Tutorial ESP32 Door Lock 3in1 Fingerprint Keypad 4x3 and RFID PN532 — {link}

Digital door lock or digital door lock is a project that is in great demand by many people, and this time I will make a digital door lock that is accessed with three types of ESP32 sensors, 4x3 Keypad, Fingerprint and RFID PN532.

The solenoid door lock that I use is a digital lock module on the market for 40 thousand rupiahs, while for the driver I use a 5V DC relay module which is equipped with an optocoupler to convert 3.3V to 5V. https://youtu.be/k5RjZfjHwgc

The PN532 RFID module is an rfid module which in my opinion is better than the RC522, for some reasons I prefer to use PN532. However, if you want to use the RC522 for digital door locks, of course you can.

The function of the RFID module is to open or access the solenoid digital door lock using a registered ID card.

Fingerprint sensor or fingerprint is a sensor that can detect fingerprints. with a price of around 150 thousand rupiah you can already buy this fingerprint module.

Fingerprint function to access solenoid door lock based on id stored in fingerprint memory.

4x3 keypad are buttons arranged in a matrix to produce 4 rows and 3 columns.

4x3 keypad function to access digital lock solenoid based on pin or password.

The digital lock or door lock tutorial with keypad and rfid can be read here ESP32 Door Lock Tutorial with 4 × 3 Keypad PIN
ESP8266 Tutorial Accessing INA219 Sensor with Door Lock Load
Arduino Tutorial to Make Digital Lock with Keypad and Servo
NodeMCU ESP8266 Relay Tutorial RFID RC522 Door Lock

Purchase the component at Tokopedia.com

Tutorial ESP32 Door Lock 3in1 Fingerprint Keypad 4x3 and RFID PN532
Tutorial ESP32 Door Lock 3in1 Fingerprint Keypad 4x3 and RFID PN532

Code Digital Lock or Digital Door Lock 3in1 Arduino IDE

The code above uses ESP32 which utilizes dual cores.

Why am I using dual core?

Because the code keypad and RFID cannot be combined, so I tried activating the dual core on the ESP32.

That’s the tutorial that I shared about the 3in1 RFID digital lock print and also the 4x3 keypad as input pin or password.

Keyword

  • digital lock esp32,
  • arduino digital lock code,
  • digital door lock project,
  • digital door lock fingerprint project,
  • rfid digital door lock project,
  • digital door lock keypad,
  • arduino digital door lock,

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