#include <DHT.h>
#include <Servo.h>
#define DHTpin A1
#define DHTTYPE DHT22
#define servopin A3
#define wateropen 20
#define waterclose 90
const int ledApin = 4;
const int ledBpin = 7;
const int buzzpin = 2;
bool WaterActive = false;
bool WaterDisabled = false;
float hum;
float temp;
Servo lockservo;

DHT dht(DHTpin, DHTTYPE);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(ledApin, OUTPUT);
  pinMode(ledBpin, OUTPUT);
  pinMode(buzzpin, OUTPUT);
  lockservo.attach(servopin);
  dht.begin();

}

void loop() {
  // put your main code here, to run repeatedly:
  hum = dht.readHumidity();
  temp= dht.readTemperature();
  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print(" %, Temp: ");
  Serial.print(temp);
  Serial.println(" Celcius");
  delay(2000);

  if (hum <= 50 && !WaterDisabled){
    WaterActive = true;
  } else {
    WaterActive = false;
  }

  if (WaterActive) {
    digitalWrite(ledApin, HIGH);
    digitalWrite(ledBpin, LOW);
    lockservo.write(wateropen);
    tone(buzzpin, 1000); // สร้างเสียง
  } else {
    // หากอยู่นอกระยะให้ปิดเสียงและไฟ
    digitalWrite(ledApin, LOW);
    digitalWrite(ledBpin, HIGH);
    lockservo.write(waterclose);
    noTone(buzzpin);
  }

  if (hum > 50) {
  WaterDisabled = false;
  }
}