#circuitpython-dev

1 messages ยท Page 174 of 1

stuck elbow
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it's Adafruit CircuitPython 3.0.0-alpha.6, were there any changes since?

slender iron
#

the "all timers in use" error means for the specific pin

tulip sleet
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so catch the error and keep trying the rest of the pins

stuck elbow
#

catching the error, I got up to 9 pins

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

Interesting. I'm not sure if there's an equivalent for the '66 port, but there's possibly less need for it since communications are UART based ...
I was wondering about the pulse buffer overflow condition: perhaps it'd make more sense to pause if the ring buffer overflows and resume when you pop the ring buffer. At the moment it over-writes the earliest pulses, but quite often you're interested in the start of a packet ... and it'd also solve the swamping problem.

tulip sleet
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@stuck elbow so that's more like what you'd expect, i hope

stuck elbow
#

yeah, but I had that crazy hope of having 12 :)

tulip sleet
#

maybe we should change the error msg: "All timers for pin in use"

stuck elbow
#

I think the error is fine

slender iron
#

@stuck elbow You should be able to use any pin with TCC or TC[1]s

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if you can't then its a bug

stuck elbow
#

hey, got up to 12 by also using the analog pins

# 
[(board.D1, <PWMOut>), (board.D5, <PWMOut>), (board.D9, <PWMOut>), (board.D11, <PWMOut>), (board.D12, <PWMOut>), (board.D13, <PWMOut>), (board.SDA, <PWMOut>), (board.SCL, <PWMOut>), (board.D0, <PWMOut>), (board.A2, <PWMOut>), (board.A3, <PWMOut>), (board.A4, <PWMOut>)]
#

looks like I can't use pwm on D5 and D6 at the same time

tulip sleet
#

ok, there you go. "Analog" is partly a fiction

stuck elbow
#

or D10 and D11

tulip sleet
#

arduino history. I'd like P1, P2, etc. but ...

stuck elbow
#

well, on Arduino you can also use the analog pins as digital

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except A6 and A7 on the pro mini

tulip sleet
#

yah, just means "analog capable"

stuck elbow
#

so no surprise there

#

ok, so with 12 pwms I can ditch the PCA9685

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this is going to be great

idle owl
#

Would you call the pins on a rotary encoder ground and signal?

tulip sleet
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@idle owl, they are A and B, and there's a common ground

idle owl
#

ok thank you

tulip sleet
#

and not to be confused with the push switch which is completely separate

idle owl
#

Right. Would you call that a ground pin and a signal pin?

tulip sleet
#

no cause it doesn't matter which end is which. I'll look up if they have names

idle owl
#

oh.

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Ohhhh. right.

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right.

tulip sleet
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it's just like a tactile switch or whatever

idle owl
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It closes a circuit. They're not specific.

tulip sleet
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right

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the pins are ACB, C is "common", I assume

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for the encoder

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tiny letters on the second page drawings

idle owl
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oh ok yah.

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I looked at that earlier and felt like I got nothing out of it. This is helpful.

raven canopy
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finalizing a cart is such hard work... ๐Ÿ˜„

wraith tiger
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@raven canopy Buy all the things!

raven canopy
#

haha. "Sold! To the sommersoft down front!" ๐Ÿ˜„

manic glacierBOT
manic glacierBOT
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dhalbert
[adafruit/circuitpython] Pull request opened: #916 Check for PDMIn DMA getting stuck\.

The DMA transfer in PDMIn occasionally seems to lose a trigger from the I2S peripheral, and stops transferring. PDMIn record would hang waiting for DMA to finish. This puts a counter "timeout" on the number of times we check for DMA not being done. If the counter is exceeded, we give up and try again.

It would be nice to know why the trigger is being lost, but this prevents a hang, which is a lot better than nothing.

Sorta fixes #879.

tulip sleet
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@slender iron btw re #916, I did try some delays inside the event-checking loop, and that didn't help. The PR just gives up after a bunch of tries, which seems to work fine.

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travis is doing really badly today. I've had to restart one or more subjobs in every adafruit/circuitpython build that happened today, sometimes more than once.

manic glacierBOT
tulip sleet
manic glacierBOT
stuck elbow
manic glacierBOT
solar whale
#

@tulip sleet FYI I built the current master this moring and the run of tools/build_adafruit_bins failed for the esp8266 ake[1]: Leaving directory '/home/jerryneedell/projects/adafruit_github/circuitpython_master/lib/axtls' cp ../../lib/axtls/_stage/libaxtls.a build/libaxtls.a QSTR updated GEN build/genhdr/qstrdefs.generated.h text data bss dec hex filename 601270 1100 64472 666842 a2cda build/firmware.elf Create build/firmware-combined.bin esptool.py v1.2 ('flash ', 35376) ('padding ', 1488) ('irom0text', 567042) ('total ', 603906) ('md5 ', 'c4bdf8c7f1be8fd5b208f55e7e1d8c63') make: Leaving directory '/home/jerryneedell/projects/adafruit_github/circuitpython_master/ports/esp8266' fatal: no tag exactly matches 'c01ce175bb63aab3f44a3efb31bcfd57a58b22bd' but if I then manaully go to to ports/esp8266 and do a make clean make it builds fine. I did run ```git pull
git submodule update --init --recursive
git submodule foreach --recursive 'git fetch --tags'

manic glacierBOT
manic glacierBOT
marble hornet
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@stuck elbow thanks for the info on the inductor (i have no experience with Ls and am glad to leave it off)

manic glacierBOT
tulip sleet
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@solar whale I reproduced the build problem, but I see that the issue is that though tools/build_adafruit_bins.sh, it does not do a make clean (which you did by hand) which I think cleans up the lib/axtls build. I have to go out but will check further later.

solar whale
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@tulip sleet thanks - no rush -- I just wanted to make sure your saw it.

umbral dagger
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Is anyone else having problems with the drive outputs on the CPX Crikit using CP? I have a known good led/resistor so that's not the problem. I'm using the info in the Crikit guide.

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latest CPX/Crikit CP 3 build and latest seesaw firmware.

marble hornet
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@umbral dagger what are the symptoms ?

umbral dagger
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No response from the drive output. Anode to 5v, cathode to the drive outout.

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I'm using the example from the guide

solar whale
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@umbral dagger just tried the guide demo with a 5V solenoid on Drive 1 - worked fine.

manic glacierBOT
umbral dagger
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@solar whale Hmmmm

manic glacierBOT
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jerryneedell
[adafruit/circuitpython] New comment on issue #912: Getting files onto NRF52

here is a demo:

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

Adafruit CircuitPython 3.0.0-beta.0-75-gc01ce17 on 2018-06-08; Bluefruit nRF52 Feather with NRF52832
>>>
>>> with open("main.py","w") as f:
...     f.write("import blinky")
...
...
...
13
>>>
soft reboot

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
main.py output:

LED is blinking

umbral dagger
#

@solar whale You mean this ```from busio import I2C
from adafruit_seesaw.seesaw import Seesaw
from adafruit_seesaw.pwmout import PWMOut
import board
import time

print("1 Drive demo!")

Create seesaw object

i2c = I2C(board.SCL, board.SDA)
seesaw = Seesaw(i2c)

Create drive (PWM) object

my_drive = PWMOut(seesaw, 13) # Drive 1 is on s.s. pin 13
my_drive.frequency = 1000 # Our default frequency is 1KHz

while True:
print("Off")
my_drive.duty_cycle = 0 # off
time.sleep(0.5)
print("On")
my_drive.duty_cycle = 65535 # on
time.sleep(0.5)
# and repeat!

solar whale
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Yes.

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Ranโ€as isโ€

umbral dagger
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same

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CP/seesaw firmware versions?

solar whale
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I did update from delivery version. CP was built in last few days. Cant check versions now. Be back home in a few hours.

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Updated seesaw to GitHub repo.

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I think seesaw is v1..1.2 latest release

umbral dagger
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ok. I grabbed the latest CPX/Criket build and the latest seesaw from github.

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the signal part works fine

solar whale
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Is drive working now?

umbral dagger
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no'

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Having trouble with servo as well... signal I/O works fine

solar whale
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Is drive working now?

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Iโ€™ll be offline for awhile. Good luck!

umbral dagger
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thanks

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when using servo I get one burst on the seesaw activity led when the code starts up. then nothing

marble hornet
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could it be a problem with the unit ?

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solder joints okay ? all that jazz?

manic glacierBOT
prime flower
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@umbral dagger are you using a 5V wall adapter for the cricket as well as the usb for the cpx?

solar whale
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@umbral dagger I ran 4 servos a few days ago. No problems. I have 5V 2a plugged intoCrickit.

umbral dagger
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@prime flower yes

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@marble hornet I de/re soldered the drive connector. No change.

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I think it's software, no activity light using drive/servo, but I do have activity light using signal.

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I'll poke at it more later... into something else now.

manic glacierBOT
solar whale
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@stuck elbow does it make sense to you why I can write to feather52 via USB REPL, but not via BLE REPL

stuck elbow
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I think the ble repl has to be specially enabled

solar whale
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I get REPL prompts via BLE but the write just gives OSError

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It does have to be enabled - and if enabled, there is no USB REPL

stuck elbow
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I never tried the nrf52 myself, so I really can't say much

solar whale
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OK - thanks - I'll look at the code to see if the FS is handled differently.

half sedge
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Dear CP expert, I am looking for a way to emulate a USB HID keyboard from a full fledge Raspberry Pi (not a Pi Zero). So I was wondering if I could use one of my Trinket/Gemma M0 or Circuit Playground Express that can do that kind of thing, and communicate from the Pi. A program would run and wait for order (keystroke) to send. My question are on the electrical level (because the Pi is powered, and the M0 is plugged in the USB host, and maybe one is 3V while the other is 5V) and on protocol to communicate from a Pi to a M0. I you have any idea, suggest, warning on how you would do that... It would really help. Thanks in advance.

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I might only need a very little number of key, so one communication could be "GPIO" based if I find a way to simulate from the Pi, the physical touch of a connector from the GEMA. But there also, communication is not clear to me.

stuck elbow
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@half sedge you could just use the UART

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both the pi and the trinket/gemma are 3.3V, so no problem there

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just connect rx, tx and gnd from the pi

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note that rx and tx should be crossed

half sedge
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Make sense. And connecting the ground.

stuck elbow
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then you can write to /dev/ttyS0 on the pi and read it from the uart on the CP

half sedge
#

And disable the "console" of the Pi to avoid interference.

stuck elbow
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yes, there are guides for that

half sedge
#

I think it is reachable goal for me...

stuck elbow
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let us know if you stumble upon any blocks

half sedge
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Is 3.0 beta still the latest?

solar whale
lone sandalBOT
manic glacierBOT
#
jerryneedell
[adafruit/circuitpython] New comment on issue #912: Getting files onto NRF52

It looks like there is some difference in the FS initialization when BLE REPL is enabled. I noticed that at some point in my testing, recreated the FS leaving only a lib folder. This done in supervisor/filesystem.h if no FS is found. SO wahtever is going on , when BE REPL is enabled, the FS appears to be read-only to python while via the USB REPL it is writeable. As I recall, this was a bit of a mystery anyway. Note
in the nrf build
CIRCUITPY_BOOT_OUTPUT_FILE is not defined.

