#include <Servo.h>
#include <DHT.h>
//PENAMAAN PIN
int varPinDHT     = A0;
int varPinTanah   = A1;
int varPinLDR     = A2;
int varPompa      = 2;
int varLampu      = 3;
int varBuzzer     = 4;
int varServoPin   = 9;

//PENAMAAN sensor kelembaban
#define DHTTYPE DHT22
DHT varDHT(varPinDHT, DHTTYPE);

//variabel yang digunakan
int varNilaiTanah;
int varNilaiLDR;
int varPersenTanah;

float varSuhu;
float varKelembapanUdara;

//NAMA SERVO
Servo varAtap;

unsigned long varWaktuSebelumnya = 0;
const long varInterval = 1000;

bool varStatusAtap = false;

void setup() {
  pinMode(varPompa, OUTPUT);
  pinMode(varLampu, OUTPUT);
  pinMode(varBuzzer, OUTPUT);

  varAtap.attach(varServoPin);
  varDHT.begin();

  Serial.begin(9600);
}

void loop() {

  varNilaiTanah = analogRead(varPinTanah);
  varNilaiLDR   = analogRead(varPinLDR);

  varSuhu = varDHT.readTemperature();
  varKelembapanUdara = varDHT.readHumidity();

  varPersenTanah = map(varNilaiTanah, 0, 1023, 0, 100);

  if (varNilaiTanah < 400 && varNilaiLDR > 300) {
    digitalWrite(varPompa, HIGH);
  } else {
    digitalWrite(varPompa, LOW);
  }

  if (varNilaiLDR < 300) {
    varAtap.write(180);
    digitalWrite(varLampu, HIGH);

    if (!varStatusAtap) {
      for (int i = 0; i < 3; i++) {
        digitalWrite(varBuzzer, HIGH);
        delay(200);
        digitalWrite(varBuzzer, LOW);
        delay(200);
      }
      varStatusAtap = true;
    }
  } else {
    varAtap.write(0);
    digitalWrite(varLampu, LOW);
    varStatusAtap = false;
  }

  if (millis() - varWaktuSebelumnya >= varInterval) {
    varWaktuSebelumnya = millis();

    Serial.print("Tanah: ");
    Serial.print(varPersenTanah);
    Serial.print("% | Udara: ");
    Serial.print(varKelembapanUdara);
    Serial.print("% | Suhu: ");
    Serial.print(varSuhu);
    Serial.print("C | Atap: ");

    if (varNilaiLDR < 300) {
      Serial.println("TUTUP");
    } else {
      Serial.println("BUKA");
    }
  }
}