Using an Arduino Nano board together with a 2.2 inch UART HMI display the batteries can provide up to 60w of power output.

Arduino enthusiasts and makers searching for a new project to keep them busy this weekend may be interested in a new DIY Arduino Nano multimeter created by YouTuber Electronoobs. Using a small ...

It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered projects.