//#def...
lone sandalBOT
manic glacierBOT
idle owl
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@slender iron That's supposed to address the filesystem hanging right?

slender iron
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dan's fix? it'll fix any hangs that happen with PDMIn

idle owl
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Ok. I'll rebuild with the potential updates to the CPX lib, because he thought that was what was happening there too.

slender iron
#

yup, seems reasonable to me

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@stuck elbow you around still? I'm trying to build for my ugame and I think we're missing a frozen submodule in the repo

lone sandalBOT
stuck elbow
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your ugame is ugame 8, not ugame 10

#

it has different pins

slender iron
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hrm

stuck elbow
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but yes, you also need the stage library

slender iron
#

would it have the sleep bug too?

stuck elbow
#

sure, however, it's not reproducible in recent builds

slender iron
#

k, even better

stuck elbow
#

so I guess it either went away, or randomly doesn't appear

slender iron
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I'm going to close it and feel free to re-open if it happens again

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do you have ugame10s in stock?

stuck elbow
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thanks, sorry I didn't update the issue

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I do

slender iron
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np

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k, I'll order one ๐Ÿ˜ƒ

stuck elbow
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thanks

slender iron
#

is there a trick to combining items for shipping? coudl pick up a pew pew fw too

stuck elbow
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just put them in the basket and check out

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if it counts shipping twice, I will refund it

slender iron
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the pewpew gives me options and the ugame doesn't

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ยฏ_(ใƒ„)_/ยฏ

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feel free to combine them

stuck elbow
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well, I only ship ugame with tracking, because it's too expensive to send in a letter

slender iron
#

makes sense

stuck elbow
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so no choice for it

slender iron
#

just thinking that may be why it didn't combine them

manic glacierBOT
lone sandalBOT
marble hornet
#

@stuck elbow could i ask for some help with sending blocks of data on the rgb display?

stuck elbow
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@marble hornet certainly, what's the problem?

manic glacierBOT
marble hornet
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i have NO understanding if the data format. i even tried copying the code inside of pixel and it didn't work

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my pixel by pixel text is rather slow, could i buffer all of them and send them as a black?

stuck elbow
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well, the data format is just 16 bits per pixel, arranged in rows

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with RGB 565 bits inside that 16 bits

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so R is 5 bits, G is 6 bits, and B is 5 bits

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so in particular 0xffff is white and 0x0000 is black

marble hornet
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rows?

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like [[],[],[],[]] ?

stuck elbow
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for instance, if you want to send a 8x8 block of pixels, you would do something like this:

buffer = bytearray(8 * 8 * 2)
index = 0
for y in range(8):
    for x in range(8):
        color = get_pixel(x, y) # calculate what pixel you need here
        buffer[index] = color & 0xff
        index += 1
        buffer[index] = color >> 8
        index += 1
#

does that make sense?

marble hornet
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oh so the data is sent like for 4x2: (0,0) (0,1) (0,2) (0,3) (1,0) (1,1) (1,2) (1,3)? the order of the pixels

stuck elbow
#

x is inner, y is outer

marble hornet
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inner? to the right ?

stuck elbow
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(0, 0), (1, 0), (2, 0), (3, 0), (0, 1), (1, 1), etc.

marble hornet
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so x first ?

stuck elbow
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yes

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if you think how those two loops work

marble hornet
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thanks, ill try it.

stuck elbow
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the inner loop executes all values for each rotation of the outer loop

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I might have gotten the order of bytes wrong

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I don't remember whether the little or the big one goes first

slender iron
marble hornet
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and x0,y0,x1,y1 ?

tulip sleet
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@slender iron I am here until about 6pm ET. I'll get started. Then will be back about 8:15pm.

idle owl
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Welp, I found a way to hang it. And hose my USB for a bit while the board crashes ๐Ÿ˜„

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But it's not the same way it was hanging before.

slender iron
#

@tulip sleet it can wait until next week too. I'm switching my brain to game mode

idle owl
#

@tulip sleet sound_level will continue to print without hanging on its own with your fix.

tulip sleet
#

that's the idea, good!

idle owl
#

However, I did find a way to crash it really solidly. I wanted to put together a bunch of code from the cpx lib in an attempt to get a MemoryError because that's another thing that was happening with the sound_level code before. And I wanted to make sure that all of the sound-related bits worked together. They.. kind of do. Like loud_sound and play_tone/start_tone/stop_tone all work great. I added play_file, and I started getting DAC already in use errors, which makes sense. I THINK the thing that crashes it hard enough to take out my USB temporarily is that the file I added for play_file was loud enough to trigger loud_sound. Which means loud_sound is being triggered during the file being played. That's my guess anyway.

marble hornet
#

@stuck elbow what if i did not want to change a pixel in the block?

manic glacierBOT
stuck elbow
#

you can't

marble hornet
#

okay

tulip sleet
#

@slender iron reviewed with a teeny change.

stuck elbow
#

you would need to somehow remember what it was before and send the same value

marble hornet
#

thanks for all the help! i'm very excited

idle owl
#

@tulip sleet Also the build I made has all of the libs in it, including HID and my changes to cpx lib. So the reduction in size from your updates must have been enough because I couldn't build with my changes the first time I tried.

marble hornet
#

i can just have them put in a background color

slender iron
#

@tulip sleet thanks! fixed

manic glacierBOT
idle owl
#

@slender iron Should we merge the CoC then? And replace the message in #code-of-conduct?

slender iron
#

I feel like we need broader review first

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just give everyone here a final chance to chime in before merging and rplacing

tulip sleet
#

oh, man, I already restarted two travis subjobs that excl-error'd out.

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now three

idle owl
#

@slender iron So should I link it in here again or did you have something else in mind?

slender iron
#

I think we need a message in general with an everyone ping in it

idle owl
#

Bold. ๐Ÿ˜ƒ That's on you then, we can't ping everyone.

slender iron
#

kk, mind if I wait until monday?

idle owl
#

Nope.

#

@tulip sleet Did you see the message about me managing to hang the fs?

slender iron
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kk, remind me next week and lets plan on being available around it too

idle owl
#

Ok sounds good.

tulip sleet
#

@idle owl yes ๐Ÿ˜ฆ could you file an issue with an example?

idle owl
#

Should I add the firmware.uf2 with it built in? I'm not even sure express.py run not frozen without memory issues. I didn't try it this time.

half sedge
#

Is there a Gemma Default Zip for 3.0.0 ? <= This is the content of the Gemma M0 when coming from factory, it contain adafruit_dotstar.mpy neopixel.mpy and adafruit_hid ...

idle owl
#

They haven't shipped with 3.0. The default zip contains the files that the board ships with. So no there isn't one.

#

@tulip sleet In trying to replicate the crash again, I narrowed something down, the DAC already in use happens regardless of anything but play_file.

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File plays once and then if you try to play it again it says DAC already in use. And it's not because it's already playing, I waited a while and tried it a second time and it fails.

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Fixed the issue. Now I need to rebuild it because it won't run any significant amount of code with the lib local.

#

Found another issue. bleh.

manic glacierBOT
idle owl
#

I was able to fix the issue for play_file by adding audio.deinit(), however I can't find a place to put a deinit() for start/stop_tone that doesn't result in an error saying that the object was deinitialised and can no longer be used. create a new object. But, it's not deinitialising on its own. If you run start/stop_tone and then try to play a file, it says DAC already in use..

raven canopy
#

@idle owl i thought i had a good explanation...but i ended up confusing myself and i'm not sure. ๐Ÿ˜„
the only difference i see in express.py is that play_file uses

while audio.playing:
    pass

which will call common_hal_audioio_audioout_stop if self->playing = true and the DMA has actually stopped. audioout_stop frees the DMA channel.

chasing the deinit problem is where i lost it. I tried... ๐Ÿ˜ฆ

idle owl
#

play_file is happy with the deinit(). It's start/stop_tone that isn't letting go evidently. I thought about trying to deinit() before creating the object, but you can't use deinit() until the object is created to have a thing to deinit() and outside of start/stop_tone that object variable is initialised as "None", so the deinit() has to be somewhere specific... I fixed it!

#

I had to deinit() and then immediately set it back to None. Then everything else works as it's supposed to!

# 
            if self._sample is not None:
                self._sample.deinit()
                self._sample = None```
#

I don't know where that should be, but I put it in play_file and it works!

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I feel like it should go in stop_tone() in case something else is trying to use the DAC. (I don't know what else would, but something might eventually.)

#

It works in stop_tone() as well!

raven canopy
#

you could also try using context management, so that it deinits by itself

with audio:
    audio.play()
idle owl
#

that's not how start/stop_tone works is the problem

#

That's how play_file works, so that would work in there.

#

but start/stop_tone uses sample generation and so on, so it's a little different.

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No idea whether this can be turned into context management type code: python if sys.implementation.version[0] >= 3: self._sine_wave_sample.sample_rate = int(len(self._sine_wave) * frequency) if not self._sample.playing: self._sample.play(self._sine_wave_sample, loop=True)

#

it calls the initialisation from another method

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Oh. wait, no that's only half of why it won't work, it doesn't call the end of the tone until you have stop_tone.

#

So it's all split into separate methods and functions.

#

I'm happy with this ๐Ÿ˜ƒ

raven canopy
#

that's what is important.. ๐Ÿ˜„

idle owl
#

Now to build it in and see if it hangs with combining sound_level and this stuff or if the hanging was related to the failure to deinitialise the DAC. I'm betting it still hangs.

raven canopy
#

i need food, but i don't want to leave debugland.

idle owl
#

Also, thanks for the help ๐Ÿ˜„

raven canopy
#

you're welcome, of course!

idle owl
#

hmm.

#

If you do start_tone too fast, it does a weird static thing. So something isn't happening right.

raven canopy
#

๐Ÿคฆ ๐Ÿคฆ i'm sitting here trying to figure out why my code changes aren't actually changing chip behavior. well, it helps to edit the correct file, and not a copy located in a different directory. yep. definitely need some Whataburger in my life...

idle owl
#

oh man.

#

Been there SO many times. Editing the wrong bloody file.

#

And it still hangs.

raven canopy
#

:sadface:

#

have you jlink'd it to see what is hanging?

idle owl
#

CPX... Don't know how to jlink it

#

It's using the CPX lib, so I can't simply transfer it to the Metro or something.

raven canopy
#

i think the pads are on the back. let me check the schem real quick.

idle owl
#

There are pads on the back...

