// made with ChatGBT
// Pin connected to the button
const int buttonPin = 8;

// Variable to store the previous button state
int prevButtonState = HIGH;

void setup() {
  // Initialize serial communication
  Serial.begin(9600);

  // Set button pin as input
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  // Read the state of the button
  int buttonState = digitalRead(buttonPin);

  // Check if the button is pressed
  if (buttonState == LOW && prevButtonState == HIGH) {
    Serial.println("Button pressed!");
 
  }
  
  // Send a serial code while the button is not pressed
  if (buttonState == HIGH) {
    Serial.println("b");
  }

  prevButtonState = buttonState;
}