KY-009 RGB FULL COLOR LED SMD MODULE

A LED-module which provides a red, blue and green LED. These are connected with a common cathode. A resistor is necessary for different voltages.

Vf [Red]= 1,8V

Vf [Green,Blue]= 2,8V

If= 20mA

Pre-resistor:

Rf (3,3V) [Green]= 100Ω

Rf (3,3V) [Red]= 180Ω

Rf (3,3V) [Blue]= 100Ω

Example:

The following Arduino sketch will cycle through various colors by changing the PWM value on each of the three primary colors.

int redpin = 11; //select the pin for the red LED
int bluepin =10; // select the pin for the  blue LED
int greenpin = 9;// select the pin for the green LED

int val;

void setup() {
  pinMode(redpin, OUTPUT);
  pinMode(bluepin, OUTPUT);
  pinMode(greenpin, OUTPUT);
  Serial.begin(9600);
}

void loop() 
{
  for(val = 255; val > 0; val--)
  {
    analogWrite(redpin, val);  //set PWM value for red
    analogWrite(bluepin, 255 - val); //set PWM value for blue
    analogWrite(greenpin, 128 - val); //set PWM value for green
    Serial.println(val); //print current value 
    delay(1); 
  }
  for(val = 0; val < 255; val++)
  {
    analogWrite(redpin, val);
    analogWrite(bluepin, 255 - val);
    analogWrite(greenpin, 128 - val);
    Serial.println(val);
    delay(1); 
  }
}