Pin Assignments on RGB LED?

[deejayspinz]

I've just been playing with the same type of LED. As is been said already - they are common-annode, so think in reverse. 1 pin goes to +5v the other 3 go to digital pins on the arduino. Use the example I have below to see it in action. Note the Pin assignments are to PWM pins.

Code: Select all

// Select which PWM-capable pins are to be used.
int redPin = 9;
int greenPin = 3;
int bluePin = 10;


// Set up our outputs, and give full high values so the
// LEDs start off.  Then fade in the blue LED.
//
void setup()
{
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);

  analogWrite(redPin, 255);
  analogWrite(greenPin, 255);
  analogWrite(bluePin, 255);


 
}

// The cycle of ramps will go through all of the primary
// and secondary hues in the RGB rainbow, and repeat.
//
void loop()
{

   analogWrite(redPin, 225);
   //digitalWrite(redPin, LOW);
 
 
/*
  //green
  analogWrite(redPin, 255);
  analogWrite(greenPin, 0);
  analogWrite(bluePin, 255);
 
  delay(2000);
 
  //yellow
  analogWrite(redPin, 0);
  analogWrite(greenPin, 190);
  analogWrite(bluePin, 255);

// delay(2000);

  //orange
//  analogWrite(redPin, 115);
//  analogWrite(greenPin, 245);
//  analogWrite(bluePin, 255);

delay(2000);

  analogWrite(redPin, 0);
  analogWrite(greenPin, 255);
  analogWrite(bluePin, 255);
*/
delay(2000);
}