#include "WiFi.h"
#include "DHTesp.h"

const int DHT_PIN = 13;
const char* ssid = "Wokwi-GUEST";
const char* password =  "";
const int redPin = 15;
const int yellowPin = 2;
const int greenPin = 4;
DHTesp dhtSensor;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  Serial.println("Hello, ESP32!");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi..");
  }
  Serial.println("Connected to the WiFi network");
  // Print local IP address and start web server
  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  Serial.begin(9600);
  // setup pin as a digital output pin
  pinMode (redPin, OUTPUT);
  pinMode (yellowPin, OUTPUT);
  pinMode (greenPin, OUTPUT);
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  delay(2000); // Wait for a new reading from the sensor (DHT22 has ~0.5Hz sample rate)
  if(data.temperature<=20){
    digitalWrite (greenPin, HIGH);  // turn on the LED
    Serial.println("Green light is on");
  }
  else{
    digitalWrite (greenPin, LOW);
  };
  if(data.temperature>20&&data.temperature<=35){
    digitalWrite (yellowPin, HIGH); // turn on the LED
    Serial.println("Yellow light is on");
  }
  else{
    digitalWrite (yellowPin, LOW);
  };
  if(data.temperature>35){
    digitalWrite (redPin, HIGH);  // turn on the LED
    Serial.println("Red light is on");
  }
  else{
    digitalWrite (redPin, LOW);
  };
}