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

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

char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber = 2244398;
const char * myWriterAPIkey = "DF2WBP1OY4I4CHWY";

const int trig = 13;
const int echo = 12;

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("Temperature:" + String(data.temperature, 2)+" °C");
  Serial.println("Humidity:" + String(data.humidity,1)+"%");

  //delay(1000);
  digitalWrite(trig, LOW);
  delayMicroseconds(5);
  digitalWrite(trig, HIGH);
  delayMicroseconds(15);
  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,myWriterAPIkey);
if (statuscode == 200)
{
  Serial.println("channel updated sussessfuly");
}
else
{
  Serial.println("Problem writing data . Http error code:" + String (statuscode));
}
delay(15000);
}