Issue with Enviro+ with RPi Zero: Display and particles not working

dantwe · November 28, 2023, 11:46pm

I didn’t knowingly do anything different! It seems inconceivable that running lcd.py could give you the same error, the code in the st7735 library at that point is completely different

github.com

pimoroni/st7735-python/blob/c0733d678afaaff18726b1e8ed9de58fe33c427b/library/ST7735/init.py#L175


      
          # Default top offset to center display
          if offset_top is None:
              offset_top = (ST7735_ROWS - height) // 2
          
          self._offset_top = offset_top
          
          # Set DC as output.
          GPIO.setup(dc, GPIO.OUT)
          
          # Setup backlight as output (if provided).
          self._backlight = backlight
          if backlight is not None:
              GPIO.setup(backlight, GPIO.OUT)
              GPIO.output(backlight, GPIO.LOW)
              time.sleep(0.1)
              GPIO.output(backlight, GPIO.HIGH)
          
          # Setup reset as output (if provided).
          if rst is not None:
              GPIO.setup(rst, GPIO.OUT)

I can only guess that somehow python isn’t picking up the old/overridden dependency. At the risk of sounding daft, have you tried turning it off an on again? fwiw I’m running…

$ python --version
Python 3.9.2

on Legacy Raspberry OS and none of the fancy python venv stuff that I don’t understand anything about.

(It probably doesn’t help in any practical way but fwiw it looks like someone else has also managed to get things working using the pinned versions: PIMORONI ENVIRO indoor monitor not working)

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Issue with Enviro+ with RPi Zero: Display and particles not working

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