Connection status, Power management, Connection status power management – ThingMagic Mercury xPRESS Platform v1.7 User Manual

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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

Connection Status

RN-171 uses GPIO pins to monitor the status of association/connection and to control the
connection as below.

xPRESS Reader uses GPIO4 and GPIO6 pins to monitor the status of association and
connection in function WIFLY_MonitorWiflyStatus() which will be called by the task
task_Wedge.

Note

GPIO5 is not used as this pin is NC on xPRESS Reader

Power Management

RN-171 has the power features shown below:

Signal Name

Direction

Function

GPIO4

Output

This pin goes high after the module has associated/authenticated and has
an IP address.

GPIO5

Input

Set this pin high to trigger a TCP connection and low to disconnect.

GPIO6

Output

This pin goes high when the module is connected over TCP and low
when disconnected.