fritzing Two color LED module User guide

Two color LED module

Operating Voltage

2.0v ~ 2.5v

Using Current

10mA

Diameter

3mm / 5mm

Package Type

Diffusion

Color

Red + Green

Beam Angle

150

Wavelength

571nm + 644nm

Luminosity Intensity

20-40; 40-80

Module

Breadboard

Arduino

G

330Ω resistor

Pin 10

R

330Ω resistor

Pin 11

Y GND

Two color LED module for Arduino, emits red and green light. You can adjust

the amount of each color using PWM.

This module consist of a common cathode 3mm or 5mm red/green LED.

Since operating voltage is 2.0v ~2.5V, you'll need to use limiting resistors to

prevent burnout when connecting to the Arduino.

Pinout and Connection to Arduino

We'll use a couple of 330Ω resistors to limit the current from the Arduino and prevent burning the

LED.

Arduino Example Sketch

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);
}
}