RaspTank issues with rpi_ws281x.py

1615328063

Dears,
I've bought RaspTank in February and connected it to Raspberry Pi 4B. After running webSerwer.py I'm geting the following error:

1. File "/usr/local/lib/python3.7/dist-packages/rpi_ws281x/rpi_ws281x.py", line 131, in begin
   
2.     raise RuntimeError('ws2811_init failed with code {0} ({1})'.format(resp, str_resp))
   
3. RuntimeError: ws2811_init failed with code -3 (Hardware revision is not supported)
   
4. Segmentation fault

Copy the Code

It is called from robotLight.py which is called from both LED.py or OLED.py...
When I comment the part of code that calls the robotLight.py part, the Web App has "connect error" on a screen and the Robot is not reacting to the commands from buttons on the screen.

I tried to solve the issue using https://www.adeept.com/learn/tutorial-352.html but "scons" or "sudo python3 setup.py build" throws an error so I cannot add the library on my own..

Please help me - how to solve the issue with rpi_ws281x? I assume you can provide two options:
1) tell how to fix existing RaspTank code
2) Tell how to reinstall the library using "scons" and the rest of tutorial


Many thanks!
Piotr

1694050133

The RaspTank issue with rpi_ws281x.py is a frequent occurrence and there are many methods to fix it. retro bowl

1713170675

Ensure that the version of the rpi_ws281x library you're using is compatible with your Raspberry Pi 4B. Some versions may not support newer hardware revisions. wordle