#include <DHTesp.h>
#include <WiFi.h>
#include<ThingSpeak.h>
DHTesp dhtSensor;
TempAndHumidity data;
const int dhtPin=25;

const int trigPin=12;
const int echoPin=14;

char ssid[]="Wokwi-GUEST";
char pass[]="";
WiFiClient client;

unsigned long myChannelNumber= 2479862;
const char* myWriteAPIKey="NU2YGPDCJKW9Q7E7";
int statusCode;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(dhtPin,DHTesp::DHT22);

  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  delay(1000);
  
}


void getwifi()
{
  if(WiFi.status()!=WL_CONNECTED)
  {
     Serial.print("Attempting to connect");
     while(WiFi.status()!=WL_CONNECTED)
    {
      WiFi.begin(ssid,pass);
      Serial.print(".");
      delay(5000);
    }
  }
  Serial.println("\nConnected");
}


void loop() {
   getwifi();
  data = dhtSensor.getTempAndHumidity();
   Serial.println(data.humidity);
   Serial.println(data.temperature);

   digitalWrite(trigPin, LOW);
   delayMicroseconds(2);
   digitalWrite(trigPin, HIGH);
   delayMicroseconds(10);
   digitalWrite(trigPin, LOW);
   int duration = pulseIn(echoPin,HIGH);
   int distance = duration*0.03405/2;
    Serial.println(distance);


  ThingSpeak.setField(1,data.humidity);
  ThingSpeak.setField(2,data.temperature);
  ThingSpeak.setField(3,distance);
    statusCode=ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);

 

  if(statusCode==200)
  {
    Serial.println("Channel update successful");
  }
  else
  {
    Serial.println("Problem Writing data: HTTp error code:"+String(statusCode));
  }
  delay(15000);
  

}