This project forked from willingc/circuitpython_kernel
Jupyter kernel to interact with CircuitPython board over USB
Home Page: https://circuitpython-kernel.readthedocs.io/en/latest/
License: Other
The notebook connects to the CircuitPython kernel, but hangs (solid dot to the right of of the kernel name 'CircuitPython' in the top right corner of the notebook) whenever code is executed.
Connected a new notebook (v6.2.0, all latest jupyter packages from PyPI) to circuitpython_kernel, using a Feather RP2040 (adafruit-circuitpython-adafruit_feather_rp2040-en_US-6.2.0-beta.3.uf2). The new notebook has neopixel_simpletest.py from https://circuitpython.readthedocs.io/projects/neopixel/en/latest/examples.html pasted into it.
Note that CircuitPython kernel was installed with pip install . as the instructions to use python3 setup.py install failed. python3 -m circuitpython_kernel.install worked with "Completed kernel installation."
The test runs fine when copying neopixel_simpletest.py to code.py on the CIRCUITPY drive.
jupyter-notebook output:
[I 14:42:12.916 NotebookApp] Kernel started: 5a2c643b-321c-4f8a-8ecd-97030a8b9f69, name: circuitpython
DEBUG:asyncio:Using selector: EpollSelector
DEBUG:asyncio:Using selector: EpollSelector
DEBUG:circuitpython_kernel.kernel:circuitpython_kernel version 0.3.0.dev
[W 14:42:15.231 NotebookApp] 404 GET /nbextensions/widgets/notebook/js/extension.js?v=20210313144140 (192.168.0.5) 6.240000ms referer=http://192.168.0.11:8888/notebooks/test.ipynb
DEBUG:circuitpython_kernel.board:/dev/ttyACM1
DEBUG:circuitpython_kernel.board:CircuitPython Board Found at: /dev/ttyACM1
DEBUG:circuitpython_kernel.board:Connected? False
DEBUG:circuitpython_kernel.board:connect: open /dev/ttyACM1
DEBUG:circuitpython_kernel.board:serial already open
DEBUG:circuitpython_kernel.board:* enter raw repl ...
Adafruit CircuitPython 6.0.1 on 2020-12-28; Adafruit ItsyBitsy M4 Express with samd51g19When following the Adafruit Jupyter Circuit Python Guide, Jupyter fails to connect to the kernel/board with the error Port must be configured before it can be used displayed in the terminal
$ python3 setup.py install
$ cd circuitpython_kernel
$ python3 -m circuitpython_kernel.install
A connection to the notebook server could not be established. The notebook will continue trying to reconnect. Check your network connection or notebook server configuration.[I 11:09:50.381 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports
Traceback (most recent call last):
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/circuitpython_kernel/__main__.py", line 4, in <module>
IPKernelApp.launch_instance(kernel_class=CircuitPyKernel)
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/traitlets/config/application.py", line 844, in launch_instance
app.initialize(argv)
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/traitlets/config/application.py", line 87, in inner
return method(app, *args, **kwargs)
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/ipykernel/kernelapp.py", line 582, in initialize
self.init_kernel()
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/ipykernel/kernelapp.py", line 444, in init_kernel
kernel = kernel_factory(parent=self, session=self.session,
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/traitlets/config/configurable.py", line 537, in instance
inst = cls(*args, **kwargs)
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/circuitpython_kernel/kernel.py", line 37, in __init__
self.serial = connect()
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/circuitpython_kernel/board.py", line 58, in connect
s.open()
File "/Users/aaronciuffo/.pyenv/versions/3.8.6/Python.framework/Versions/3.8/lib/python3.8/site-packages/serial/serialposix.py", line 316, in open
raise SerialException("Port must be configured before it can be used.")
serial.serialutil.SerialException: Port must be configured before it can be used.
... Repeats 5 times ...
[W 11:15:48.289 NotebookApp] KernelRestarter: restart failed
[W 11:15:48.289 NotebookApp] Kernel 3c7b0cdf-538d-481c-b159-7fa42722b61b died, removing from map.
Hi
We're currently evaluating the potential of using something like Circuit Playground Express as a home experiment kit and I've been looking at what support there may be around for using Jupyter notebooks to work with them (my early notes here: https://ouseful-testing.github.io/circuit-playground-express/
The magics look like they could be interesting, but they still seem to be early days?
(The following is intended to be constructive rather than overly critical.)
