void setup() {
pinMode(2, OUTPUT); pinMode(3, OUTPUT);
pinMode(4, OUTPUT); pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
}
void loop() {
digitalWrite(2, 1); delay(1000);
digitalWrite(3, 1); delay(1000);
digitalWrite(4, 1); delay(1000);
digitalWrite(5, 1); delay(1000);
digitalWrite(6, 1); delay(1000);
digitalWrite(2, 0); delay(1000);
digitalWrite(3, 0); delay(1000);
digitalWrite(4, 0); delay(1000);
digitalWrite(5, 0); delay(1000);
digitalWrite(6, 0); delay(1000);
}