RFID Door Lock

Parts list

Reading the card

• Mifare RC522 RF IC Card Sensor Module amazon link
• ESP32 Development Board amazon link
• RFID capable card (the above RFID Sensor amazon link includes with purchase)

Powering the door lock

• IRLZ44N Power Mosfet amazon link
• 10k Ohm 1/2 W through hole Resistor

The button for adding a card

• 5mm LED Light Diodes
• 220 Ohm 1/2 W through hole Resistor
• Breadboard button

Running the Server

Arduino IDE - Board

• Go to tools > board manager and search for esp32
• Install esp32 by Espressif Systems, specifically version 3.1.0
• Set the board in tools as ESP32-WROOM-DA Module

Arduino IDE - Library

• Go to tools > library, install MFRC522 by Github Community, version 1.4.11

Code

• change the API KEY from NOTHING_REALLY to the key used by the card verification server
• change the ssid and password variables to the appropriate values of the network that we need to connect to
• (optional) if the code does not compile, consider following miguelbalboa/rfid#371