SunFounder 3in1 Kit
4.2.2 2.2 Colorful Light
As we know, light can be superimposed. For example, mix blue light and green light give cyan light, red light and
green light give yellow light. This is called “The additive method of color mixing”.
• Additive color - Wikipedia
Based on this method, we can use the three primary colors to mix the visible light of any color according to different
specific gravity. For example, orange can be produced by more red and less green.
In this chapter, we will use RGB LED to explore the mystery of additive color mixing!
RGB LED is equivalent to encapsulating Red LED, Green LED, Blue LED under one lamp cap, and the three LEDs
share one cathode pin. Since the electric signal is provided for each anode pin, the light of the corresponding color can
be displayed. By changing the electrical signal intensity of each anode, it can be made to produce various colors.
Required Components
In this project, we need the following components.
It’s definitely convenient to buy a whole kit, here’s the link:
Name ITEMS IN THIS KIT LINK
3 in 1 Starter Kit 380+
You can also buy them separately from the links below.
COMPONENT INTRODUCTION PURCHASE LINK
Arduino Uno R4 Minima -
Breadboard
Jumper Wires
Resistor
RGB LED
Schematic
100 Chapter 4. Basic Projects
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