using TinkerCAD

// C++ code

//

/*

  This program blinks pin 13 of the Arduino (the

  built-in LED)

*/

void setup()

{

  pinMode(LED_BUILTIN, OUTPUT);

}

void loop()

{

  // turn the LED on (HIGH is the voltage level)

  digitalWrite(LED_BUILTIN, HIGH);

  delay(1000); // Wait for 1000 millisecond(s)

  // turn the LED off by making the voltage LOW

  digitalWrite(LED_BUILTIN, LOW);

  delay(1000); // Wait for 1000 millisecond(s)

}