Robuta

https://forum.arduino.cc/t/measure-negative-voltage-with-interntal-adc-arduino-uno/1024499 Measure Negative voltage with interntal ADC arduino uno - Zero - Arduino Forum Aug 22, 2022 - Hi, I tried to measure voltage that changes between -4v to 4v with a sensitivity of 100mv ( could be 80 values) the problem is that the ADC is Unipolar and I... arduino unomeasurenegativevoltageadc