#include <WiFi.h>
#include <ThingSpeak.h>
#include "DHTesp.h"

DHTesp dhtsensor;
TempAndHumidity data;
const int DHT_PIN =15;

char ssid[] = "Wokwi-GUEST";
char pass[]= "";
WiFiClient client;
unsigned long mychannelNumber = 2239276;
const char * myWriteAPIKey = "M532Z0B11KTX586V";

const int trig =2;
const int echo =4;

long duration;
long distance;

int statusCode;



void setup()
{
  Serial.begin(115200);
  pinMode(trig,OUTPUT);
  pinMode(echo, INPUT);

  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);

  Serial.println("Hello,ESP321");
  dhtsensor.setup(DHT_PIN,DHTesp::DHT22);
  }

void loop(){

data=dhtsensor.getTempAndHumidity();
  Serial.println("Temperature:"+String(data.temperature,2)+"°C");
  Serial.println("Humidity:"+String(data.humidity,1)+"%");
  Serial.println("---");

  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
 
 duration = pulseIn(echo,HIGH);
 distance = duration*0.034/2;
 Serial.println("Distance:"+ String(distance));

 delay(1000);

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


  }
  Serial.println("\nConnected.");
}

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


if(statusCode == 200)
{
  Serial.println("channel UPdate Succesfully.");
}
else
{
  Serial.println("problem Writeing data.HTTP error code :"+String(statusCode));
}
delay(15000);
  }