#include <WiFi.h>
#include <ThingSpeak.h>
#include <DHTesp.h>
const int dhtpin=13;
const char* ssid = "Wokwi-GUEST";
const char* pass = "";
WiFiClient client;
unsigned long myChannelNumber = 2242349;
const char * myWriteAPIKey = "IG9FON62V08FPZTT";
DHTesp dhtsensor;
TempAndHumidity data;
const int trig=2;
const int echo=4;
long duration;
int distance;
int statusCode;
void setup() {
  Serial.begin(115200);
  dhtsensor.setup(dhtpin,DHTesp::DHT22);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  data=dhtsensor.getTempAndHumidity();
  Serial.println("Humidity : "+String(data.temperature));
  Serial.println("Temperature :"+String(data.temperature));
  delay(6000);
  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));
  delay(100);
  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(1500);
}