I am using the Waveshare High-Precision AD/DA Board with my Pi to read an analogue 0-5v signal.
I am using a 5V reference voltage, but I can't seem to read full scale.
- Applying 0V reads out -344 bits (~0V)
- Applying 3.3V reads out 5559000 bits (~3.3V)
- Applying 5V reads out 6698000 bits (~4V)
Can anybody advise on how I can read full scale? I'm using PiPyADC.