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

#define DHTPIN 13  
#define DHTTYPE DHT22   
const int LEDR_PIN = 5;
const int LEDB_PIN = 16;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
int ledState1;
int ledState2;
const int ldrPin = 2;      
const int servoPin = 4;     

Servo servo;

LiquidCrystal_I2C lcd(0x27, 16, 2);
DHT dht(DHTPIN, DHTTYPE);
WiFiClient client;

void setup() {
  Wire.begin();
  servo.attach(servoPin, 500, 2400);
  lcd.begin(16, 2);

  lcd.backlight();
  
  lcd.setCursor(0, 0);
  lcd.print("Cao Thi Lan Anh");
  lcd.setCursor(0, 1);
  lcd.print("21161156");

  Serial.begin(115200);
  pinMode(LEDR_PIN, OUTPUT);
  pinMode(LEDB_PIN, OUTPUT);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
}

void loop() {
  int ldrValue = analogRead(ldrPin);

  int servoAngle;

  if (ldrValue > 2000) {
    servoAngle = 180;
  } else {
    servoAngle = 0;
  }

  servo.write(servoAngle);

  Serial.print("LDR Value: ");
  Serial.print(ldrValue);
  Serial.print(" | Servo Angle: ");
  Serial.println(servoAngle);

  delay(100); 
  int ledState1 = digitalRead(LEDB_PIN);
  int ledState2 = digitalRead(LEDR_PIN);
  float h = dht.readHumidity();
  float t = dht.readTemperature();  
  if (t < 10) {
    digitalWrite(LEDB_PIN, HIGH);
    delay(300);
    digitalWrite(LEDB_PIN, LOW);
    delay(300);
  }else if (t > 50){
    digitalWrite(LEDR_PIN, HIGH);
    delay(300);
    digitalWrite(LEDR_PIN, LOW);
    delay(300);
  }
  
  
  Serial.println("Temp: " + String(t, 2) + "°C");
  Serial.println("Humidity: " + String(h, 1) + "%");
  Serial.println("---");

  delay(1000);
}