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3 of them.

#

I have no idea how you get from 3 pads to the SWD connector.

raven canopy
idle owl
#

Oh wait that's the breakout I have, isn't it.

#

That gets me from pads to SWD.

raven canopy
#

yep! cut off the end of a jumper wire, tin the wire, tin the pad, and attach with heat. ๐Ÿ˜„

#

Trinket was the first one I did...already had header pins on it too. it wasn't the easiest solder job. hehe

idle owl
#

Thanks for actually saying that, if I bothered to do this, I would have simply used wires and then had to be stabbing those into a breadboard instead of nice jumpers.

#

I haven't done jlink stuff in ages, and I'm not sure I've ever done the finding where or why things are hanging bit.

raven canopy
#

yeah, sacrificial jumpers are nice to have. i usually use the female->male ones, since they don't get used much with me.

idle owl
#

I just bought so many jumper wires for reasons like this.

#

like 80 of each size and end.

raven canopy
#

solid core wire works just as well

idle owl
#

That's what I would have used

raven canopy
#

unless it's a smaller guage. then yeah, it's fun to keep them in place. ๐Ÿ˜„

idle owl
#

nah it's 22. I use them for jumper wires for breadboarding.

#

I think it's 22. Whatever it is I use it for making little jumperwires.

raven canopy
#

ok. food run. bbinas.

idle owl
#

Ok!

#

Interesting. It only does the static thing while sound_level is printing.

#

And I can still get it to fail with DAC in use if I try to go back and forth between play_file and start_tone really fast. Basically I have one of each on the two buttons, and if I press them both rapidly, it fails. I realise this is an extreme usecase, and theoretically shouldn't work anyway because play_file is blocking. I could try adding the deinit() back to the beginning of play_file again. It needs to stay in stop_tone though in case something externally wants to use the DAC. So both I guess?

#

building now.

#

with that change.

#

I need to back out of this branch and I think include this fix in the actual release. I assume this issue is present in the current version as this issue is unrelated to the added sound_level code.

marble hornet
#

random question okay?

idle owl
#

Sure!

marble hornet
#

is there a way to export an mpy to replace the previous mpy?

idle owl
#

I'm not sure I follow. If you run mpy-cross again, it replaces the last one in the directory.

marble hornet
#

what!

#

thank you, ill try that

idle owl
#

Oh good! Ok ๐Ÿ˜ƒ

#

I've been doing that all evening ๐Ÿ˜„

marble hornet
#

me too

#

and i have officially ran out of memory again!

#

what chip r u using ?

idle owl
#

SAMD21. Circuit Playground Express

#

So it breaks if you're playing a tone, and then you attempt to play a file. On both 2.x and 3.x. Breaks differently. It's time for food soon.

marble hornet
#

ditto, brain fuel

#

@idle owl weird!

#

may i ask what you are trying to make ?

idle owl
#

Trying to fix a library. Not currently trying to make anything with it.

marble hornet
#

mind another random question ?

#

@idle owl ?

idle owl
#

Sure

pastel panther
#

๐Ÿ‘‹

#

hi folks

raven canopy
#

hey @pastel panther. ๐Ÿ‘‹

pastel panther
#

it's been a while. I blame video games. ๐ŸŽฎ

raven canopy
#

they happen. ๐Ÿ˜„

idle owl
#

@pastel panther hey!

pastel panther
#

hi @idle owl ๐Ÿ˜ƒ

manic glacierBOT
half sedge
#

Maybe that ItsyBitsy M0 Express guide should be double check to make sure everytime you say ItsyBitsy M0, you never omit Express.

#

For a bit of time I was super confuse, not knowing if there was two kind of ItsyBitsy or a single one.

proven heath
#

I am working with a neopixel ring with 24 RGBW LEDs, when I try to pixels.fill(0, 0, 0, 255) I get an error function takes 2 positional arguments but 4 were given. Any advice?

stuck elbow
#

try pixels.fill((0, 0, 0), 255)

tulip sleet
ruby atlas
#

@proven heath pixels.fill((0, 0, 0, 255))

#

The second brackets ensure the value is a tuple

idle owl
#

@tulip sleet It's not supposed to be mirrored. It's specific to Itsy. We can still change the URL. I think there's a way in Learn to copy the contents of one page to another, and I think that's what Limor did and that's why my name is on it. Because I didn't actually write it, I edited it after she'd put it there. The URLs do weird things when they're duplicates of others, it puts the author in to make it different.

tulip sleet
#

@idle owl shall I change the URL?

#

that is, maybe it's linked from elsewhere?

idle owl
#

That's what I was worried about. I feel like probably not though.

#

The page was created really recently.

tulip sleet
#

If I edit the page and then click Page Settings, the URL ("PERMALINK") is available to change.

idle owl
#

Right. Might as well change it. change it to itsybitsy-circuitpython since I don't think it'll let you do /circuitpython

#

You can always change those URLs though that series of steps.

#

Oh it redirects. Nice.

#

I just went to the original URL and it took me to the right page.

tulip sleet
#

we crossed

idle owl
#

Indeed

tulip sleet
#

I just went to the local photography store and got a 3-foot light tent for $20 on clearance. I wanted to take some project pictures.

idle owl
#

Nice!

tulip sleet
#

did you read up somewhere on taking these kinds of photos, or did you just know how already?

idle owl
#

I guess I kind of just knew. Photography came naturally to me.

tulip sleet
#

getting lighting right has been hard for me. Hopefully this will make it easy. I got a black piece of posterboard so it can be Adafruit black

idle owl
#

It's tough without diffusion and so on.

#

I've used paper towels over lamps before to get better lighting

#

Lightboxes make it a lot easier.

tulip sleet
#

I got a very old (like 2007) Nikon DSLR (APS-size sensor) from someone at work last year for really cheap. Good lenses, not that high resolution, but should be really good for this

idle owl
#

The lenses are a very important part. If you have good glass, you can get good photos for the most part. Should work out well

manic glacierBOT
#
jerryneedell
[adafruit/circuitpython] Issue opened: #918 ESP8266 build broken in current master

Just pulled current master and esp8266 build fails

GEN build/genhdr/qstrdefs.generated.h
FREEZE modules
build/shared-bindings/pulseio/PulseIn.o:(.text.pulseio_pulsein_obj_get_paused+0x0): undefined reference to `common_hal_pulseio_pulsein_get_paused'
build/shared-bindings/pulseio/PulseIn.o: In function `pulseio_pulsein_obj_get_paused':
PulseIn.c:(.text.pulseio_pulsein_obj_get_paused+0x18): undefined reference to `common_hal_pulseio_pulsein_get_paused'
Makefile:250: recipe for targe...
#
jerryneedell
[adafruit/circuitpython] New comment on issue #918: ESP8266 build broken in current master

looks like this needs to be added:

jerryneedell@Ubuntu-Macmini:~/projects/adafruit_github/circuitpython_master/ports/esp8266$ git diff
diff --git a/ports/esp8266/common-hal/pulseio/PulseIn.c b/ports/esp8266/common-hal/pulseio/PulseIn.c
index 783442b..384000f 100644
--- a/ports/esp8266/common-hal/pulseio/PulseIn.c
+++ b/ports/esp8266/common-hal/pulseio/PulseIn.c
@@ -62,6 +62,11 @@ uint16_t common_hal_pulseio_pulsein_get_maxlen(pulseio_pulsein_obj_t* self) {
     return 0;
 }
 
+...
#
jerryneedell
[adafruit/circuitpython] New branch created: jerryneedell\-patch\-2
manic glacierBOT
#
jerryneedell
[adafruit/circuitpython] New branch created: jerryneedell\-patch\-3
solar whale
#

@tulip sleet Hope I got that right - fixed esp8266 and added an PR for nrf

crude fossil
#

Oh cool, I'm just finishing off a PR for #716 so I'll make sure it handles get_paused while I'm at it ...

solar whale
#

I sure hope Travis is not paid by the hour ๐Ÿ˜‰

manic glacierBOT
#
jerryneedell
[adafruit/circuitpython] branch deleted: jerryneedell\-patch\-2
#
jerryneedell
[adafruit/circuitpython] branch deleted: jerryneedell\-patch\-3
bronze geyser
#

Hey @idle owl - we're learning CPX using your tutorial. The slide switch example seems to execute too fast for the print statement. The output on REPL appears frozen. Have you seen that?...we ended up putting a time.sleep(1)..but thought you'd like to know ...

idle owl
#

@bronze geyser You know what, I do remember seeing that and thinking it was me. Thank you for letting me know! I'll update the guide and code to fix that when I get a chance.

bronze geyser
#

@idle owl - thanks for looking at it. I bought my daughter the adabox 006...she's new to programming. It was interesting watching her trying to get this to work.

#

@idle owl - the other thing - I wish the mu editor was "more robust." i'd pay for it because it is for the REALLY NEWBIE. mu kept freezing when we ran into this...

marble hornet
#

@stuck elbow do you have tetris running on a ugame?

stuck elbow
#

@marble hornet only the pewpew version

idle owl
#

@bronze geyser That's great to hear about your daughter! As for Mu, that it was freezing should be a bug. It's meant to be super simple and meant for people who are just getting started, that is correct. By more robust do you mean you wish it had more features, or are you referring to the freezing? It's still in beta so they're still working out bugs. There's a lot that's been fixed in the "current" version, but that version hasn't been released yet, in the sense that it's available on GitHub but not in a stable release.

#

They're working on it though!

#

@bronze geyser What operating system are you using?

marble hornet
#

@stuck elbow what is the pew pew version?

#

w/ speaker ?

