#include "DHTesp.h"
#include <WiFi.h>
#include <ThingSpeak.h>
 DHTesp dhtsensor;
 TempAndHumidity data;
 const int DHT_PIN=15;//use only 15 else it wont work
 const int trig = 2;
const int echo = 4;


char ssid [] = "Wokwi-GUEST"; 
char pass [] =  "";
WiFiClient client;
unsigned long myChannelNumber =  2251369;
const char * myWriteAPIkey = "Y8LXEVJRYB41R2GB"; 


long duration;
int statusCode;
//float distance;
long distance;

 void setup() {
  // put your setup here,to run once:
  Serial.begin(115200);
  dhtsensor.setup(DHT_PIN, DHTesp::DHT22);
   // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}


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)  + 1;
  Serial.println("Distance= " + String (distance));
  
if (WiFi.status() != WL_CONNECTED){

  Serial.println("Attempting to connect");
  while(WiFi.status() != WL_CONNECTED)
  {
    WiFi.begin(ssid, pass);
    Serial.print(",");
    delay(5000);
  }
  Serial.println("/nConnected ");
  }
  ThingSpeak.setField(1, distance);
  ThingSpeak.setField(2, data.temperature);
  ThingSpeak.setField(3,data.humidity);
  statusCode = ThingSpeak.writeFields(myChannelNumber,myWriteAPIkey);

if(statusCode == 200) 
{
    Serial.println("Channel Updated Successfully.");
}
else
{
      Serial.println("Problem Writing data. Http error code :" + String(statusCode));
}
    delay(1500);
  
}