CODE
void setup() {
// put your setup code here, to run once:
pinMode(8, OUTPUT);
pinMode (9, OUTPUT);
pinMode (10, OUTPUT);
pinMode (11, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite (8, HIGH);
delay (1000);
digitalWrite (8, LOW);
delay (500);
digitalWrite (9, HIGH);
delay (1000);
digitalWrite (9, LOW);
delay (500);
digitalWrite (10, HIGH);
delay (1000);
digitalWrite (10, LOW);
delay (500);
digitalWrite (11, HIGH);
delay (1000);
digitalWrite (11, LOW);
delay (500);
}