Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color an
LED - RGB Clear Common Cathode - Melopero Electronics
Clear Leds Australia Little Bird Australia
RGB 5 mm Clear Common Anode LED
5mm RGB LED - Common Cathode (Transparent) - BC Robotics
SparkFun-Eagle-Libraries/SparkFun-LED.lbr at master · JoelEB/SparkFun-Eagle-Libraries · GitHub
5mm RGB LED - Common Cathode (Transparent) - BC Robotics
COM-00105 SparkFun
Experiment Guide for the SparkFun Tinker Kit - SparkFun Learn
Open-source experimental setup for investigating the actuation behavior of active textiles - ScienceDirect