One way I imagined using magics was to eg:
BUT:
print() it. Nor is the IPython display() function, which would pick up a __repr__, seem to be implemented.Hi folks,
I wanted to give the CircuitPython kernel a try with my ESP32 Feather V2 board, but I see that it's not in the list of supported devices, and none of the ESP32 boards actually, even the newer ESP32-S3 for instance which does have native USB (unlike my ESP32 Feather V2..).
Is there a plan to make the CircuitPython kernel compatible with the ESP32 boards? It would be cool to program them from JupyterLab.
I tried the examples in https://github.com/adafruit/circuitpython_jupyter_kernel/tree/master/examples , but that didn't work, I get the error No connection to CiruitPython VM: found no board. The jupyter log in the terminal shows the correct serial port (/dev/ttyACM0) though.
Getting the following timeout on starting the notebook:
[I 08:51:21.622 NotebookApp] Kernel started: b851b856-352e-4dc3-8265-d57d19b68915
DEBUG:asyncio:Using selector: KqueueSelector
DEBUG:asyncio:Using selector: KqueueSelector
DEBUG:circuitpython_kernel.board:/dev/cu.Bluetooth-Incoming-Port
DEBUG:circuitpython_kernel.board:/dev/cu.RobinsiPhone6-Wirelessi
DEBUG:circuitpython_kernel.board:/dev/cu.Bluedio-BluetoothSerial
DEBUG:circuitpython_kernel.board:/dev/cu.usbmodem14141
DEBUG:circuitpython_kernel.board:CircuitPython Board Found at:
DEBUG:circuitpython_kernel.board:/dev/cu.usbmodem14141
DEBUG:circuitpython_kernel.board:* entering raw repl...
[W 08:51:31.680 NotebookApp] Timeout waiting for kernel_info reply from b851b856-352e-4dc3-8265-d57d19b68915
Note that I am NOT getting this issue with https://github.com/goatchurchprime/jupyter_micropython_kernel
I am trying to use a Feather M4 Express with circuitpython (version 6.1.0) and Jupyter. I am intermittently having an issue where the kernel fails to automatically connect to the correct CDC port (circuitpython is presenting on two ports in my OS).
Here are my serial ports:
❯ pio device list
/dev/cu.Bluetooth-Incoming-Port
-------------------------------
Hardware ID: n/a
Description: n/a
/dev/cu.usbmodem14303
---------------------
Hardware ID: USB VID:PID=239A:8026 SER=4CBE1F385364933502020233339110FF LOCATION=20-3
Description: Feather M4 Express - CircuitPython CDC2 data
/dev/cu.usbmodem14301
---------------------
Hardware ID: USB VID:PID=239A:8026 SER=4CBE1F385364933502020233339110FF LOCATION=20-3
Description: Feather M4 Express - CircuitPython CDC2 data
Here is an instance where the kernel automatically attempted to connect to the usbmodem140303 port. Notebook commands run in this state hang and never complete. It seems like the kernel always connects to whichever port for the board is listed first. In this error case, that is usbmodem14303. If the other port, usbmodem14301 is listed first, then the jupyter kernel will attempt to connect to that one. In that state things are functional.
circuitpy ❯ jupyter notebook
[I 15:34:47.261 NotebookApp] Serving notebooks from local directory: /Users/MYNAME/Desktop
[I 15:34:47.261 NotebookApp] Jupyter Notebook 6.2.0 is running at:
[I 15:34:47.261 NotebookApp] http://localhost:8888/? token=28f9c073a686bd4938db0b8574b4158b08d286b24f46e205
[I 15:34:47.261 NotebookApp] or http://127.0.0.1:8888/? token=28f9c073a686bd4938db0b8574b4158b08d286b24f46e205
[I 15:34:47.261 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 15:34:47.264 NotebookApp]
To access the notebook, open this file in a browser:
file:///Users/MYNAME/Library/Jupyter/runtime/nbserver-26094-open.html
Or copy and paste one of these URLs:
http://localhost:8888/?token=28f9c073a686bd4938db0b8574b4158b08d286b24f46e205
or http://127.0.0.1:8888/?token=28f9c073a686bd4938db0b8574b4158b08d286b24f46e205
[W 15:34:48.781 NotebookApp] 404 GET /apple-touch-icon-precomposed.png (::1) 8.050000ms referer=None
[W 15:34:48.785 NotebookApp] 404 GET /apple-touch-icon.png (::1) 1.250000ms referer=None
[I 15:34:54.107 NotebookApp] Creating new notebook in
[I 15:34:55.045 NotebookApp] Kernel started: 412927db-5709-4a7c-b62e-cf65d6c6e615, name: circuitpython
DEBUG:asyncio:Using selector: KqueueSelector
DEBUG:asyncio:Using selector: KqueueSelector
DEBUG:circuitpython_kernel.kernel:circuitpython_kernel version 0.3.0.dev
DEBUG:circuitpython_kernel.board:/dev/cu.Bluetooth-Incoming-Port
DEBUG:circuitpython_kernel.board:/dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.board:CircuitPython Board Found at: /dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.board:Connected? False
DEBUG:circuitpython_kernel.board:connect: open /dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.board:serial already open
DEBUG:circuitpython_kernel.board:* enter raw repl ...
