4A Graphical User Interface for a Multicolor LED

In this project, we’ll introduce you to the multicolor RGB LED, and you’ll learn how to build a simple graphical user interface in Tkinter to control your electronics.

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PARTS REQUIRED

Raspberry Pi

Breadboard

Common cathode RGB LED

Three 330 Ω resistors

Jumper wires

INTRODUCING RGB LEDS

RGB LEDs are three LEDs in one—red, green, and blue—that can produce almost any color by combining those three colors.

With an RGB LED you can, of course, produce red, green, and blue light, and by configuring the intensity of each LED, you can produce other colors as well. For example, to produce purely blue light, ...

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