//https://github.com/ostad-ai/Arduino-Tutorial
//Threads, Instagram: @ostad.ai
// One LED is connected to Arduino through a resistor to limit current
const int LEDPin=13;
void setup() {
  // put your setup code here, to run once:
  pinMode(LEDPin,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(LEDPin, HIGH);
delay(250);
digitalWrite(LEDPin, LOW);
delay(250);
}