1  #define ledPin 13
 2  
 3  void setup() {
 4    pinMode(ledPin, OUTPUT);
 5    Serial.begin(9600); // Make sure baud rate matches
 6    Serial.println("Arduino Ready");
 7  }
 8  
 9  void loop() {
10    delay(1000);
11    Serial.println("Hello World");
12  }