#define BLYNK_TEMPLATE_ID "TMPL2PinXViV3"
#define BLYNK_TEMPLATE_NAME "irrigation system"
#define BLYNK_AUTH_TOKEN "WtfLVeNP9AZYBiqorsZNC4SEANeabc5Y"

#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char ssid[] = "ORANGE_7D38";
char pass[] = "T4P87Mfu";



BlynkTimer timer;

#include <Wire.h>               
#include <LiquidCrystal_I2C.h>  
LiquidCrystal_I2C lcd ( 0x27, 16, 2 );

int led2=4;
int led1=2;
#include "DHTesp.h"

const int DHT_PIN = 15;

DHTesp dhtSensor;


BLYNK_WRITE(V0)
{
  
  int value = param.asInt();
  digitalWrite(led1,value);
  
  Blynk.virtualWrite(V1, value);
}


BLYNK_CONNECTED()
{
  
  Blynk.setProperty(V3, "offImageUrl", "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations.png");
  Blynk.setProperty(V3, "onImageUrl",  "https://static-image.nyc3.cdn.digitaloceanspaces.com/general/fte/congratulations_pressed.png");
  Blynk.setProperty(V3, "url", "https://docs.blynk.io/en/getting-started/what-do-i-need-to-blynk/how-quickstart-device-was-made");
}


void myTimerEvent()
{
  
  Blynk.virtualWrite(V2, millis() / 1000);
}

void setup() {

  lcd.init ( );
  lcd.setCursor ( 0, 0 );
  lcd.print ( "Irrigation System" );
  lcd.setCursor ( 0, 1 );
  lcd.print ( "   using IOT     " );
  delay ( 1000 );
  lcd.clear();
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  Serial.begin(115200);
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);// optional 
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  
  timer.setInterval(1000L, myTimerEvent);
}
void DHT_sensor()
{
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  
  Blynk.virtualWrite(V6,String(data.humidity, 1));
  Blynk.virtualWrite(V5,String(data.temperature, 2));
  lcd.setCursor ( 0, 0 );
  lcd.print ( "Temp: " );
  lcd.print ( String(data.temperature, 2)+ "°C");
  lcd.setCursor ( 0, 1 );
  lcd.print ( "Humidity:" );
  lcd.print ( String(data.humidity, 1) + "%");
  
  delay(2000); 
}
void loop() {
  Blynk.run();
  timer.run();
  DHT_sensor();
  
}