha

idle owl
solar whale
#

@idle owl thanks!

#

Time for bed here - good night!

idle owl
#

same!

manic glacierBOT
manic glacierBOT
manic glacierBOT
manic glacierBOT
#
joseangeljimenez
[adafruit/circuitpython] New comment on pull request #560: Correct computation of SPI baud rate register value, and allow for the value to be 0\.

Additional clarification:

  • 24 MHz can work absolutely fine (at least inside the MCU) and should not be considered overclocking. The SAMD21 datasheet specifies a typical SPI SCK period (tSCK) of 42 ns, which translates into a typical SPI clock of 23.8 MHz. Hence, a 24 MHz clock is within a 1% tolerance with respect to the typical value given in the datasheet.

  • Despite the previous, in my pull request https://github.com/arduino/ArduinoCore-samd/pull/292, *I conservatively kept 12 MHz as...

tidal kiln
#

oof. is that a negative lint score? didn't know it did that.

idle owl
#

Yeah....

manic glacierBOT
stuck elbow
#

The Β΅Game devices arrived!

#

I already have one order!

manic glacierBOT
idle owl
#

@slender iron we don't have itertools do we?

slender iron
#

I'm not sure what it is

idle owl
#

module that has stuff in it that helps with iteration

#

REPL doesn't think it's built in. So I assumed not, but thought I would ask

slender iron
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yeah, I don't think its there

timber lion
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ah no unfortunately it's not in micropython

idle owl
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ok thanks

timber lion
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i think there was a port someone was working on

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but might not be worth pulling it in as a dependency, could just copy out the functions and use them (with a mention back to it)

idle owl
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I can see that.

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@timber lion thank you πŸ˜ƒ

manic glacierBOT
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joseangeljimenez
[adafruit/circuitpython] New comment on pull request #560: Correct computation of SPI baud rate register value, and allow for the value to be 0\.

@ladyada I am really sorry for the confusion! I checked this using my old locally stored datasheet rev 42181D (dated 09/2014), where it states tSCK (typ.) = 42 ns. You are absolutely right that the newest datasheet shows 84 ns.

I have been working with the SAMD21 for several years now and designed several boards using SPI clocks up to 24 MHz, with a proper layout (5-6 mils narrow, short tracks PCB). I guess that Atmel revised (conservatively) the typical value of tSCK.

![image](https://...

opal elk
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itertools is magic, but possibly overkill for circuitpython

stuck elbow
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I always felt like most of itertools should actually be a part of Python, and not done as function calls