Project 9 RGB LED

1. Introduction: Tricolor principle to display various colors;PWM controlling ports to display full color;Can be driven directly by Arduino PWM interfaces.

2. Hardware Required:

• Arduino controller × 1

• USB cable × 1

• Full-color LED module × 1

3. Connection for REV4

4. Connection for 2560 R3

5. Sample Code

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(11, val);
       analogWrite(10, 255-val);
       analogWrite(9, 128-val);
       delay(1); 
  	}
	for(val=0; val<255; val++)
 	{
       analogWrite(11, val);
       analogWrite(10, 255-val);
       analogWrite(9, 128-val);
       delay(1); 
  	}
 	Serial.println(val, DEC);
}

Result: Directly copy the above code into arduino IDE, and click upload,wait for a few seconds, you can see a full-color LED.