MicroPython Forum

I don't have this device myself, but a Thonny user also reported problems with it and the error message was somewhat similar (https://github.com/thonny/thonny/issues/1702). Perhaps LEGO's MicroPython has some quirks. I'd be happy if you tried connecting to your hub via Thonny (https://thonny.org): *...

It looks like your Thonny is in "Heap mode", which is a mode for demonstrating references.

You can turn it off by unselecting "Heap" from the "View" menu.

It looks like Thonny's bug. Please report it at https://github.com/thonny/thonny/issues/new and let's continue our discussion there. Also, please tell your OS, whether you are able to run some other programs and whether you can evaluate expressions in the Shell.

@garnold, which distro and which version are you using? Please also tell your screen resolution You could try different font scaling mode at "Tools => Options => General". Please let me know, whether you had success or not. I've seen such reports before (https://github.com/thonny/thonny/issues/1113)...

From the screenshot I see that you have older Thonny, which doesn't know about Pico. The "MicroPython (generic)" back-end together with the port it's showing, should work, though. If you want newer Thonny, then you can `apt remove thonny` and install a Thonny+Python bundle with following command: ba...

I have also met problems with Pico threads (https://github.com/micropython/micropython/issues/6899), so I suspect the threading support isn't very robust yet. When you are testing different parameters, then make sure you hard reset your device between tests. I've been scratching my head a lot by alt...

ssfel wrote: ↑

Mon Mar 08, 2021 10:25 am

At the moment I'm doing;
Save As --> Raspberry Pi Pico --> "main.py", save

This should do.

Does it start running again when you reconnect USB? Can it be powering issue?

@garnold, do I understand correctly that `/dev/ttyACM0` is present but Thonny simply doesn't see it? Please select the default back-end in Thonny (button at the lower-right corner) and try following commands on the Python 3 REPL: Python 3.7.9 (bundled) >>> import serial.tools.list_ports as lp >>> lp...

A regression was introduced in Thonny 3.3.4 (object evaluation in the REPL gave too short capped repr-s). A fix is now published in 3.3.5: https://github.com/thonny/thonny/releases/tag/v3.3.5

If you downloaded a sd-card image from Lego site, then you should start with https://pybricks.github.io/ev3-micropython/index.html If you downloaded the image from Ev3Dev site, then you probably have a bit different MicroPython API. At the moment I wasn't able to find the documentation for this vari...