//Blink 6 LEDs one after another //the brute force way void setup() { pinMode(0,OUTPUT); //set the following pins as outputs pinMode(1,OUTPUT); pinMode(2,OUTPUT); pinMode(3,OUTPUT); pinMode(4,OUTPUT); pinMode(5,OUTPUT); } void loop() { digitalWrite(0, HIGH); delay(500); digitalWrite(0, LOW); digitalWrite(1, HIGH); delay(500); digitalWrite(1, LOW); digitalWrite(2, HIGH); delay(500); digitalWrite(2, LOW); digitalWrite(3, HIGH); delay(500); digitalWrite(3, LOW); digitalWrite(4, HIGH); delay(500); digitalWrite(4, LOW); digitalWrite(5, HIGH); delay(500); digitalWrite(5, LOW); }