Hello, World.

Let’s get familiarized with how Arduino code is structured between void setup() and void loop(). Use the following code to explore:

void setup() {
  // put your setup code here, to executed once:
  Serial.begin(9600);
  Serial.println("Hello, world.");
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println("This is loop code.");
  delay(1000);
}

Once you’ve pasted the code, upload it to the connected Arduino board. Take a look at the Serial Monitor/Output window.

Now that you’ve gotten some code to work, let’s get some hardware working in the next page. >>