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ThingMagic Mercury xPRESS Platform v1.7 User Manual

Page 47

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WiFi Module

A D I V I S I O N O F T R I M B L E

Using the Optional Modules

47



If the Bluetooth module is present, check for BLUETOOTH_DEVNAME and

comment out “

#define ENABLE_OUTPUT_BT



If the GPS module is present, check for GPS_DEVNAME and comment out

#define confINCLUDE_GPS

”. Because the GPS module does not interfer

with the WiFi module’s use as a data interface, you may want to keep it
enabled to augment tag-read information with GPS information.

The LED displays on the module indicate the following states for the module:



Green LED D1 is on when there is a connection to an access point



Yellow LED D2 flashes whenever the xPRESS platform communicates with the

module.



Red LED D3 is on when there is a TCP connection through which tag information can

be transferred.

Information about the network connection can be obtained through the console interface
by entering the command: wifly-get-net-info

Typical output is shown here (for the WiFi module acting as a TCP client):

**************************

WIFLY: Network Info ******

**************************

IF=UP

DHCP=ON

IP=192.168.11.54:49152

NM=255.255.255.0

GW=192.168.11.1

HOST=10.8.80.79:7777

PROTO=TCP,