#

checking github...

stuck elbow
#

and there is tetris for it

#

very simple, of course

#

it's just a 8x8 screen

marble hornet
#

adapting to ssd1306 oled possible if i put in some time?

stuck elbow
#

it's a console a friend made, uses the nokia display, which is very similar to the oled display

marble hornet
#

so pew-pew was the for-runner to the ugame?

stuck elbow
#

yes, pretty much

#

it still exists and I still sell it โ€” it's easier to program than ยตGame, because no graphics to speak of

#

right now it only has snake and tetris, but I want to write sokoban, flappy bird, boulder dash and maybe some more

marble hornet
#

interesting, so thr brick objects are the pew.Pix.from_iter?

stuck elbow
#

Pix is basically an image

#

.form_iter() takes a list of lists with numbers corresponding to colors to create the image

bronze geyser
#

@idle owl re: Mu - we use Macs. as far as ROBUST, to me robust is all about always working and working as it should. Feature tend to get in the way of that. Now - it is really, really hard to be happily robust. The challenge my daughter initially has with Mu is she doesn't come from a programming environment (at all). She is not learning in school (in fact she is 24). She's more used to using apps on her phone or tablet. So now...she installs Mu...to me it makes sense - "oh -it's sorta like inkscape - not really written for the Mac..." to her, it's like - what is this command line goop? I'm curious - I should check into the demographics of the folks developing Mu. They are most smart and excellent. They remind me however of the team i was on when i was one of 4 women in a cast of about 1,000.... super smart...

marble hornet
#

thank you @stuck elbow i'll take a look

stuck elbow
#

@bronze geyser as far as I know @plucky flint worked with actual live teachers on the design, and they tested it on human subjects

#

not sure what commandline goop you mean, though

bronze geyser
#

@idle owl re: cmd goop. You know when you start Mu and it is like starting inkscape? There is a terminal window that runs stuff. In fact, there isn't a Mu icon..rather the terminal window. re: live teachers and human subjects. THat's wonderful...although we did the same when I worked at large software company. The challenge was the interpretation the engineers had on the feedback. But what a wonderful and important thing Mu is.

umbral dagger
#

Anyone with a MetroM4: This is the second time I've moved code from an M0 board to the M4 and seen it slow down significantly. Latest beta in both cases.

#

Well, latest as of yesterday.

stuck elbow
#

@bronze geyser I don't have a mac, so I have no idea what you are speaking about

#

sorry

#

@umbral dagger what part is slow in it?

bronze geyser
stuck elbow
#

@wooden grove is that some beta version?

#

it has normal icon on windows and linux

bronze geyser
stuck elbow
#

I guess that's a question of packaging it properly.

bronze geyser
umbral dagger
#

It's particularly noticeable where I read an onboard digital input and immediately use that con set a digital output. On the CPX it was instant, on the Metro there's a visible delay. Read the input, write the output, nothing between.

stuck elbow
#

@umbral dagger visible delay? like at least 10ms? that sounds like there is something horribly wrong

bronze geyser
#

@stuck elbow - Mu's UI then is simple . which is great! The challenge then comes in going between REPL and the code. Particularly when the code gets into an infinite loop. That's what I mean by robust. The hardest thing to figure out what to do is when something goes wrong.

umbral dagger
#

@stuck elbow My thought exactly. Multple 100s of mS in some cases. It's not completely consistant either.

stuck elbow
#

macs are not particularly friendly machines for developers, not if you are not using the "official" tools

#

@bronze geyser well, at some point you have to learn about the "magic" stuff like ctrl+c

#

it's such a shame that Windows re-purposed the standard shortcuts

#

@bronze geyser if you have time, I'm sure @plucky flint would be happy to hear your feedback โ€” you could create an issue at github

umbral dagger
#

@stuck elbow Found the cause of my problem. Some weirdness with signal reading via the crikit.. it was also processing something that hardly ever happens (a switch closure) And processing it has a little delay in it.

#

It was strikingly similar to slow down behaviour I have seen earlier.

stuck elbow
#

ah, crickit is something completely different than a local pin

#

local pin toggles within ยตs, sending a command to crickit takes several hundred pin toggles, and some delays

#

it's like opening a local file versus opening it from network

umbral dagger
#

Yeah, IO get that. This is a different issue.

manic glacierBOT
#
jepler
[adafruit/circuitpython] Pull request opened: #921 Build for feather huzzah on travis\-ci

My primary motivation is that in the recent past, it has occurred several times that the huzzah build has been broken for days before a developer discovers it themselves.

In jepler/esp-open-sdk, there is now a travis integration which uploads the toolchain to github. There's a release (which is just a date tag) with a toolchain attached that seems to work on trusty and on debian stretch. (it's built on trusty, same as circuitpython uses for its tr...

#
jepler
[adafruit/circuitpython] New comment on pull request #921: Build for feather huzzah on travis\-ci

Possible problems and concerns include:

  • The trust in the toolchain is attenuated a step or two further, by using more binary artifacts. This could be somewhat mitigated if adafruit forked esp-open-sdk, added my travis.yml, and used those binary artifacts instead of the ones from my fork.
  • The original author of the esp-open-sdk scripts expresses some concerns: "redistributability of this build is unclear". Everything that is source is under the general umbrella of redistributable cod...
plucky flint
#

@bronze geyser hi, all feedback most welcome. Mu was designed and created based upon the feedback given by teachers and beginners to the Raspberry Pi Foundation. Mu is far from perfect, but we certainly put the beginner at the centre of our development process. For example, I've sat through many beginner workshops that have used Mu (without the participants knowing I'm the author) just so we can see how to improve and work out the most serious bumps. Having said that, Mu won't be for everyone and there are likely to be other tools that may suit you or your daughter better. Nevertheless, if you'd like to help improve Mu, then you'd be welcomed with open arms... our approach and developer docs can be found here: https://mu.readthedocs.io/ Of course, the way we do things isn't to everyone's taste, and I'm a proponent of "let many flowers bloom" so perhaps Mu simply isn't for you (and that's fine!). ๐Ÿ˜ƒ

#

@bronze geyser you must also realise that Mu is entirely developed by volunteers in their free time. If you know about packaging Python/QT5 applications as stand alone native apps, then feel free to step up and help out. You mention Window goop. In fact, we were asked specifically by the micro;bit foundation to emit the location of the log file since they found it helped them diagnose issues with school technical staff who couldn't find the log file.

#

@bronze geyser as for the icon... that'll be sorted when we've got OSX packaging done (see above). We're well on our way, but we all do this in our free time, and we make it very clear that this is pre 1.0 beta. When 1.0 final is out, we hope it'll have these kinks knocked out of it.

marble hornet
#

is heap supported up to 256 kb ram for 3.0 or 2.3.1 ?

stuck elbow
#

the 2.x doesn't work on anything that would have so much ram

manic glacierBOT
slender iron
#

@marble hornet we don't have configurable heap sizes yet. Its 128kb on all m4 builds at the moment

manic glacierBOT
manic glacierBOT
manic glacierBOT
unborn tulip
#

Im new here. Is this a good place to ask questions about using circuit python?

agile plover
#

Yes.

unborn tulip
#

Cool. Im having difficulty understanding how to use circuit python. I thought I installed it properly on my raspberry pi but the python interpreter wont import busio or board. Am I misunderstanding something?

#

Will the circuit python libraries work with a python interpreter?

#

Im also unfamiliar with python. I work almost exclusively in C++

agile plover
#

I think that you should ask one of the CircuitPython Helpers.

#

I am not that experienced in this field yet.

unborn tulip
#

ok so I just message one of them directly?

agile plover
#

You can, or tag oune of them

#

*one

unborn tulip
#

cool

#

Thanks for the help

agile plover
#

No problem.

marble hornet
#

@slender iron still 4x !! will there be configurable heap sizes eventually? I'd love to use all 256

raven canopy
unborn tulip
#

@raven canopy Thanks for the tip. I suspected as much. Ill check out micropython instead. Worst comes to worst Ill just do it in C++ ๐Ÿ˜‰

raven canopy
#

no worries. and the RPi has python available. python2 by default, with python3 available (last I used it, a while ago).

#

what are you trying to do/work with?

unborn tulip
#

rpi zero w

#

Using a DSM9DS1

raven canopy
#

ahh...there is no CPython library.

#

it could most likely be ported to CPython (regular Python), just need to change the SPI and I2C communication parts. At least at first look. Might be easier to use the C++ libraries, though if you don't feel like taking that on.

unborn tulip
#

Yeah I really havent worked with python at all. Ill just stick to my realm of knowledge. Though the call to python is strong.

slender iron
#

@marble hornet never the whole 256 since we use some of it internally. I do want configurable heap sizes though in the longer term. It will just reduce the stack size (which impacts functions calling functions)

#

<@&356864093652516868> and everyone else interested. The CircuitPython weekly meeting will be tomorrow as normal here on Discord. It happens in the circuitpython voice channel and this text channel at 11am Pacific / 2pm Eastern time.

ruby atlas
#

i saw "See all the pins" and first thought "i wonder what pins on what boards that's is about."

raven canopy
#

"Introducing, the SAMDiscord810, 64-bit microcontroller"?

timber mango
#

pinned

timber mango
#

itsybitsy_m4 is SAMD51G19A whereas metro_m4 is SAMD51J19A.

itsybitsy_m4 and the upcoming feather_m4 are both SAMD51G19A,
but -DCRYSTALLESS only for the itsybitsy_m4.

๐Ÿ“Ž boards.txt
marble hornet
#

@slender iron is there a place where I can read or watch about how this memory management works? or about heap sizes / why they can't easy pease change.]? just curious and want to learn! could I hack a non-configurable version to support the atsamd51X20 with the 256 on chip?

onyx hinge
#

@marble hornet as far as I can discern, the python heap is just statically allocated according to a compile time define: main.c:static char heap[PORT_HEAP_SIZE];

#

which is controlled in mpconfigport.h

#

for all the samd51 boards it is 128KiB, leaving the rest of the RAM for other uses like the stack and global C variables that can be modified

#

the amount of stack available in the metro m4 build looks like something between 50-60KiB, so you might try tweaking the Python heap up by 32kB and see what happens.

#

.. but you mentioned SAMD51x20 devices, which have 64KiB more ram than the 19s. If you're using the right linker scripts (I see they're in the source tree), then effectively all that extra RAM should be allocated to the C call stack by default. Just increase PORT_HEAP_SIZE by 65536 to use it for the Python heap instead.

