RFID Card Reader, Serial (#28140); USB (#28330)

Copyright © Parallax Inc. RFID Card Reader Serial & USB (#28140 / 28340) v2.2 3/22/2010 Page 4 of 11 Usage A visual indication of the state of the RFID Card Reader is given with the on-board LED. When the module is successfully powered-up and is in an idl

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