I am using adc pins on new impc001 breakout board and seeing some erratic readings on imp central. I am using short unshielded wires (100mm) to external low impedance sources.
The adc counts can vary by a few thousand counts each reading at 30 secs intervals,
This sounds very high and just wondering do I need some buffering and filtering of adc inputs to improve the readings.
Adding a capacitor to the input (eg 100nF) is certainly worthwhile as the ADCs are muxed and so you get charge injection as the input is selected. Try that?