How to Use an RGB LED

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RGB CODE

int ledPinR = 11;   // the number of the LED R pin

int ledPinG = 10;   // the number of the LED G pin

int ledPinB = 9;    // the number of the LED B pin

void setup() {

  // initialize the LED pin as an output:

  pinMode(ledPinR, OUTPUT);

  pinMode(ledPinG, OUTPUT);

  pinMode(ledPinB, OUTPUT);

}

void loop() {

  int adcValue;     // Define a variable to save the ADC value

  // Convert analog of A0 port into digital, and work as PWM duty cycle of ledPinR port

  adcValue = analogRead(A0);

  analogWrite(ledPinR, map(adcValue, 0, 1023, 0, 255));

  // Convert analog of A1 port into digital, and work as PWM duty cycle of ledPinG port

  adcValue = analogRead(A1);

  analogWrite(ledPinG, map(adcValue, 0, 1023, 0, 255));

  // Convert analog of A2 port into digital, and work as PWM duty cycle of ledPinB port

  adcValue = analogRead(A2);

  analogWrite(ledPinB, map(adcValue, 0, 1023, 0, 255));

}