#

you should be able to do this down at the mpconfigboard.h level

#

you'd have to tweak mpconfigport.h a bit (untested): ``` #define MICROPY_PY_SYS_PLATFORM "MicroChip SAMD51"
+#ifndef
#define PORT_HEAP_SIZE (0x20000) // 128KiB
+#endif
#endif

stuck elbow
#

what does ifndef without an argument do?

onyx hinge
#

it is error

#

should have been #ifndef PORT_HEAP_SIZE

stuck elbow
#

ah, I see

onyx hinge
#

@slender iron thanks for picking up that PR. That sums up my recent circuitpython activity, and due to other obligations I expect to remain quiet on the CP front this next week. I'll miss the weekly meeting as usual due to day job

slender iron
#

@onyx hinge no problem! I've been meaning to do that forever so I was happy to see it done

#

@marble hornet what jerry said plus you can search for "mark and sweep garbage collector" to learn about the method of garbage collection

manic glacierBOT
solar whale
#

@slender iron Iโ€™ll be listen only, probably read only, on a plane with spotty Wi-Fi. Group hug. Nothing specific to report.

slender iron
#

kk

raven canopy
#

I'll be in late.. post lunch traffic.

slender iron
#

<@&356864093652516868> meeting in three minutes or so

cunning crypt
#

Thanks for reminding me, I almost completely blanked on what time it was

onyx hinge
#

ooh looks like I can at least listen to the meeting today, I will be only paying half attention though, so don't look for any updates from me.

cunning crypt
#

๐ŸŽ™

#

Test complete.

timber mango
#

your audio is good Scott 11 June

cunning crypt
#

I guess people like horses, so that's why they go for the stable versions.

stuck elbow
#

sorry for being late

onyx hinge
#

oh I forgot about the stack thing

cunning crypt
#

Hug Report: Group hug! Nothing specific, I've had other things taking my time.

wraith tiger
#

Of course, there are always the niegh-sayers...

meager fog
#

y0y0

#

im textonyl

prime flower
#

got it scott

hollow ingot
#

Aivar Annamaa - Developer of Thonny - doing great experiments with ESP + Integrated Editor/Shell suitable for VGkits Vanguard
Espressif ESPTool - Being open to accepting PRs for weird uses of the tool + GROUP HUG

prime flower
errant grail
#

Group hug to the awesome CPy team. Originally, I could only understand about 10% of the discussions. Iโ€™m now up to 20%. Exposure to the technical terms and approaches has helped to spur me to learn more. Focused hugs to @OldCrow for sharing his ModulePlayground work -- has changed my approach to MIDI control message handling for my CircuitPython microsynth project. Also to @split ocean who provided feedback and patiently endured my obsessed ramblings about the microsynth project and supporting PCBs. More importantly, he gave me some new vectors to pursue regarding the overall approach to music synthesis. I will need a bigger maker budget.

#

The gaming platform will be awesome!

hollow ingot
stuck elbow
#

oh, a fellow mercurial user \o/

cunning crypt
#

I'm pretty sure that's not how you're supposed to caffinate

stuck elbow
#

always happy to be a rubber duck

wraith tiger
#

Although it is actually possible to absorb caffiene through the skin.

cunning crypt
#

It's less effective and less comfortable

timber mango
#

lol

wraith tiger
#

It's getting crowded in here. We're gonna need a bigger couch.

stuck elbow
#

@wraith tiger there are caffeinated shower gels โ€” you save time

timber mango
#

definitely.

cunning crypt
#

So, despite being points, they're still point-less?

wraith tiger
#

@stuck elbow And bar soap.

stuck elbow
#

They are pointy and pointless at the same time.

#

@wraith tiger toothpaste

timber mango
#

@raven canopy for pointing directly to the list of supported CP boards to a user (I need to start paying attention to README.md files!)
And to the the milieu for keeping me aware of ESP8266 enough to know it's supported in CP.
For the CircuitPython devs who dared to develop this Python very publicly, on Discord. ;)

raven canopy
#

Just a group hug this week.

meager fog
#

back

#

i have a feather m4 going out soon

cunning crypt
#

Status Update: I'm taking a poke at looking into the next version of my DigiBadges, and what I'll need to include a SAMD chip (Likely the 21) for CircuitPython on there. I'll definitely be looking at the super-sizing that @umbral dagger did a while back.

meager fog
#

heres a leek

cunning crypt
#

Ooooooh, feathers!

umbral dagger
#

@meager fog Yes please!

meager fog
#

all that's left to test is the DAC and I2S

#

and ill send out PCBs tomorrow - eta 2 weeks

prime flower
stuck elbow
#

@meager fog I see the tiny flash is there to stay

hollow ingot
#

Resolved some screwy behaviours I encountered when testing miniterm on Windows.
This has led to a rollup pull request you can see at https://github.com/pyserial/pyserial/pull/351 which should hopefully fix miniterm for Windows 10 users in general.
Can be tested by installing the vgkits-vanguard tools which already incorporate the fix following https://vgkits.org/blog/vanguard-tools-howto/ and running just 'vanguard shell' which should auto-detect ESP8266 on all platforms.

GitHub
Working CMD.exe terminal using Windows 10 ANSI support by cefn ยท ...

This pull should enable a working terminal on Windows 10 with all main control keys supported and proper console behaviours as demonstrated by connecting to a Micropython ESP8266 Vanguard board ( h...

cefn
Setting up the Vanguard Tools

This page shows how to install and configure the vgkits-vanguardย tool. This toolย allows you to connect over USB to your Vanguard boardย to learn python

meager fog
#

tiny flash is only thing that would fit

#

and still have some proto area

#

it is more expensive but not by a lot

cunning crypt
#

With the 64-pin chip required for I2S, I'm not surprised that the tiny flash won out.

#

I'm a little surprised that there's proto area at all

hollow ingot
wraith tiger
#

In high school, my friend's cat jumped up on the window screen and the screen fell out of the window.

stuck elbow
#

there are automated laser pointers

umbral dagger
#

There are several iPad games for cats.

stuck elbow
#

a fishbowl

tidal kiln
#

i'd say servo + lasers, but not for a broken leg ๐Ÿ˜ฆ

errant grail
#

The cat channel on the tele.

wraith tiger
#

videos of mice...

errant grail
#

Mostly PCB revisions over the past week. The Trinket-based Rover family should be done after boards arrive next week, just in time to start looking at the ItsyBitsy/Feather M4 for the next generation of building blocks.
Had a breakthrough regarding the MIDI protocol stack issue I faced two weeks ago when trying to fill CPy lists with verbose MIDI message descriptors. The primary issue was the space consumed by unused and undefined message headers. Woke up this morning and decided to go back to simpler (but still verbose) dictionaries with a non-sequential index, leaving out unused definitions and letting Try โ€“ Except handle the missing elements. Duh.
Next weekโ€™s plan is to finalize the microsynth code and to assemble the Rover board family with my spankinโ€™ new hot air station. Wish me luck.

hollow ingot
#

He likes youtube squirrels

wraith tiger
hollow ingot
#

The puzzle (for those on text) is he can't be encouraged to use his broken leg. So it has to be stuff he can see/hear and keeps his mental health.

umbral dagger
#

@hollow ingot Broken front or back leg?

hollow ingot
#

Front left

umbral dagger
#

Ah.. most of the ipad gam,es are probbaly out then. They involve poking at things.

hollow ingot
#

It's just a very dull life for him, especially if I'm away, and having some kind of automated, on-a-timer entertainment activity would keep him alert maybe.

#

Just thinking hanging something on a long string from a geared motor/continuous-hacked servo on the light-fixture could make an easy 'flying' thing when you turn it on. It'll be out of his reach but interesting to watch if it's only active rarely.

stuck elbow
idle owl
#

Yes!

stuck elbow
slender iron
#

@meager fog do you ahve hug reports and status updates?

timber mango
#

expectations works very well in the written form .. nice work thinking this one out, @idle owl

meager fog
#

hi sorry im in and out

slender iron
#

np

meager fog
#

lots meetings today

#

update for me is itsy m4 is out, feather m4 on the way

wraith tiger
meager fog
#

no plans yet on the mega m4

#

but we'll probably saunter into it some time this month

#

feather crickit is out

cunning crypt
#

I like the idea of a Mega M4

meager fog
#

great for feather bots, could be used with m0 xpress or esp8266 for iot bots

#

hugs to everyone! kattni for rockin out the CPX guide, its excellent, dan fixing the pdm bug that bedeviled me, scott for diving into gaming thoughts, brent for writing some sweet guides

hollow ingot
meager fog
#

and of course contributors: carter, cefn, sommersoft, deshipu, CG, jepler, jerryn... more more more i see all the great projects and commits they're awesome ๐Ÿ˜ƒ

cunning crypt
#

@idle owl Your day tomorrow will be a bit... plane?

idle owl
#

@cunning crypt Hopefully as boring as ever, indeed.

meager fog
#

we still have l0ts of itsy m4's and i didnt put a limit on them cause i think they're solid - i know they were requested by many ๐Ÿ˜ƒ

#

thats my n00z

tidal kiln
#

@cunning crypt TBD, it's kind of up in the air

slender iron
#

thanks @meager fog !

cunning crypt
#

@tidal kiln Hopefully they don't just wing it.

#

Not all audio files are a sound idea.

timber mango
#

Studying the uses of the H-Bridge (DRV8833) and trying to learn the heuristics of estimating which loads will be within the constraints of the Crickit at 5 volts --
โคโ€ƒโ€ƒtrying to learn how to stay within the design goals of the Crickit system (rather than circumventing them).
โคโ€ƒโ€ƒNoticed that basically there's one set of four Darlington drivers (as with ULN2003A) which is good for a singleton Unipolar stepper, I think -- and one set of four H-Bridge terminals for the Bipolar stepper.
โคโ€ƒโ€ƒNote the easiest way to discern between them is that the one brings out +5V (the Darlington, as it completes the ground by sinking current) and the other (DRV8833) (the H-Bridge) brings out GND as its fifth terminal.
โคโ€ƒโ€ƒDRV8833 is available as its own breakout, if you're hunting more documentation.

meager fog
#

@timber mango there's a stepper page now

#

which will answer all your uni/bipolar stepper Qs ๐Ÿ˜ƒ

cunning crypt
#

Oooh, we can really step up our game now.

errant grail
#

The DRV8833 also has some internal protection, too.

meager fog
#

it has current limiting which we use

#

even though motor drivers have 'over temp' protection it doesnt always work, overcurrent with a resistor is guaranteed, so we lean on that

errant grail
#

It's been pretty foolproof for me so far.

meager fog
#

compared to the TB6612, the DRV8833s are much more reliable

#

but they are lower voltage, in this particular case its better

stuck elbow
#

I thought that steppers love high voltages

slender iron
#

@drowsy fox I can circle back to you after scott

hollow ingot
#

Oh, yes. Status: forgot, due to prepare an "audio object" workshop, based on the gubbins in https://forum.micropython.org/viewtopic.php?t=4347 hosted out of the More Music project (about 200m from my house) with a rough ยฃ15=$20 BOM and 10 learners with an open design process to invent any kind of sensor-driven-object which triggers a sound. Accessible guides for sourcing audio+foley e.g. extracting from Youtube, where to get Public domain samples would be very useful for that too. What's the cheapest Adafruit-flavour Circuitpython combo for playing .wav or .mp3

drowsy fox
#

i was connected from the pc, with no mic. now i'm from the phone,

stuck elbow
#

@hollow ingot you can play audio on a trinket m0 or gemma m0 if you compile custom firmware for it, otherwise you need an express board

drowsy fox
#

@slender iron

slender iron
#

kk, will call on you after sdw. thanks!

stuck elbow
#

@hollow ingot that's the wav, for mp3 you will need an external module

#

there is an audio featherwing for that, but there is no driver for circuitpython for it yet

drowsy fox
#

cool

hollow ingot
stuck elbow
#

welcome!

tidal kiln
#

@drowsy fox hi and welcome.

idle owl
#

Welcome, @drowsy fox! And, we all started programming somewhere ๐Ÿ˜„

errant grail
#

Welcome @drowsy fox !

