My Arduino learns what a healthy switch looks like, then flags rising contact resistance before it fails. Proof of concept for relay wear. Find this and other hardware projects on Hackster.io.

Here you can find all of Electronics For You's beginner-level electronics projects—perfect for those starting their journey in electronics with simple, hands-on experiments and easy-to-follow guides.

A world clock for the terminal, with a day and night map and a 24-hour timeline to find a time that works across time zones.