I have a Pi Zero to which I soldered some GPIO header pins.
I bought the Scroll pHat and soldered to GPIO pin connector block.
To test it out I am running the example python program “test-all.py”.
The LED’s light up and then go off as expected from reading the code.
However I get a lot of “IO error” messages.
Is this to be expected or is it a sign of errors in my soldering?