relays.ino

void setup() {
  // put your setup code here, to run once:
  for (int i = 2; i < 11; i++) {
    pinMode(i,OUTPUT);
    digitalWrite(i, HIGH);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  for (int i = 2; i < 11; i++) {
    digitalWrite(i,LOW);
    delay(200);
    digitalWrite(i,HIGH);
    delay(200);
  }
}