const int Rpin = 23;
const int Gpin = 22;
int Rold = LOW;  // default/idle value
int Gold = LOW;  // default/idle value
int mode = 0;

void setup() {
  Serial.begin(115200);
  Serial.println("Press the button.");

  pinMode(Rpin, INPUT);
  pinMode(Gpin, INPUT);
}

void loop() {
  // Read the current state of Rpin
  int Rnew = digitalRead(Rpin);

  // Check if the state of Rpin has changed (button press detected)
  if (Rnew != Rold) {
    if (Rnew == HIGH) {
      mode = 1;  // Toggle to mode 1 when Rpin is HIGH
    }
    // Update Rold to store the last known state
    Rold = Rnew;
  }

  // Read the current state of Gpin
  int Gnew = digitalRead(Gpin);

  // Check if the state of Gpin has changed (button press detected)
  if (Gnew != Gold) {
    if (Gnew == HIGH) {
      mode = 2;  // Toggle to mode 2 when Gpin is HIGH
    }
    // Update Gold to store the last known state
    Gold = Gnew;
  }

  // Output the current mode
  Serial.println(mode);

  // Small delay to stabilize the loop and prevent excessive updates
  delay(100);
}