Kegbot/kegboard — pull request #9 by rawdigits (2013-07-22 01:15:26+00:00)
Title: Added support for Parallax 28440 RFID reader.

Parallax 28440 RFID reader support.

Notes:
Uses Pin 3 for TX to reader, so second flowmeter is disabled when in use.
Supports either new Read-Write tags or older Read-Only tags. (attempted to support both, but rapidly switching between modes produced inconsistent results.