If you ever wondered about building your own multimeter, YouTuber Electronoobs shows us just how to do so with an Arduino Nano.

Aside from the Nano, he’s using a 128×64 OLED screen to display stats and battery level, and a 16-bit ADC for precise measurements. Power is provided by a small onboard LiPo battery, and he’s even included a charging module to help keep things topped off. Everything is housed inside a custom 3D-printed case. 

The device doesn’t just measure voltage, resistance, and current, but is capable of reading capacitance and inductance as well—measurements that you wouldn’t necessarily expect on a commercial meter. If you’d like to create your own, the schematic and code are available on Electronoobs’ site.