How to read negative voltage on Arduino

The analog to digital port on a microcontroller can usually only handle 0 to 5 volts. What if you want to measure higher? Or negative?

A two or three-way resistor-divider-network could be your solution for that.

https://krakkus.com/2022/11/25/with-a-resistor-divivder-you-can-analogread-anything/

Видео How to read negative voltage on Arduino канала krakkus