[Arduino Super Introduction #13] Lighting an External LED | Let's Build Our First Circuit on a Breadboard

Last time, we learned about the anode and cathode of an LED, how to distinguish their orientation, and the role of a resistor in limiting current.This time, we will combine an Arduino, a breadboard, ...
Geeky Gadgets

Arduino 13 Note Midi Laser Harp (video)

Jon Bumstead has created an awesome Arduino powered 13 note midi harp after receiving funding from the optics group Spectra at Washington University in Saint Louis. Watch the video below to learn more ...