#include <DHT.h>
#include <LiquidCrystal_I2C.h>
#include "WiFi.h"
const char* ssid = "Wokwi-GUEST";
int channel = 6;
const char* password = "";
const int dhtPin = 14;
const int triggerPin = 12;
const int echoPin = 27;
DHT dht(dhtPin, DHT22);
LiquidCrystal_I2C lcd(0x27, 20, 4);
String wp="";

void setup() {

  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
  lcd.begin(20, 4);
  dht.begin();
  pinMode(triggerPin, OUTPUT);
  pinMode(echoPin, INPUT_PULLUP);
  WiFi.begin(ssid, password, channel);
  
  while (WiFi.status() != WL_CONNECTED)
  {
    lcd.setCursor(0,0);
    lcd.println("Try to connect wifi");
    // delay(100);
  }
  Serial.print("IP Address : ");

  Serial.println(WiFi.localIP());
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Connected to wifi: ");
  lcd.setCursor(3,1);
  lcd.print(WiFi.localIP());
  delay(2000);
}
void loop() {

 
    float humidity = dht.readHumidity();
        // Read temperature as Celsius (the default)
    float temperature = dht.readTemperature();
    lcd.setCursor(0, 0);
    lcd.print("Humiditiy : " + String(humidity)+" %");
    lcd.setCursor(0, 1);
    lcd.print("Temp  : " + String(temperature)+(char)223+"C");
    Serial.println("Humiditiy : " + String(humidity));
    Serial.println("TEmp is : " + String(temperature));

    lcd.setCursor(0, 2);
    digitalWrite(triggerPin, LOW);
    delayMicroseconds(2);
    digitalWrite(triggerPin, HIGH);
    delayMicroseconds(10);
    digitalWrite(triggerPin, LOW);
    // Measure the echo time
    float duration = pulseIn(echoPin, HIGH);
    // Calculate the distance in centimeters
    // distance=duration×0.034cm/μs/2
    // 0.034 speed of sound in air
    float distance = duration * 0.034 / 2;
     
    lcd.setCursor(0, 2);
    lcd.print("Distance: " + String(distance) + " cm");
    lcd.setCursor(0,3);
    lcd.print("Distance: "+String(distance/30.48)+" ft");
 
    
  
}