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


const int dhtPin=13;
DHTesp dhtSensor;
TempAndHumidity data;

const int trigPin=2;
const int echoPin=15;
int distance,duration;

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

unsigned long mychannelId=2323;
char mywriteapiKey[]="";
int statusCode;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  dhtSensor.setup(dhtPin,DHTesp::DHT22);

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

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

void loop() {
  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("connected");
  // put your main code here, to run repeatedly:
  data=dhtSensor.getTempAndHumidity();
  Serial.println(data.humidity);
  Serial.println(data.temperature);
// this speeds up the simulation
digitalWrite(trigPin,HIGH);
delayMicroseconds(10);
digitalWrite(trigPin,LOW);
duration=pulseIn(echoPin,HIGH);
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(mychannelId,mywriteapiKey);
if(statusCode==200)
Serial.println("channel updated");
else
Serial.println("problem writing data 504 error");
delay(15000);

}