#include<WiFi.h>
#include<ThingSpeak.h>
#include <DHTesp.h>
DHTesp dhtSensor;
const int dhtpin=15;
TempAndHumidity data;

float distance;
float duration;

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

unsigned long myChannelNumber=2077236;
const char* myWriteAPIKey="69YGAQ04CCHGR293";
int statusCode;                                                                                                                                                                                                                                                                                                                                         

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(2, OUTPUT);
  pinMode(4, INPUT);
  dhtSensor.setup(dhtpin,DHTesp::DHT22);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  delay(1000);
}
float getDistance(){
  digitalWrite(2, LOW);
  delayMicroseconds(2);
  digitalWrite(2,HIGH);
  delayMicroseconds(10);
  digitalWrite(2,LOW);
  duration=pulseIn(4,HIGH);
  return(duration*0.034/2);

}
void loop() {
  getWiFi();
  data=dhtSensor.getTempAndHumidity();
  Serial.println("Humi"+String(data.humidity));
  Serial.println("Temp"+String(data.temperature));
  distance=getDistance();
  Serial.println("ditance"+String(distance));
  Serial.println("<------------------------------------------------------>");

  ThingSpeak.setField(1,distance);
  ThingSpeak.setField(2,data.temperature);
  ThingSpeak.setField(3,data.humidity);
  statusCode=ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);

  if(statusCode=200){
   Serial.println("UPDATED");

  }
  else{
    Serial.println("ERROR");
  }
  delay(15000);
}
void getWiFi()
{
 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("Connected");

}