Application of your LUT approach

[Bwanna]

Hi, I've run the program and have successfully gotten the two tables: float ADC_LUT[4096], int ADC_LUT[4096].

My project is measuring multiple input voltages for a number of sensors on pins: 39,36,35,34,33,32. Question: Do I need to create a LUT for each of these pins? Thanks,

[MacLeod-D]

I don't think so. Not for the channels, but for ADC.

[kevinjwalters]

Slightly random question, have you (or @e-tinkers) looked at the ESP32-S2? We've been discussing its ADC over at https://github.com/adafruit/circuitpython/issues/3785 and Adafruit Forums: Feather ADC comparison including 2.6V limited ESP32-S2. It's -11dB may not be working as advertised.

It sounds like the ESP32 can do full range 0.0-3.3V?