Starter Guide

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Lesson 12 RGB LED
Introduction
In this lesson, let’s learn about the RGB LED.
What is RGB?
The RGB LED consists of three LEDs. Each LED has a red, a green and a blue
light. The three-color LEDs can produce any color; it contains the red, green
and blue emitters, typically with a four-wire connection and a common wire
(anode or cathode). These LEDs can have a common anode or a common
cathode wire.
We used the common anode RGB LED in this experiment. Made it into a
module, from left to right we can see the common anode, R, G, B, where R,
G, B are connected respectively with three SMD resistors. The longest pin is
the common anode of the three LEDs.
R
Red channel
G
Green channel
B
Blue channel
+
3.3V