This project demonstrates how to control a common cathode Tricolor (RGB) LED using an Arduino. The LED is programmed to cycle through its primary colors—red, green, and blue. A push button is then ...

When you read “Arduino wristwatch”, you fall into the trap of envisioning an Arduino UNO clumsily strapped to someone’s wrist. [Marijo Blažević’s] creation is much more polished than that. A round ...