This document provides instructions for connecting an RFID reader to an Arduino board. The Arduino's transmit pin connects to the RFID reader's receive pin, grounds are shared, digital pin 2 on the Arduino is connected to the RFID reader's enable pin to power it, and the RFID reader's power input connects to the Arduino's +5 volt supply.

1. RFID

2.  ARDUINO RX TO TX OF RFID.
 GND TO GND
 ARDUINO DIGITAL PIN 2 TO ENABLE
 +5 VOLT TO VCC.