KY-011 Two color LED module

The KY-011 Two Color LED module emits red and green light. You can adjust the intensity of each color using PWM.

Compatible with popular electronics platforms like Arduino, Raspberry Pi, ESP32 and more. This module is similar to the KY-029.

KY-011 Specifications

This module consist of a common cathode 3mm red/green LED, a 0Ω resistor, and 3 male header pins. Since the operating voltage is between 2.0v and 2.5v, you’ll have to use limiting resistors to prevent burnout when connecting to the Arduino.

Connection Diagram

KY-011 Arduino Code

The following Arduino sketch will gradually alternate between red and green color.

int redpin = 11; // pin for red signal
int greenpin = 10; // pin for green signal
int val;
void setup() {
	pinMode(redpin, OUTPUT);
	pinMode(greenpin, OUTPUT);
}
void loop() {
	for(val = 255; val > 0; val--) { 
		analogWrite(redpin, val); //dim red
		analogWrite(greenpin, 255 - val); // brighten green
		delay(15);
	}
	for(val = 0; val < 255; val++) { 
		analogWrite(redpin, val); //brighten red
		analogWrite(greenpin, 255 - val); //dim green
		delay(15);
	}
}

Downloads

• Fritzing Part: KY-011 Two color LED module.
• Fritzing Official Site.

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