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Using ID-12 RFID Reader

Sparkfun ID-12 (or ID-20) RFID Reader

Wiring

  • ID-12 GND (pin 1) to Arduino GND
  • ID-12 /RST (pin2) to Arduino +5V
  • ID-12 5V (pin 11) to Arduino +5V
  • ID-12 D0 (pin 9) to Arduino RX (pin 0)
  • ID-12 FS (pin 7) to Arduino GND
NOTE: Disconnect the ID-12 D0 -> RX line in order to upload a program to the Arduino. Reconnect it when using the RFID reader. Alternatively, use Software Serial to communicate with the ID-12 on pins other than Arduino RX/TX.

Code

RFID_ID12.zip