#include <ESP32Servo.h>
#define red 18
#define green 15
#define SERVO_PIN 4
#define SENSOR_PIN 12


Servo my_servo;

void setup() {
  Serial.begin(115200);
  my_servo.attach(SERVO_PIN);
  pinMode(SENSOR_PIN, INPUT);
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
}

void loop() {
  int sensor_read = analogRead(SENSOR_PIN);
  if(sensor_read >= 2045){
    Serial.print("the door is opened...");
    Serial.println(" (distance is within the range of 100)");
    my_servo.write(180);
    digitalWrite(green, HIGH);
    digitalWrite(red, LOW);
  }  

  else{

    Serial.print("the door is closed...");
    Serial.println(" (distance is not within the range of 100)");
    my_servo.write(0);
    digitalWrite(red, HIGH);
    digitalWrite(green, LOW);
  }


  delay(1000);
}