meager fog
#

hi @drowsy fox welcome!!!

onyx hinge
#

@drowsy fox welcome! in another life I worked on an open source CNC, LinuxCNC.

solar whale
#

Yay, landing, going offline. Have a great day all,

tidal kiln
#

links! u need links! we have links....

timber mango
#

MakeCode is block oriented no writing code

stuck elbow
#

python makes it easier

tidal kiln
cunning crypt
#

CircuitPython makes a lot of things easier.

stuck elbow
#

you can also team up with someone here

idle owl
#

@drowsy fox That's when you make friends with someone who programs and doesn't know how to design the project!

hollow ingot
#

If there's something adafruity a bit more integrated than wiring 3.5mm jacks and jumpers between duponts to achieve an audio-sample-player, especially one having written support materials it might be better to use that for the workshop.

wraith tiger
#

I'm in NJ

raven canopy
#

High Frequency PulseIn: SAMD51 is working with the EIC/EVSYS, though it seems less accurate than SAMD21 in my testing. Maybe DFLL48 related (grasping at straws)?? Have started framework for using COUNT as an alternative, as suggested by @tannewt. Also started reading on nRF timer docs for implementation. Since the High Frequency PulseIn issue was closed, I was thinking of changing the Frequency counter issue to separate out the sensor that is requested into a different issue. < https://github.com/adafruit/circuitpython/issues/807>

Dismantled an old satellite surround speaker, to see if I can use it for a Little Leslie amp using blinka and Crikit. Planned to use an Adafruit box, but current speakers are too large. Still early days on this...

cunning crypt
#

I can sympathize with being more hardware minded than software minded. Programming is less fun than building things.

hollow ingot
#

I think there are a lot of folks like @drowsy fox out there for whom crafting is more natural than programming and I would love to succeed at opening up a hyperspace bypass between the two. That's what my work should all be about.

timber mango
#

leslie cabinets physically rotate a loudspeaker

wraith tiger
#

Ah, yes, they produce dopler effect tremolo.

hollow ingot
#

@drowsy fox what do you use servos/steppers for in your projects?

tidal kiln
#

nema24 servos? wow. that's not the typical hobby servo.

idle owl
#

That's how Adafruit started ๐Ÿ˜ƒ

onyx hinge
#

@tidal kiln CNC servos are quite different to RC servos.

tidal kiln
#

you're in pid land

drowsy fox
#

https://www.geckodrive.com/g320x.html

G320X Digital Servo Drive

The G320X is our popular, low-cost DC brush type servo driver. The G320X has a power range of 18 โ€“ 80VDC and 0 โ€“ 20A meaning it can drive larger servo motors with ease. An internally closed PID loop ensures your motor will maintain position and correct for lost steps whil...

wraith tiger
tulip sleet
tidal kiln
#

@drowsy fox what motor(s) do you pair with that?

tulip sleet
raven canopy
#

Thanks everyone!!

hollow ingot
#

Thanks all

wraith tiger
#

๐Ÿ‘‹

errant grail
#

Thanks!

drowsy fox
#

@tidal kiln name34 dc servo

timber mango
#

@drowsy fox how do you control it without writing code?

drowsy fox
#

linux cnc controll it

#

this is the kit i have on the cnc machine

timber mango
#

aha. Thank you. I'm oriented towards reinventing the wheel. It's nice to know where the wheel is kept. ;)

drowsy fox
#

it is much much larger scale then the name 17.. but i'm sure you can make it work with smaller motors.

timber mango
#

72 V 20A servo! /woot

drowsy fox
#

the power supply is a monster.

stuck elbow
#

I usually use the 4g sub-micro-servos

#

you could really make a robot that jumps with those

timber mango
#

KL34-180-90 (NEMA34) Dual Shaft, 1125 oz-in Peak 90V/40A

#

Do the lights dim in your appartment when it stalls?

#

This Discord has only been here about .. 20 months or less. It takes time to build a community. BRING A FRIEND. ;)

onyx hinge
#

@drowsy fox for people who approach CNC from the direction of 3D printing, they tend to think of motors that cost under 20USD and drivers that cost around 10USD, so the prices of "real" CNC parts tend to be shocking by comparison.

slender iron
#

?serverinfo

digital shoreBOT
#
adafruit
Owner

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Channel Categories

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@everyone, community helpers, admins, Dyno, Muted, world-maker-faire, seattle-mini-maker-faire, osh-summit, multiplayer-gaming, MissedTopicBot, circuitpython helpers, metro m4 testers, Show & Tell, ATMaker, Master Punner, MakingBot, Educator, stealth helper, digi-key

ID: 327254708534116352 | Server Created ยท
slender iron
#

we're less than a year old!

drowsy fox
wraith tiger
#

I do a little with 3D printing and design.

timber mango
#

That's very nice metal work.

wraith tiger
#

I got into it because I was interested in electronics and wanted to be able to make enclosures, etc.

raven canopy
#

Needs at least 4 levels of rougue... ๐Ÿ˜„

drowsy fox
hollow ingot
#

I bought a hobby lathe (suitable for working plastic and very light metals) a long time ago - still in the box ๐Ÿ˜ฆ

timber mango
#

That's a big billet of metal.

tidal kiln
#

schematic capture?

timber mango
#

what does the board do?

hollow ingot
#

Need a real-world meetup in a real-world workshop somewhere to make sense of it all. I had just hit enough stupid mechanical quality issues to know that I couldn't bodge with Lego but haven't really tackled the next steps of getting comfortable and familiar with machine fabrication.

timber mango
#

sounds like DC interconnects mostly.

tidal kiln
#

any photo / link to info on the board?

timber mango
#

You could probably cut mill copper clad board with CNC machine

wraith tiger
#

Yeah, thay have done a number of boards on the othermill.

stuck elbow
#

the tricky part with cnc-ing PCBs is with leveling the bed so that the tool only catches copper and not the fr4

tulip sleet
stuck elbow
#

by the way, if you find KiCad too hard, try Fritzing โ€” it's much more limited, but easier to start with

drowsy fox
timber mango
#

That's about the same resolution as the old paint and etch PCB fabrication technique for home production.

stuck elbow
#

pretty shiny lights

drowsy fox
wraith tiger
#

Yeah, "pink vampire" could describe Lady Ada on Halloween.

stuck elbow
#

@drowsy fox by the way, I think I met you at #arduino on freenode previously

timber mango
#

compost drum

#

take food waste and turn it into soil for the garden

tidal kiln
#

isaac.wellish

timber mango
#

Yeah a good keg sized compost drum

stuck elbow
#

washing machine motor

timber mango
#

The last round of vacuum tubes were miniatures before they phased them out from retail stores, around 1976.

drowsy fox
timber mango
#

Shake the house

tulip sleet
timber mango
#

nixies take higher voltages.

#

Like around 100 volts or so.

stuck elbow
#

they are basically neon lamps, no?

#

like the one you have inside a screwdriver probe

drowsy fox
timber mango
idle owl
#

@slender iron Are we meeting later?

drowsy fox
wraith tiger
#

There are also very rare devices called NIMO tubes.

#

https://en.wikipedia.org/wiki/Nimo_tube

Nimo tube

Nimo was the trademark of a family of very small non-standard CRTs manufactured by Industrial Electronics Engineers around mid-1960s, with 10 electron guns with stencils which shaped the electron beam as digits. The Nimo tube operated on a similar principle as the charactron,...

idle owl
#

On the rotary encoder, each click of the knob is associated with one of each (A/B or B/A) of the signals being produced, right? As in each click involves both and A and B signal change. Gah, trying to write this out in a way that makes sense is not working. Both A and B change each time the knob clicks. The order in which they change is based on the direction the knob is being turned. Correct?

stuck elbow
#

correct

idle owl
#

Thank you

meager fog
#

@slender iron hey so testing m4 w/i2

#

do i need latest latest 3.0 beta?

#

AttributeError: 'module' object has no attribute 'RawSample'

slender iron
#

@meager fog latest would be best. what version do you have now?

meager fog
#

Adafruit CircuitPython 3.0.0-beta.0-85-gb2d98ed on 2018-06-08; Adafruit Feather M4 Express with samd51j19

drowsy fox
slender iron
#

@meager fog it might be misconfigured

tidal kiln
#

@idle owl what're you working with?

meager fog
#

ooh! ok

slender iron
#

nothing has changed that recently

meager fog
#

i noticed RTD mentions m0 only, perhaps m4 i2s isnt done?

#

or just the feather

slender iron
#

I definitely tested it on there

#

ah! rawsample is in audioio

#

the example is wrong

#

(I usually write them before I implement it)

meager fog
#

np

#

ok i got a new different better error

#

that fixed it!

slender iron
#

progress!

meager fog
#

ill report back shortly

slender iron
#

๐Ÿ‘

idle owl
#

@tidal kiln Writing a guide using rotaryio. So I'm trying to write the overview.

#

@slender iron I think the issue I was having is a lib issue. Or a concept issue, but I don't think it's a core issue. I know, I know, you said stop thinking that way, but I think I might be right. Once I looked at it again.

#

Anyway I put in a PR for the CPX lib that fixes it.

slender iron
#

kk, I'll take a look tomorrow morning

tidal kiln
raven canopy
#

@idle owl it may (or may not) help if you read up on "grey code".

idle owl
#

@tidal kiln Yes.

#

@raven canopy I have read about and discussed it at length. ๐Ÿ˜„

slender iron
idle owl
#

The grey code is done in the background for rotaryio. So we're not explaining it in the CircuitPython bits of the guide.

slender iron
tidal kiln
#

@idle owl don't worry too much about what the clicks mean w.r.t. pulses. i think it's mainly there for feel. a lot of encoders don't even have any click. but you got the right idea about how the A/B pulses work.

idle owl
#

@tidal kiln I was sort of writing it for this encoder specifically, and it clicks, so I was using that. since the second example tracks the number of clicks to determine how much to change the volume. I dunno. I evidently understand how they work, every time I've asked to talk to anyone about it, I'm told I understand it. I am struggling to turn that into useful guide information for some reason.

tidal kiln
#

i think what can be confusing is if you're using quadrature, you'll get like 4 counts per click, since it does a full cycle per click.

#

which is just specific to that knob, in terms of what it's doing with each "click"

idle owl
#

I have this: "When rotating clockwise, the A pin connects first, followed by the B pin. When rotating counterclockwise, the B pin connects first, followed by the A pin. By tracking when each pin is "on", we can not only determine which way the knob is being rotated, we can also track each click of the knob. Each click of the knob is associated with a change in both A and B signals. The order in which they change is based on the direction the knob is being rotated."

