//This code is edited by Yogesh Bawane  

//for impulsetech Youtube channel https://youtu.be/RpQxJkEZ-fA

//For complete video tutorial visit https://youtu.be/RpQxJkEZ-fA 



#include <WiFi.h>
#include <HTTPClient.h>




#define DHTPIN 2     
#define DHTTYPE DHT22 


#define ThermistorPin 35
#define LDR_PIN       34



//our sensor is DHT11 type

#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);



const char * ssid = "impulsetech";

const char * password = "impulse567";



String server = "http://maker.ifttt.com";

String eventName = "sensor_data";

String IFTTT_Key = "drlqzriADlETJtD04KV_NfpVmzvtAVhrEhUSGNRNnN7";

String IFTTTUrl="https://maker.ifttt.com/trigger/sensor_data/with/key/drlqzriADlETJtD04KV_NfpVmzvtAVhrEhUSGNRNnN7";



int value1;

int value2;

int value3;



void setup() {

  Serial.begin(115200);

  dht.begin();

  WiFi.mode(WIFI_STA);

  WiFi.begin(ssid, password);



  while (WiFi.status() != WL_CONNECTED) {

    delay(500);

    Serial.print(".");

  }

  Serial.println("Viola, Connected !!!");

}



float getLightPercentage(void)

{

  int ldrRawVal;

  float percentage;

  ldrRawVal = analogRead(LDR_PIN);    

  percentage = ((float)((ldrRawVal*100)/4096));

  return percentage;

}



void sendDataToSheet(void)

{

  String url = server + "/trigger/" + eventName + "/with/key/" + IFTTT_Key + "?value1=" + String((int)value1) + "&value2="+String((int)value2) +"&value3=" + String((int)value3);  

  Serial.println(url);

  //Start to send data to IFTTT

  HTTPClient http;

  Serial.print("[HTTP] begin...\n");

  http.begin(url); //HTTP



  Serial.print("[HTTP] GET...\n");

  // start connection and send HTTP header

  int httpCode = http.GET();

  // httpCode will be negative on error

  if(httpCode > 0) {

    // HTTP header has been send and Server response header has been handled

    Serial.printf("[HTTP] GET... code: %d\n", httpCode);

    // file found at server

    if(httpCode == HTTP_CODE_OK) {

      String payload = http.getString();

      Serial.println(payload);

    }

  } else {

    Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());

  }

  http.end();



}



void loop() {

  value1 = dht.readHumidity();

  value2 = dht.readTemperature();

  value3 = getLightPercentage(); 



  Serial.print("Values are ");

  Serial.print(value1);

  Serial.print(' ');

  Serial.print(value2);

  Serial.print(' ');

  Serial.println(value3);

  Serial.print(' '); 



  sendDataToSheet();

  delay(10000);


}