RED_LED=10;
GREEN_LED=11;
BLUE_LED=12;
void setup() {

  // put your setup code here, to run once:
pinMode(RED_LED, OUTPUT);
pinMode(GREEN_LED, OUTPUT);
pinMode(BLUE_LED, OUTPUT);
void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(RED_LED, HIGH);
delay(2000);
digitalWrite(RED_LED, LOW);
delay(2000);
digitalWrite(GREEN_LED, HIGH);
delay(2000);
digitalWrite(GREEN_LED, LOW);
delay(2000);
digitalWrite(BLUE_LED, HIGH);
delay(2000);
digitalWrite(BLUE_LED,LOW);
delay(2000);

}