#

It never says it's only one change in each.

tidal kiln
#

that's more or less it. do you know the diff between quadrature and non-quadrature?

idle owl
#

No. This one uses quadrature so I hadn't looked into non-quadrature.

manic glacierBOT
wraith tiger
#

Well, I fixed test_uflash.py so "make test" no longer gives me errors. Now I'll have to figure out what new tests I ought to add.

cunning crypt
#

@wraith tiger Test your tests.

wraith tiger
#

Getting testy are we?

cunning crypt
#

No, that's your job right now

wraith tiger
#

Argh! Accidentaly zz'd my vim window. ๐Ÿคฆ

manic glacierBOT
#
tannewt
[adafruit/circuitpython] New tag created: 3\.0\.0\-beta\.1
cunning crypt
#

@slender iron I think you should get one of these: https://novelkeys.xyz/collections/frontpage/products/the-big-switch-series
Then connect it to a CP device with an RTC. When you press it, it acts as a keyboard and spits out the current time, so you don't have to do it manually.

NovelKeys, LLC
The Big Switch Series

This is the NovelKeys Big Switch Series.

These switches are 4 times bigger on each side than a normal MX switch.
That comes up to 64 times bigger in volume.
These switches are fully functional.
All switches come with a matching keycap.
If you are in need of a Big Switch case...

#

Then we'd know when you're taking time stamps. Click click click click thunk

slender iron
#

๐Ÿ˜ƒ that'd be neat. I grab the time from OBS though not RTC

cunning crypt
#

Meeting time, not actual time. I'm sure you could program it in somehow.

slender iron
#

ya, true

#

or someone else could do timecodes ๐Ÿ˜ƒ

frosty summit
#

hi folks

#

right place re PlayGround Express device queries?

cunning crypt
frosty summit
#

thanks @cunning crypt. I'll check there 1st before coming back

cunning crypt
#

@frosty summit Regardless, it'll probably be the same people helping you, it's just a matter of keeping things on the correct topic.

frosty summit
#

@cunning crypt; yea, I get that. I'm already sufferring from comms-overload, so compartamentalising discussions seems appropriate

cunning crypt
#

It helps to go through an mute everything that's not relevant to you. Cutting down on the "Unread" notifications can help with comms overload, at least for me

slender iron
#

anyone have a huzzah handy?

stuck elbow
#

o/

hollow ingot
#

@slender iron I have one upstairs I think

slender iron
#

I haven't actually tested the travis builds yet

hollow ingot
#

What's a good test? Just a REPL?

#

or more detail

slender iron
#

yeah, REPL is enough

stuck elbow
# 
Adafruit CircuitPython 3.0.0-beta.1 on 2018-06-11; ESP module with ESP8266
>>>
slender iron
#

๐Ÿ‘ thank you!

stuck elbow
slender iron
#

๐Ÿ˜„ thats why I asked if anyone else had it handy

stuck elbow
#

it's been a while

#

I need to get back to it

manic glacierBOT
silver tapir
stuck elbow
#

oh, nice, are those the fixed ones?

#

they came out great

silver tapir
#

Yeap, the fixed ones.

#

Thanks for sharing the design on oshpark.

#

โค

slender iron
#

those look awesome! is there an oshpark link for it? will add to the newsletter

stuck elbow
slender iron
hollow ingot
#

@stuck elbow @slender iron if you forget esptool config, try...

# 
cefn-bionic-thinkpad:vgkits-vanguard$ virtualenv myenv
(myenv) cefn-bionic-thinkpad:vgkits-vanguard$ pip3 install vgkits-vanguard 
(myenv) cefn-bionic-thinkpad:vgkits-vanguard$ vanguard see firmware
(myenv) cefn-bionic-thinkpad:vgkits-vanguard$ cp ~/Downloads/adafruit-circuitpython-feather_huzzah-3.0.0-beta.1.bin /home/cefn/Documents/shrimping/vgkits/git/vgkits-vanguard/myenv/lib/python3.6/site-packages/vgkits/vanguard/data/firmware/circuitpython-3.0.0-beta.1.bin
(myenv) cefn-bionic-thinkpad:vgkits-vanguard$ vanguard brainwash circuitpython
(myenv) cefn-bionic-thinkpad:vgkits-vanguard$ vanguard shell 

Launching Miniterm to connect to Vanguard Python Shell
Running 'serial.tools.miniterm --raw  --eol CR --encoding ascii /dev/ttyUSB0 115200'
--- Miniterm on /dev/ttyUSB0  115200,8,N,1 ---
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---

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

Adafruit CircuitPython 3.0.0-beta.1 on 2018-06-11; ESP module with ESP8266
>>> 
--- exit ---
(myenv) cefn-bionic-thinkpad:vgkits-vanguard$
#

Man that's junked it. Will try a gist

stuck elbow
#

use "```"

#

you can edit your message

hollow ingot
#

Still pretty junked at least on my machine because of the wrapping

# 
virtualenv myenv
pip3 install vgkits-vanguard 
vanguard see firmware
vanguard brainwash circuitpython
vanguard shell
#

That's the fundamentals anyway

#

'see firmware' just does a cross-platform file-explorer load of the folder containing the firmware so you can see it

stuck elbow
#

what is vanguard?

hollow ingot
#

I did a quick test on Feather Huzzah which worked on my machine with that sequence at least.

stuck elbow
#

it seems very complicated compared to esptool.py --port /dev/ttyUSB0 write_flash 0 adafruit-circuitpython-feather_huzzah-3.0.0-beta.1.bin

hollow ingot
#

Except you already have a shell program installed, and you already know what your serial port is called, and you know how to use esptool. Adding the installation and configuration of a VT100 emulator on Windows into a single line ๐Ÿ˜ƒ Also you need to know how to source firmware, and use the terminal even to get in the proper folder. And you're lucky that esptool defaults to qio

#

Really all you need is...

# 
vanguard brainwash circuitpython
vanguard shell```
stuck elbow
#

of course I already know all those things

hollow ingot
#

The aim is that same sequence should work for D1 Mini, NodeMCU, Vanguard, Feather Huzzah, and ESP32 also

#

meaning that people can be easily guided without lots of 'insider knowledge' needed to take account of their situation

stuck elbow
#

and the firmware has been given to me

#

so I don't actually need to fight with the tool to make it use a custom one

hollow ingot
#

'fight with the tool' ? is there something I could do to make it better?

stuck elbow
#

let me specify the path to the binay in the command, instead of having to copy it into some magical location?

hollow ingot
#

Thanks for the suggestion, @stuck elbow. I didn't show you the path to the binary way as I wanted to share the 'dumb user' way.

# 
Usage: vanguard brainwash [OPTIONS] [TARGET]

Options:
  -r, --release TEXT
  -p, --port TEXT
  -b, --baud TEXT
  -e, --erase BOOLEAN
  -f, --flash BOOLEAN
  -d, --device TEXT
  -i, --input PATH
  --help               Show this message and exit.
stuck elbow
#

ok

hollow ingot
#

I am a bit uncomfortable with having 'blessed' versions which are distributed in the bundle via PyPI but it certainly makes life easy.

#

I've found myself trying to simplify throughout to the use of named options 'input' and 'output' but it might be crazy compared to something more context-specific like --firmware.

#

However, I have arrived at a good name for the backup option I think, for the next version ๐Ÿฆ

#

vanguard brainfreeze --output mybackup.bin

manic glacierBOT
raven canopy
#

@idle owl just looked at the Expectations guide. I see no issues with it. well done!!

idle owl
#

@raven canopy Thanks! I was more suggesting looking at it so you're familiar with what's there. That way you can refer people instead of duplicating any of the info in answering questions. Thanks for your suggestions for it!

manic glacierBOT
raven canopy
#

ahhh. i think i was having an office discussion at that point. i usually re-watch later in the day to re-cement the discussions. loading YT now.. ๐Ÿ˜†

idle owl
#

I may not have made it clear in the chat either.

#

@raven canopy Anyway better you looked at it, could have had issues!

drowsy fox
#

someone know what is the programing language for the hsm express post processor?

#

it's look like Java script, but i can't make it push a string.

raven canopy
#

@drowsy fox never used it, so this is outside conjecture, but it does appear to be JavaScript. Found an Autodesk page that said post was "based on JavaScript", so it may not be a direct implementation. I'm looking at the Haas hass.cps, and it definitely looks like JavaScript; the var name = { is why i think that...

#

disclaimer: I am not a JavaScript programmer

drowsy fox
#

writeBlock(gUnitModal.format(61));

#

that add G61 to the code.

raven canopy
drowsy fox
#

and i want to change it to "G64 P0.05"

#

to just copy and paste there?

raven canopy
#

yep. or restate it as a JavaScript question..

raven canopy
#

is anyone else plagued by constantly typing circuipython or circuitptyhon? it happens to me like 5 times a day... ๐Ÿ˜†

cunning crypt
#

My annoying habit is my right hand ends up one letter to the left on my keyboard, and I'll type a whole sentence without realizing it.

raven canopy
#

o cam see jpw tjat wpi;d get ammpuomg///
i can see how that would get annoying... ๐Ÿ˜„

cunning crypt
#

It's almost always the right hand, too. Although sometimes I'll just drop the ball entirely and both hands will be wherever they please. That's a fun one to look at

raven canopy
#

haha. i'm a "tapper", so i'm always looking for the home-row nubs. a former co-worker was overjoyed once they learned i wasn't actually typing as much as they heard; felt they were abhorrently failing to work as hard. ๐Ÿคฃ

cunning crypt
#

I had the advantage of growing up with computers everywhere, so typing is just a thing I do. Usually well enough.

idle owl
#

@raven canopy I can't seem to type ItsyBitsy right on the first try to save my life.

raven canopy
#

whew. at least i'm not alone on all this...

idle owl
#

Oh no. Not at all.

languid sage
#

Love this "off-topic" discussion. I call it dyslexic fingers. I once had access to several office assistants, none of whom could reliably type the word "vehicle"... not normally a problem, unless you're the IT manager for the Vehicle Inspection Program.

manic glacierBOT
#
ladyada
[adafruit/circuitpython] Issue opened: #924 prettify Adafruit\_Pixie library

we have an arduino library for these mindblasting pixels
https://www.adafruit.com/product/2741
i just made a short example that mimics NeoPixel's format but it needs a repo, splitting up into a proper module etc!
https://forums.adafruit.com/viewtopic.php?f=52&t=136796&p=677580#p677580
no rush on this one
see the circuitpy neopixel library for inspiration
https://github.com/adafruit/Adafruit_CircuitPython_NeoPixel/blob/master/neopixel.py#L78

if you can get it to cookiecutter+travis po...

crude fossil
#

I used "sqitch" on one job and it took a long time to learn not to type that 'u'...

raven canopy
#

and to validate the difficulty, i immediately thought "squitch is mispelled, even though it isn't a word". ๐Ÿ˜„

manic glacierBOT
slender iron
#

@crude fossil are you waiting on me for anything?

crude fossil
#

Assuming you're generally happy, I'll put it into a PR this (gmt+10) evening ... was going to do it on the weekend but the weather was too nice :-)

slender iron
#

yup, no concerns from me. PR is the next step in my mind. nice weekend weather is definitely a priority

crude fossil
#

In Melbourne, in winter, if the sun comes out you go with it*

  • bring a raincoat
slender iron
#

yeah, seattle is the same way

manic glacierBOT
manic glacierBOT
#
tannewt
[adafruit/circuitpython] New comment on issue #874: 3\.0 Beta: busio\.UART read\(nbytes\) returns empty bytearray on timeout rather than None

Will validate that it matches CPython:

 read(size=-1)

    Read up to size bytes from the object and return them. As a convenience, if size is
unspecified or -1, all bytes until EOF are returned. Otherwise, only one system call is
ever made. Fewer than size bytes may be returned if the operating system call
returns fewer than size bytes.

