#include <WiFi.h>
#include <ThingSpeak.h>
#include "DHTesp.h"
const int trig = 2;
const int echo = 4;

long duration;
long distance;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber =  2076952;
const char * myWriteAPIKey = "NEPHKCAYP5N0KLO1";

DHTesp dhtSensor;
TempAndHumidity data;
const int DHT_PIN = 15;

int statusCode;

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

void loop() {
  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));

 


  data = dhtSensor.getTempAndHumidity();
  Serial.println("Humi: "+ String(data.humidity));
  Serial.println("Temp: "+ String(data.temperature));
  Serial.println("------------");

  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 Writting data.HTTP error code:" +String(statusCode));

  }
  

  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation
}