#include <WiFi.h>
#include <ThingSpeak.h>
#include <DHT.h>
#define Dht_pin 4
#define dht_type DHT22
DHT dht(Dht_pin,dht_type);
char ssid[]="Wokwi-GUEST";
char pass[]="";   
WiFiClient client;     
long myChannelNumber=2619609;
const char * myWriteAPIKey="NW66GDJF3I729357";
int statusCode;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  ThingSpeak.begin(client);
  WiFi.mode(WIFI_STA);
  dht.begin();
  delay(2000);
}
void loop() {
  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("\n connected");
  }
  float humd=dht.readHumidity();
  float temp=dht.readTemperature();
  Serial.println("Temperature value=");
  Serial.println(temp);
  Serial.println("Humidity value=");
  Serial.println(humd);
  ThingSpeak.setField(1,temp);
  ThingSpeak.setField(2,humd);
  statusCode=ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);
  if(statusCode == 200)
  {
    Serial.println("channel update successfully.");
  }
  else
  {
    Serial.println("Problem Writting data. HTTP error code:"+
    String(statusCode));
  }
  delay(2000);
}