int ledPin=12;
int buzzPin=15;
int ledVal, buzzVal;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(ledPin, OUTPUT);
  pinMode(buzzPin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println("Enter value to control Led : ");
  delay(5000); 
if(Serial.available()>0)
{
  ledVal = Serial.parseInt();
  Serial.println(ledVal);
  delay(500); 
}
  if(ledVal==1)
  {
    digitalWrite(ledPin, HIGH);
  }
  if(ledVal==2)
  {
    digitalWrite(ledPin, LOW);
  }


Serial.println("Enter value to control Buzzer : ");
delay(5000); 
if(Serial.available()>0)
{
  buzzVal = Serial.parseInt();
  Serial.println(buzzVal);
  delay(500); 
}
  if(buzzVal==3)
  {
    digitalWrite(buzzPin, HIGH);
  }
   if(buzzVal==4)
  {
    digitalWrite(buzzPin, LOW);
  }  
}