#include <Servo.h>

const int servoButtonPin = 2;
const int ledButtonPin = 3;
const int toneButtonPin = 4;
const int ledPin = 5;
const int servoPin1 = 6;
const int servoPin2 = 7;

int servoButtonState = 0;
int lastServoButtonState = 0;
int ledButtonState = 0;
int lastLedButtonState = 0;
int toneButtonState = 0;
int lastToneButtonState = 0;

Servo servo1;
Servo servo2;

bool ledOn = false;

void setup() {
  pinMode(servoButtonPin, INPUT_PULLUP);
  pinMode(ledButtonPin, INPUT_PULLUP);
  pinMode(toneButtonPin, INPUT_PULLUP);
  pinMode(ledPin, OUTPUT);

  servo1.attach(servoPin1);
  servo2.attach(servoPin2);
}

void loop() {
  servoButtonState = digitalRead(servoButtonPin);

  if (servoButtonState != lastServoButtonState) {
    if (servoButtonState == LOW) {
      servo1.write(0);
      servo2.write(180);
    } else {
      // If the servo button is released (HIGH state), move both servos back to their initial positions
      servo1.write(90);
      servo2.write(90);
    }
    delay(50);
  }

  lastServoButtonState = servoButtonState;

  ledButtonState = digitalRead(ledButtonPin);

  // Check if the LED button state has changed
  if (ledButtonState != lastLedButtonState) {
    if (ledButtonState == LOW) {
      ledOn = !ledOn;

      digitalWrite(ledPin, ledOn ? HIGH : LOW);
    }
    delay(50);
  }
  lastLedButtonState = ledButtonState;

  // Read the state of the button for playing tone
  toneButtonState = digitalRead(toneButtonPin);

  if (toneButtonState != lastToneButtonState) {
    if (toneButtonState == LOW) {
      tone(8, 1000, 500); // Pin 8, frequency 1000Hz, duration 500ms
    } else {
      noTone(8);
    }
    delay(50);
  }

  lastToneButtonState = toneButtonState;
}