I am using an ADS1256 ADC chip (in the form of a Waveshare High-Precision AD/DA Board).
I am using a 5V reference voltage, but I can't seem to read full scale.
- 0V reads out -344 bits (~0V)
- 3.3V reads out 5559000 bits (~3.3V)
- 5V reads out 6698000 bits (~4V)
Can anybody advise on how I can read full scale? I'm using PiPyADC.