RFID Lock Shield

RFID Lock Shield description:

This shield allows your Arduino to control a door lock using an electric strike plate and one of a number of commonly-available RFID modules, and is based on the circuit described in the “RFID Access Control System” project in the book “Practical Arduino”.
Supported modules include:

  • ID12
  • ID20
  • RDM630
  • RDM880
  • HF MultiTag

RFID Lock Shield

RFID Lock Shield specification:

  • On-board 9V regulator to power Arduino from strike plate power supply.
  • Reset button wired through to Arduino reset pin.
  • Blue “Arduino power on” LED.
  • Green “External power supply on” LED.
  • Red “Strike plate activated” LED.
  • 100nF bypass/smoothing capacitors on 5V and 9V rails.
  • Overlay guide where you need it: both top and bottom.
  • Uses through-hole parts for easy assembly.

RFID Lock Shield pinout:

RFID Lock ShieldNote:
D4: RX from RFID module.
D5: TX to RFID module.
D6: Output to strike plate.
D7: Output to status LEDs.


For more detail: RFID Lock Shield

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