#define BLYNK_TEMPLATE_ID "TMPL3FgILm1Sb"
#define BLYNK_TEMPLATE_NAME "Home Automation"
#define BLYNK_AUTH_TOKEN "H6W7JHSxM0yC9GL7RSvw48XVMuqHsU-G"

#define BLYNK_PRINT Serial
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);
char auth[] = BLYNK_AUTH_TOKEN;

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

BlynkTimer timer;

#define button1_pin 26


#define relay1_pin 13

int relay1_state = 0;


#define button1_vpin    V1

//#define PIR 25      //D5 PIR Motion Sensor


BLYNK_CONNECTED()
{
  Blynk.syncVirtual(button1_vpin);
  
}

BLYNK_WRITE(button1_vpin) 
{
  relay1_state = param.asInt();
  digitalWrite(relay1_pin, relay1_state);
}




void setup()
{
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");
  Serial.begin(115200);
  pinMode(25, INPUT_PULLUP);
  pinMode(button1_pin, INPUT_PULLUP);
  
 
  pinMode(relay1_pin, OUTPUT);
  
  digitalWrite(relay1_pin, HIGH);
  
  Blynk.begin(auth, ssid, pass);
  
  

}

void loop()
 
{
  Blynk.run();
  timer.run();
  listen_push_buttons();
}
 
 



void listen_push_buttons()
{
    if(digitalRead(button1_pin) == LOW){
      delay(200);
      control_relay(1);
      Blynk.virtualWrite(button1_vpin, relay1_state); //update button state
    }
    
}

void control_relay(int relay)
{
  if(relay == 1){
    relay1_state = !relay1_state;
    digitalWrite(relay1_pin, relay1_state);
    Serial.print("Light = ");
    Serial.println(relay1_state);
    LCD.setCursor(0, 1);
    LCD.println("LIGHT :");
    LCD.println(relay1_state);

    delay(50);
  }
  

}