void setup() {
pinMode(2, OUTPUT); // LED 1
pinMode(3, OUTPUT); // LED 2
pinMode(4, OUTPUT); // LED 3
pinMode(5, OUTPUT); // LED 4
pinMode(6, OUTPUT); // LED 5
pinMode(7, OUTPUT); // LED 6
pinMode(8, OUTPUT); // LED 7
pinMode(9, OUTPUT); // LED 8
pinMode(10, OUTPUT); // buzzer
}
void loop() {
digitalWrite(9, LOW); // Turn OFF LED 8
digitalWrite(2, HIGH); // Turn ON LED 1
digitalWrite(10, HIGH); // Turn ON buzzer
delay(500);
digitalWrite(2, LOW); // Turn OFF LED 1
digitalWrite(3, HIGH); // Turn ON LED 2
delay(500);
digitalWrite(3, LOW); // Turn OFF LED 2
digitalWrite(4, HIGH); // Turn ON LED 3
digitalWrite(10, LOW); // Turn ON buzzer
delay(500);
digitalWrite(4, LOW); // Turn OFF LED 3
digitalWrite(5, HIGH); // Turn ON LED 4
delay(500);
digitalWrite(5, LOW); // Turn OFF LED 4
digitalWrite(6, HIGH); // Turn ON LED 5
delay(500);
digitalWrite(6, LOW); // Turn OFF LED 5
digitalWrite(7, HIGH); // Turn ON LED 6
digitalWrite(10, HIGH); // Turn ON buzzer
delay(500);
digitalWrite(7, LOW); // Turn OFF LED 6
digitalWrite(8, HIGH); // Turn ON LED 7
delay(500);
digitalWrite(8, LOW); // Turn OFF LED 7
digitalWrite(9, HIGH); // Turn ON LED 8
delay(500);
digitalWrite(10, LOW); // Turn ON buzzer
}