Here is a fun idea that could be leveraged into several interesting projects. It uses an RGB LED and a CdS photocell to detect the color of any object. Here‘s another really cool version of the same project, where a ball changes color to match the surface you put it on.
Category Archives: Arduino
RGB Color Detection
Programming Arduino using Audio
This is a cool project which sets up your Arduino to accept programming via a mono headphone plug. This could be very useful for a simple interface to add new data to an existing project or possibly even do a complete reprogramming with no more than a headphone jack on a PC and some simple software.