A free program for Android, by adamapp.

You can use the best Arduino projects as a reference to learn how to make your own electronic devices. This app includes circuit diagrams, source codes, and more, so you can learn how to make your own device without having to download an app or spend hours reading a website.

Some of the best Arduino projects include:

A compass, which shows the current direction.

A sensor for detecting light, sound, or pressure.

A sensor for detecting smoke, fire, or carbon monoxide.

A motor that turns a light bulb ON or OFF.

A motor that moves a slider.

A motor for a loud speaker.

A motor that drives a fan.

A LED light.

A way to connect two devices through a Wi-Fi network.