#include <Keypad.h>
#include <Servo.h>
Servo servoku;
int buzzer =11;

const byte ROWS =4;
const byte COLS =4;

char keys [ROWS] [COLS] =
{
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};

byte rowPins[ROWS] = {10, 9, 8, 7,};
byte colPins[COLS] = {6, 5, 4, 3,};
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup()

{
 pinMode(buzzer, OUTPUT);
 servoku.attach(12);
}
void loop()

{

  char keypressed = keypad.getKey();

if (keypressed == '1')

{tone(buzzer,262);
delay(500);
noTone(buzzer);
}

if (keypressed == '2')

{tone(buzzer,294);
delay(500);
noTone(buzzer);
}

if (keypressed == '3')

{tone(buzzer,330);
delay(500);
noTone(buzzer);
}

if (keypressed == '4')
{
  tone(buzzer,349);
delay(500);
noTone(buzzer);
}

if (keypressed == '5')

{tone(buzzer,395);
delay(500);
noTone(buzzer);
}
if (keypressed == '6')
{

  tone(buzzer,440);
delay(500);
noTone(buzzer);
}

if (keypressed == '7')
{
tone(buzzer,494);
delay(500);
noTone(buzzer);
}

if (keypressed == '8')
{
tone(buzzer,523);
delay(500);
noTone(buzzer);
}
if (keypressed == '9')
{
  servoku.write(180);
  delay (1000);
  servoku.write(0);
}
}