#include <DHT.h>
#include <LiquidCrystal_I2C.h>
#include <ESP32Servo.h>

DHT dht(16, DHT22);
LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo shadeServo;
Servo waterServo;
int waterServoPin = 4;
int shadeServoPin = 15;
int hot = 30;
int dry = 10;
int normalTemp = 29;
float temp = normalTemp + 1; // Initialize to a value different from normalTemp
int humid;

void setup() {
  Serial.begin(115200);
  dht.begin();
  delay(2000);
  lcd.init();
  lcd.backlight();
  shadeServo.attach(waterServoPin);
  waterServo.attach(shadeServoPin);
  lcd.setCursor(3, 0);
  lcd.print("Plant Care");
  lcd.setCursor(5, 1);
  lcd.print("System");
  delay(3000);
  lcd.clear();
}

void loop() {
  float newTemp = dht.readTemperature();
  int newHumid = dht.readHumidity();

if (newTemp != temp) {
    temp = newTemp;
    humid = newHumid;

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Temp: ");
    lcd.print(temp);
    lcd.setCursor(9, 0);
    lcd.println("C");
    lcd.setCursor(0, 1);
    lcd.print("Humid: ");
    lcd.print(humid);
    lcd.setCursor(12, 1);
    lcd.println("%");
  }

if (temp >= hot) {
    lcd.setCursor(0, 1);
    lcd.print("Too Hot! Shading...");
    shadeServo.write(90);
  } else {
    shadeServo.write(0);
  }

if (humid <= dry) {
    lcd.setCursor(0, 0);
    lcd.print("Too Dry! Water...");
    waterServo.write(90);
    delay(2000);
    waterServo.write(0);
} else {
    waterServo.write(0);
  }
}