void setup() {
pinMode(7,OUTPUT);
pinMode(6,OUTPUT);
pinMode(5,OUTPUT); 
}

void loop() {
digitalWrite(5,1);//R
delay(1000);
digitalWrite(5,0);
digitalWrite(7,1);//G
delay(1000);
digitalWrite(7,0);
digitalWrite(6,1);//B
delay(1000);
digitalWrite(5,1);//P
delay(1000);
digitalWrite(6,0);
digitalWrite(7,1);//Y
delay(1000);
digitalWrite(5,0);
digitalWrite(6,1);//M
delay(1000);
digitalWrite(5,1);//W
delay(1000);
digitalWrite(5,0);
digitalWrite(6,0);
digitalWrite(7,0);
delay(50);
}