byte ledPin = 14;
byte Buzzer = 12;
#include <LiquidCrystal.h>

LiquidCrystal lcd (19, 18, 5, 17, 16, 4 );
void setup() {

  Serial.begin(115200);

  Serial.println("Hello");
  pinMode(ledPin, OUTPUT);
  pinMode(Buzzer, OUTPUT);
  lcd.begin(16, 2);
  lcd.print("Type in Serial");
  lcd.setCursor(0, 0);

}


void loop() {

  while (Serial.available()) {

    char data = Serial.read();
    Serial.print(data);
    switch (data)
    {
    case '1':
      digitalWrite(Buzzer, HIGH);
      Serial.println("Buzzer on");
      lcd.print("Buzzer on");
      lcd.setCursor(0, 0);
      break;

    case '2':
        digitalWrite(Buzzer, LOW);
      Serial.println("Buzzer off");
      lcd.print("Buzzer off");
      lcd.setCursor(0, 0);
      break;
    case '3':
        lcd.clear();
      break;
    case '4':
      analogWrite(ledPin, 3000);
      Serial.println("led on");
      lcd.print("led on");
      lcd.setCursor(0, 0);
      break;
    case '5':
        analogWrite(ledPin,0);
      Serial.println("led off");
      lcd.print("led off");
      lcd.setCursor(0, 0);
      break;
    }





  }

}