Learn how to create a music-activated LED display with a simple, low-cost circuit. This code-free project uses audio filters to sync LEDs with sound frequencies.

Rain sensors are very trivial, consisting of a pair of electrodes that send a signal when rain is detected.

How to add LED headlights to a longboard.

This guide covers how to make a sound activated switch that can be opened and closed with a double clap.

In this project, you’ll learn how you can use any button on a standard infrared TV remote control to activate functions on an Arduino.