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

DHTesp dhtSensor;
TempAndHumidity data;
char ssid[]="Wokwi-GUEST";
char pass[]="";
WiFiClient client;
unsigned long myChannelNumber=2076944;
const char *myWriteAPIkey="PXGZR7CX7SQ3RLYK";

const int DHT_PIN=15;
const int trig=12;
const int echo=14;

long duration;
long distance;

int statusCode;


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

void loop() {
  data=dhtSensor.getTempAndHumidity();
  Serial.println("Humi:"+String(data.humidity));
  Serial.println("Temp:"+String(data.temperature));
  Serial.println("------------");
  // put your main code here, to run repeatedly:
  digitalWrite(trig, HIGH);
  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.print("attempting to connect");
    while(WiFi.status()!=WL_CONNECTED)
    {
      WiFi.begin(ssid,pass);
      Serial.print(".");
      delay(5000);
    }
    Serial.println("\nConnected.");
  }
  ThingSpeak.setField(1,data.humidity);
  ThingSpeak.setField(2,data.temperature);
  ThingSpeak.setField(3,distance);
  statusCode=ThingSpeak.writeFields(myChannelNumber,myWriteAPIkey);

  if(statusCode==200){
    Serial.println("channel update successful");
  }
  else{
    Serial.println("problem writing data.HTTP error code:"+String(statusCode));
  }



  delay(1000); // this speeds up the simulation
}