#include <DHTesp.h>
#include <WiFi.h>
#include <ThingSpeak.h>
DHTesp dhtSensor;
TempAndHumidity data;
const int DHT_PIN = 17; 
char ssid[]="Wokwi-GUEST";
char pass[]="";
WiFiClient client;
 long myChannelNumber =  2629787;
const char * myWriteAPIKey = "696QTXAO5DEOZ8DH";
int statusCode;
int distance;
void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  pinMode(2, OUTPUT);
  pinMode(4, INPUT);
}
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");
   }
  
   data=dhtSensor.getTempAndHumidity();
  Serial.println("humi:"+String(data.humidity,1));
  Serial.println("Temp:"+String(data.temperature,2));
  Serial.println("...................");
delay(1000);
ThingSpeak.setField(1,data.temperature);
ThingSpeak.setField(2,data.humidity);
ThingSpeak.setField(3,distance);
statusCode = ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);
if(statusCode == 200) { //successful writing code
Serial.println("Channel update successful.");
}
else {
Serial.println("Problem Writing data. HTTP error code :" +
String(statusCode));
}
{
  digitalWrite(2, HIGH);
  delay(100);
  digitalWrite(2, LOW);
  distance = pulseIn(4,HIGH);
  Serial.println("signal received");
  int c = (distance*0.040/2);
  Serial.println(c);
}

}