#define LED1 13
#define LED2 12
#define LED3 8
#define LED4 7
//blinking leds
//4 leds
//turn off



void setup() {
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(LED4, OUTPUT);
}
//BLINKING LEDS
void loop() {
digitalWrite(LED1,HIGH);
delay(500);
digitalWrite(LED1,LOW);
delay(500);
digitalWrite(LED2,HIGH);
delay(500);
digitalWrite(LED2,LOW);
delay(500);
digitalWrite(LED3,HIGH);
delay(500);
digitalWrite(LED3,LOW);
delay(500);
digitalWrite(LED4,HIGH);
delay(500);
digitalWrite(LED4,LOW);
delay(500);
}