//created by Haya Al Nuwab
//ENGR103 Arduino HW 1
//Heart Beat Blinking Pattern

void setup() {
pinMode(LED_BUILTIN,OUTPUT); //pin 13 is an output

}

void loop() {

digitalWrite(LED_BUILTIN, LOW); //turn the LED off
delay(200); //

digitalWrite(LED_BUILTIN, HIGH); //turn the LED on
delay(150); //LED is on for a short amount of time

digitalWrite(LED_BUILTIN, LOW); //turn the LED off
delay(150); // the LED is turned off for a shorter amount of time than before

digitalWrite(LED_BUILTIN, HIGH); //turn the LED on
delay(500); //turning the LED on for a longer period of time than before


}