#define BLYNK_TEMPLATE_ID "TMPL3jcwl5geI"
#define BLYNK_TEMPLATE_NAME "HOME AUTOMATON"
#define BLYNK_AUTH_TOKEN "UwLr23dHZ85ghN_UeyctoLo4WJcgsKAM"
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
BlynkTimer timer;
#define button1_pin 26
#define button2_pin 25
#define button3_pin 33
#define button4_pin 32
#define relay1_pin  13
#define relay2_pin  12
#define relay3_pin  14
#define relay4_pin  27
int relay1_state = 0;
int relay2_state = 0;
int relay3_state = 0;
int relay4_state = 0;
#define button1_vpin V1
#define button2_vpin V2
#define button3_vpin V3
#define button4_vpin V4
BLYNK_CONNECTED(){
  Blynk.syncVirtual(button1_vpin);
  Blynk.syncVirtual(button2_vpin);
  Blynk.syncVirtual(button3_vpin);
  Blynk.syncVirtual(button4_vpin);
}
BLYNK_WRITE(button1_vpin){
  relay1_state = param.asInt();
  digitalWrite(relay1_pin, relay1_state);
  }
BLYNK_WRITE(button2_vpin){
  relay2_state = param.asInt();
  digitalWrite(relay2_pin, relay2_state);
  }
BLYNK_WRITE(button3_vpin){
  relay1_state = param.asInt();
  digitalWrite(relay1_pin, relay1_state);
  }
  BLYNK_WRITE(button4_vpin){
  relay4_state = param.asInt();
  digitalWrite(relay4_pin, relay4_state);
  }
void setup(){
  Serial.begin(115200);
  pinMode(button1_pin,INPUT_PULLUP);
  pinMode(button2_pin,INPUT_PULLUP);
  pinMode(button3_pin,INPUT_PULLUP);
  pinMode(button4_pin,INPUT_PULLUP);
  pinMode(relay1_pin, OUTPUT);
  pinMode(relay2_pin, OUTPUT);
  pinMode(relay3_pin, OUTPUT);
  pinMode(relay4_pin, OUTPUT);
  digitalWrite(relay1_pin, HIGH);
  digitalWrite(relay2_pin, HIGH);
  digitalWrite(relay3_pin, HIGH);
  digitalWrite(relay4_pin, HIGH);
  Blynk.begin(auth, ssid, pass);
    }
void loop(){
  Blynk.run();
  timer.run();
  listen_push_button();
}
void listen_push_button(){
  if(digitalRead(button1_pin) == LOW){
    delay(200);
    control_relay(1);
    Blynk.virtualWrite(button1_vpin, relay1_state);
      }
    else if (digitalRead(button2_pin) == LOW){
      delay(200);
      control_relay(2);
      Blynk.virtualWrite(button2_vpin, relay2_state);
    }
    else if (digitalRead(button3_pin) == LOW){
      delay(200);
      control_relay(3);
      Blynk.virtualWrite(button3_vpin, relay3_state);
    }
    else if (digitalRead(button4_pin) == LOW){
      delay(200);
      control_relay(4);
      Blynk.virtualWrite(button4_vpin, relay4_state);
    }
}
void control_relay(int relay){
  if(relay == 1){
    digitalWrite(relay1_pin, relay1_state);
    Serial.print("Relay1 state = ");
    Serial.println("relay1_state");
    delay(50);
  }
  else if(relay == 2){
    relay2_state =! relay2_state;
    digitalWrite(relay2_pin,relay2_state);
    Serial.print("Relay2 state = ");
    Serial.println("relay2_state");
    delay(50);
  }
  else if(relay == 3){
    relay3_state =! relay3_state;
    digitalWrite(relay3_pin,relay3_state);
      Serial.print("Relay3 state = ");
      Serial.println("relay3_state");
    delay(50);
  }
  else if(relay == 4){
    relay4_state =! relay4_state;
    digitalWrite(relay4_pin, relay4_state);
     Serial.print("Relay4 state = ");
      Serial.println("relay4_state");
    delay(50);
  }
}