My daughter likes buttons. She's learning letters. I was bored over winter break and had these parts laying around... so I built her a "Button Box" based around an Arduino. Open source, hackable ...

Instructables user talk2bruce created the Arduino Internet Gizmo, a card reader that takes you to your favorite websites with a touch of an RFID tag.

Instructables user gramsky shows how to create a system that tracks your movement with an Arduino. ... It uses an Arduino Uno, Arduino WiFi shield, GPS, thermometer, ...

Instructables user MakersBox did just that, with a tiny, modular Arduino-compatible board that can fit inside a Tic Tac box. The build uses a handful of parts, including an ATtiny capable of ...