Connect Bi-Color LED module to Arduino

Light emitting diodes, also known as two-color LEDs, usually emit two colors of light, red and green.

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Description

Light emitting diodes, also known as two-color LEDs, usually emit two colors of light, red and green. It's a semiconductor diode that illuminates when a voltage is applied to it. You may control the intensity of each color with a PWM.

This module contains three pins, as seen in the image above: GND, RED, and Green. The cathode of the LEDs is fixed and situated in a single common pin, making this component a common cathode module.

Details

Double Colour LED Working Principle

The two terminals or pins on a double-color LED are linked back to back: Anode to Cathode. When a positive voltage is applied directly to a terminal, such as the green anode, it emits light, and the same is true for the Red anode.

Because of the two terminal design, only one LED may get positive voltage at a time, resulting in a limited range of colors.

Let's get started setting up this type of LED on the Arduino Uno now that we've learned how it works.

What you need