int led1 = 11; int led2 = 9; int led3 = 10; int i=0; void setup() { pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); } void loop() { analogWrite(led1,255); analogWrite(led2,0); analogWrite(led3,0); analogWrite(led1,0); analogWrite(led2,255); analogWrite(led3,0); analogWrite(led1,0); analogWrite(led2,0); analogWrite(led3,255); }