// Project objective: Light up an external LED when a push button is pressed
//
// Hardware:
// - Push button to GPIO16
// - LED to GPIO15
// - 220 ohm resistor for LED

const int buttonPin = 16;  // GPIO16 on the Pico
const int ledPin = 15;     // GPIO15 on the Pico

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH) {
    digitalWrite(ledPin, HIGH);
    Serial.println("H");
  } else {
    digitalWrite(ledPin, LOW);
    Serial.println("L");
  }

  delay(10);
}