ThingMagic USB Plus+ RFID Reader User Manual
Page 9
Reading Tags
A D I V I S I O N O F T R I M B L E
USB Plus+ RFID Reader Setup Guide
9
LEDs are “High” when on, “Low” when off.
Button/LED to GPIO Line Mapping
Note
In the first shipment of USB Desktop Readers the Button/LED to GPIO line
mappings were reversed. Button1=Input2, Button2=Input1, LED1=Output2
and LED2=Output1. If the Thingmagic logo is at the top of the label you have
the old label and need to following the old mapping.
Note
The buttons are level sensed and not edge sensed, that is, there is no
memory of the button having been pushed. If a button is pushed
momentarily during a time the application is not checking the state of the
Input GPIO lines, the button press will not be detected. For that reason, it is
recommended applications require the user to push a button until the
software senses it and illuminates one of the LEDs. This ensure that the
press has been detected.
Button/LED
GPIO Line
Button 1 (Yellow)
Input 1
Button 2 (Red)
Input 2
LED 1 (Yellow)
Output 1
LED 2 (Red)
Output 2