Arduino Shield List

Freetronics RFID Lock Shield

Shield URL: RFID Lock Shield
Tags: rfid, lock, strike, control, output
Maker: Freetronics

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

• On-board 9V regulator to power Arduino from solenoid power supply.
  
• Reset button wired through to Arduino reset pin.
  
• Blue "Arduino power on" LED.
  
• Green "12V power on" LED.
  
• 100nF bypass/smoothing capacitor on supply rails.
  
• Overlay guide both top and bottom.
  
• Uses through-hole parts for easy assembly.

Open Source: Yes, OSHW-compliant
License: TAPR Open Hardware License
Source: github.com/freetronics/RFIDLockShield

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