SunFounder 3in1 Kit
An RGB LED has 4 pins: the longest one is GND; the others are Red, Green and Blue. Touch its plastic shell and you
will find a cut. The pin closest to the cut is the first pin, marked as Red, then GND, Green and Blue in turn.
Example
• 2.2 Colorful Light (Basic Project)
• 5.2 Threshold (Basic Project)
20 Chapter 1. Components List and Introduction