[I 15:35:17.427 NotebookApp] Kernel interrupted: 412927db-5709-4a7c-b62e-cf65d6c6e615
DEBUG:circuitpython_kernel.kernel:no connection failed to enter raw repl with /dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.kernel:Error: 'No connection to CiruitPython VM: failed to enter raw repl with /dev/cu.usbmodem14303'
DEBUG:circuitpython_kernel.board:/dev/cu.Bluetooth-Incoming-Port
DEBUG:circuitpython_kernel.board:/dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.board:CircuitPython Board Found at: /dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.board:Connected? False
DEBUG:circuitpython_kernel.board:connect: open /dev/cu.usbmodem14303
DEBUG:circuitpython_kernel.board:serial already open
DEBUG:circuitpython_kernel.board:* enter raw repl ...
Im trying to use print() in Jupyterlab with CircuitPython Kernel
when i delete completely while True: it prints alright but when im in a loop it just doesnt work.
CircuitPython Kernel is not able to do this?
even the command line is not showing my prints im doing something wrong or this is not supported?
I can read print() in a while loop with MU
do i need to attach an external debugger?
Sorry about my english, is not my native language
`import digitalio
from board import *
import time
led = digitalio.DigitalInOut(D13)
led.direction = digitalio.Direction.OUTPUT
boton = digitalio.DigitalInOut(D0)
boton.switch_to_input(pull = digitalio.Pull.UP)
while True:
print(str(boton.value))
led.value = True
time.sleep(5)
led.value = False
time.sleep(5)
print("Reset")`
Hi
I was wondering if there are any recipes for running the kernel against a notebook server inside a Docker container on the same host as a Circuit Playground Express device?
On a Mac, I had a guess at:
docker run --privileged --device /dev/cu.usbmodem14101 -p 8866:8888 cctpy
where cctpy is a simple Docker image with a Jupyter notebook server and the Circuit Python kernel installed, but that doesn't seem to want to play:
No connection to CiruitPython VM: found no board
Checking /dev, there is no cu.usbmodem14101 mounted there.
Naively trying to mount the device as a volume didn't seem to help.
Trying to access devices from inside a docker container is new to me, so any ideas on how this might be made work (assuming it can) would be most welcome...
Let's make the contact Adafruit 👍
Let's get the benefit of f-strings and more closely reflect the Jupyter direction of Python support.
CircuitPython 4.0 drops support for the ESP8266. Support for the ESP8266 should be removed from this library as well.
Add support for product ID along with vendor ID: https://github.com/mu-editor/mu/blob/master/mu/modes/adafruit.py#L38
https://github.com/adafruit/circuitpython_kernel/blob/master/circuitpython_kernel/board.py#L14
https://github.com/adafruit/circuitpython_kernel/blob/master/README.rst < update to reflect this change
I am trying to get outputs from my board in a while True: loop. I can get outputs printed to the notebook outside the loop, but inside the loop I cannot.
Most of this code is copied from an example in the repo, but I did have to change it to use my ItsyBitsy M0's dotstar instead of a neopixel.
import time
import board
import adafruit_dotstar
dot = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.5)
def flash_pixels(flash_speed=0.5):
print('flashing R')
dot.fill((255, 0, 0))
dot.show()
time.sleep(flash_speed)
print('flashing G')
dot.fill((0, 255, 0))
dot.show()
time.sleep(flash_speed)
print('flashing B')
dot.fill((0, 0, 255))
dot.show()
time.sleep(flash_speed)
flash_pixels() # prints fine
while True:
flash_pixels() # no prints in terminal or notebook
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