void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(12, OUTPUT);
  pinMode(18, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int switchcase= digitalRead(18);
  Serial.println(switchcase);
  if(switchcase==1)
  {
    digitalWrite(12, HIGH);
  }
  else
  {
    digitalWrite(12, LOW);
  }
 
  
}