void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
 pinMode(15,INPUT_PULLUP);
pinMode(4, OUTPUT);
pinMode(18, OUTPUT);
}

void loop() {
 Serial.println(digitalRead(15));
 if(digitalRead(15)==1){
 digitalWrite(4,0);
}
else{
digitalWrite(4,1);
}
  delay(100); 
  Serial.println(digitalRead(15));
 if(digitalRead(15)==1){
 digitalWrite(18,0);
}
else{
digitalWrite(18,1);
}
  delay(100); 
  }