Morse code can be sent using low power, equipment built from simple materials or even using mirrors or flashlights. Finally, Morse code is a very simple way to do covert communications.

The Magic Morse algorithm is copyrighted, but he has released the Arduino code as open source in an effort to get people using Morse code once again — it is pretty awesome. So how does it work?

An Arduino is a popular open-source single-board microcontroller. Learn how to program one and let the possibilities take shape.