This project is a great example. [Scott Daniels] takes a look at the other voltage measurement options available to AVR chips used by Arduino.

Little Bird Electronics posted an article about using an analog voltage reference with Arduino. This is a tool available when using an analog-to-digital converter. By setting up either an internal … ...

Quark is an electrical measurement probe and debugging tool powered by open-source software written in the Arduino environment. Currently featured on the crowdfunding site Crowd Supply, the Quark ...