Rfid Based Door Lock Using Esp8266 And Blink App

Just Do Electronics April 20, 2020

ESP8266 RFID Based Remote Access Door Lock

Circuit Diagram :-

App :-

Code :-

 
//Prateek
//www.prateeks.in
 
#include <SPI.h>
#include <MFRC522.h>
#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
 
#define SS_PIN 4  
#define RST_PIN 2
 
int elock = D0;    
 
MFRC522 mfrc522(RST_PIN, SS_PIN);      
char auth[] ="BvnkNlDDxM1NdUmq0PfAeZLUwa8o85Mx";
 
char ssid[] = "singh";
char pass[] = "pratik123";
 
SimpleTimer timer;
int fflag = 0; 
int eflag = 0; 
int jflag = 0; 
WidgetTerminal terminal(V2);
 
void setup() {
        Serial.begin(9600);        
        Blynk.begin(auth, ssid, pass);
      pinMode(elock,OUTPUT);
      digitalWrite(elock, LOW);
        SPI.begin();                
        mfrc522.PCD_Init();        
          timer.setInterval(1000L, iot_rfid);
}
 
void loop() {
        
  timer.run(); 
  Blynk.run();
 
       
}
 
void iot_rfid()
{
 
        
        MFRC522::MIFARE_Key key;
        for (byte i = 0; i < 6; i++) {
                key.keyByte[i] = 0xFF;
        }
    
        if ( ! mfrc522.PICC_IsNewCardPresent()) {
                return;
        }
 
 
        if ( ! mfrc522.PICC_ReadCardSerial()) {
                return;
        }

       
        Serial.print("Card UID:");
        for (byte i = 0; i < mfrc522.uid.size; i++) {
               Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
               Serial.print(mfrc522.uid.uidByte[i], DEC);
        } 
        Serial.println();
 

        byte piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);

        if (        piccType != MFRC522::PICC_TYPE_MIFARE_MINI 
                &&        piccType != MFRC522::PICC_TYPE_MIFARE_1K
                &&        piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
               
                return;
        }

        
        if( ((mfrc522.uid.uidByte[0] == 9) && (mfrc522.uid.uidByte[1] == 191) && (mfrc522.uid.uidByte[2] == 233) && (mfrc522.uid.uidByte[3] == 212)) && (fflag == 1) )
        {
         Serial.println("Pratek");
         Blynk.virtualWrite(V2, "Prateek" );
         digitalWrite(elock, HIGH); 
         delay(10000); 
         digitalWrite(elock, LOW); 
        }
  
        else
        if(( (mfrc522.uid.uidByte[0] == 108) && (mfrc522.uid.uidByte[1] == 159) && (mfrc522.uid.uidByte[2] == 37) && (mfrc522.uid.uidByte[3] == 217))&& (eflag == 1) )
        {
         Serial.println("Singh"); 
         Blynk.virtualWrite(V2, "Singh" );
         digitalWrite(elock, HIGH); 
         delay(5000); 
         digitalWrite(elock, LOW); 
        }
        else 
        Serial.println("unregistered user");
  
}
 

BLYNK_WRITE(V3)
{
   fflag = param.asInt(); // assigning incoming value from pin V3 to a variable
  
 
}
 
 

BLYNK_WRITE(V4)
{
   eflag = param.asInt(); // assigning incoming value from pin V4 to a variable
 
}

0 Comments