// RPi Helllo World in Arduino Sketch
// LED at GPIO 2

const int led = 2;

void setup() {
  // put your setup code here, to run once:
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico!");
  pinMode(led, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(led, HIGH);
  Serial1.println("LED is ON");
  delay(500);
  digitalWrite(led, LOW);
  Serial1.println("LED is OFF");
  delay(500);
}