    If 0 bytes are returned, and size was not 0, this indicates end of file. If the object
is...
manic glacierBOT
manic glacierBOT
#
nickzoic
[adafruit/circuitpython] Pull request opened: #926 Implement pulseio\.PulseIn and PulseOut for ESP8266 \#716

Implements pulseio.PulseIn and pulseio.PulseOut for ESP8266 as per #716:

PulseIn:

  • Tested to work with adafruit_dht library and DHT11.
  • Tested to work receiving IR remote control codes from a IR demodulator
  • Also includes fix for #918

PulseOut;

  • Unfortunately very limited by the ESP's 1kHz-max software PWM.
  • Tested on a 'scope and seems okay, within that limitation.

It also implements a generic gpio interrupt callback registration mechanism under microcontroller.Pin: this w...

marble hornet
#

@onyx hinge thank you for the help! i'll def be using that! excited !

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also nice name

manic glacierBOT
#
dhalbert
[adafruit/circuitpython] New comment on pull request #839: Add precise\_time module

I revisited this again, and found this interesting new accepted PEP, to be implemented in Python 3.7: https://www.python.org/dev/peps/pep-0564/. See below. The new functions defined in this PEP return integer nanosecond values. We could implement some of these: we still have a wraparound or overflow problem, but using these names allows compatibility with regular Python.

We could still have a single precise_time.time_monotonic() that could return a tuple of (seconds, nanoseconds), or m...

umbral dagger
#

Just looked at the Expectations writing you folks were mentioning... I thought you'd added a testing framework...

manic glacierBOT
onyx hinge
#

I have an SPI-like signal (clock and data) I'd like to read. Can CP act as an SPI slave? Additional difficulty: no CS, have to wait for X microseconds of dead time on the clock input.

tulip sleet
#

@onyx hinge no builtin SPI slave capability. See if PulseIn would work for you. Arduino has no standard SPI slave library either, though I can find some examples of people trying to do it.

onyx hinge
#

I think PulseIn will only read a single channel

tulip sleet
#

you can sample two at once and try syncing them up. Scott would have a better handle on this. You could also figure out the clock freq and then assume a frequency when decoding the data line.

onyx hinge
#

Or I could stick with arduino where I already have it working ๐Ÿ˜œ

tulip sleet
onyx hinge
#

interesting chip to be sure

manic glacierBOT
manic glacierBOT
#
dhalbert
[adafruit/circuitpython] Pull request opened: #927 PDMIn: turn serializer on when starting DMA

Thought about this some more, and realized that synchronizing the turning on of the serializer with turning on DMA might solve the problem of lost triggers. The PDMIn clock to the microphone still runs all the time, to avoid microphone startup time (verified with Saleae), but the serializer is turned on and off as needed.

Tested on Metro M0 and M4, and works. I left in the hang prevention added in #916, because it's cheap, but tested with that temporarily turned off to make sure this new f...

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dhalbert
[adafruit/circuitpython] New comment on issue #869: Investigate M4 bootloader overwriting when not protected

More notes from testing done a few weeks ago:

  • This problem seems to happen even with an external CIRCUITPY filesystem, so doesn't seem likely it's filesystem code gone awry.

  • Maybe it's not circuitpython at all, but something in the UF2 bootloader. I tried putting in some simple checks for writing to 0x0, but there was a catch-22 of uploading the bootloader itself. Didn't have time to figure out how to disable the boot protection and load via J-link, or else put in fancier checking t...

manic glacierBOT
marble hornet
#

some i2c and spi slave libraries sound like a great enticer for people to join the platform ...

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if i hadn't known python already would have joined just for that

slender iron
#

@marble hornet we have an issue to implement it

marble hornet
#

?

#

@slender iron may i ask

manic glacierBOT
slender iron
orchid crag
#

Hi all! Where can I find the latest #circuitpython-dev for ItsyBitsy M4 Express? Also cant seem to find the schematic/pinouts anywhere. Anyone knows where to find them?

slender iron
orchid crag
#

Great! Thanks @slender iron I'll test it out. Also would you happen to know about the pinout?

slender iron
tulip sleet
#

@slender iron I'm out for a couple of hours around 1:50 ET or so.

slender iron
#

kk, are you working on sdcards?

tulip sleet
#

yeah, just started

slender iron
#

great! good job on the pdmin fix too! reviewing it now

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will look at the esp stack issue today

manic glacierBOT
orchid crag
#

Thanks @slender iron and @tulip sleet for the pinouts!

manic glacierBOT
#
notro
[adafruit/circuitpython] New comment on issue #876: samd21: time\.monotonic\(\) slows down under pressure

I'm still getting the same result.

Here's a stripped down version of my example:

code.py:

import time

lt1 = time.localtime()
lt2 = lt1
m1 = time.monotonic()
while True:
    i = 0
    while lt1.tm_sec == lt2.tm_sec:
        lt2 = time.localtime()
        i += 1
        #time.sleep(0.1)
    m2 = time.monotonic()
    print("time: %s monotonic:%.6f iterations:%d" % ( str(tuple(lt2)[:6]), m2 - m1, i ))
    lt1 = lt2
    m1 = m2

Result with no sleep:

t...
manic glacierBOT
#
tannewt
[adafruit/circuitpython] New comment on issue #542: Recursion error on ESP8266

This is an issue in 2.3.1 as well.

The ESP8266 memory map is very complicated and the stack space is shared with the underlying RTOS that handles the WiFi side of things. So, I don't think we have any options here. If we increase the limit on stack size we risk starving the RTOS of stack space. We could dive into micropython's stack allocations but that's complicated.

So, I'm closing this. Please use a different board for SD card support.

Background post about ESP8266 memory is here:...

sand salmon
stuck elbow
#

should the uf2 bootloader work with the Arduino ide?

#

do I need to adjust something for a custom board name?

slender iron
#

yeah it should. I don't know if the board name matter

marble hornet
#

First PCB ever and m4 board. Time to get started ! Hug reports: deshipu. Jerryn. Siddacious danhalbert all CP crew.

๐Ÿ“Ž image.jpg
stuck elbow
#

it doesn't appear in the ports list, so I suppose it does

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@marble hornet nice!

sand salmon
#

if only there was app for neopixels as im really a noob at programming , but love leds

marble hornet
stuck elbow
#

@marble hornet that right angle in the traces at bottom left triggers me...

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does it work?

marble hornet
#

@stuck elbow I wasn't sure if the flash chip would be bringing over those traces. About to test

slender iron
#

is that usb-c connecter spot?

marble hornet
#

Yes

#

But I forgot it in the digikey list. SUPER FACE PALM @slender iron

slender iron
#

๐Ÿ˜„ next order ๐Ÿ˜ƒ

marble hornet
#

Yep. Cough. Or now

#

@stuck elbow it should be able to run the metro m4 firmware. I just also broke out the others. An updated version is available on github. About to power up

stuck elbow
#

fingers crossed

marble hornet
#

Thanks

#

I'M READING 3.3 VOLTS!

stuck elbow
#

omg

#

do you get 1.2V on the vddcore?

marble hornet
#

Good idea. Checking

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@stuck elbow 1.195 !

stuck elbow
#

close enough

marble hornet
#

I'm using a 4.7uf cap. I could change

stuck elbow
#

the application note recommends one 4.7ยต and one smaller

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to filter the smaller ripples

marble hornet
#

suggested Val for small ?

stuck elbow
#

I can't remember

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100nF?

marble hornet
#

Working ....

#

@stuck elbow 1.202

#

Woo

slender iron
#

I had issues with that once the clock was turned up to 120mhz

marble hornet
#

With what ?

stuck elbow
#

fortunately smd capacitors can be easily stacked on the same footprint ;)

slender iron
#

with not having enough capacitance on the core vdd

#

you should be ok though

#

I only had 100nf on it at all

stuck elbow
#

ouch

manic glacierBOT
stuck elbow
#

I use 1ยตF on the samd21, the samd51 recommends 4.7+100

slender iron
#

as you say, it was easy to stack ๐Ÿ˜ƒ

#

yeah, I think an older version of the datasheet had 10, 1, 0.1 so thats what I put on

#

(all uF)

marble hornet
#

True

#

I will add it to the things to be fixed section on the back of the board

stuck elbow
#

now I really want to make a samd51 board

slender iron
#

so I can hook to signals more easily

manic glacierBOT
#
dhalbert
[adafruit/circuitpython] New comment on issue #466: SD Card unmount or remount fails on Adalogger M0

Finally getting around to this -- sorry for the delay!

I did some testing: the code below now works without an error on CircuitPython 3.0. Something has been fixed since this issue was filed.

sdcard = adafruit_sdcard.SDCard(spi, cs)
vfs = storage.VfsFat(sdcard)
storage.mount(vfs, '/sd')
input("remove card and press enter:")   # card is removed
storage.umount(vfs)    # no longer does OSError 22

So if you are still seeing a problem, let us know. I'll close this for now. Also,...

marble hornet
#

Okay. So I'm going to solder on a replacement port ( accounted for in board design, wow is USB c tiny). Could I then ask for some firmware expiring help? I'm getting a weird error

slender iron
#

yup, no need to ask to ask. just ask away

prime flower
#

USB C? NICE!

manic glacierBOT
#
nickzoic
[adafruit/circuitpython] New comment on pull request #926: Implement pulseio\.PulseIn and PulseOut for ESP8266 \#716

... and the esppwm.c implementation doesn't support GPIO16 either (only pins 0, 2, 4, 5, 12, 13, 14, 15), so you can't get a PWM object for it and thus can't construct a PulseOut object either. There probably should be an explicit check for SPECIAL_CASE in common_hal_pulseio_pulseout_construct though, I'll add that in.

@tannewt and I discussed adding the ability to construct PulseOut around a DigitalInOut instead, which would be useful for external modulation and could be made to work on ...