Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 630)

I/O Commands
Write GPIO value +WIOW
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WM_DEV_OAT_UGD_049 - 001 VOLUME 4 August 23, 2007
22.3 Write GPIO value +WIOW
22.3.1 Description
This Wavecom proprietary command sets the requested GPIO state.
This command is allowed only on an output GPIO not allocated by an Open AT ®
embedded application or by a feature.
22.3.2 Syntax
Action command
AT+WIOW=,
OK
Read command
None
Test command
AT+WIOW=?
OK
22.3.3 Parameters and Defined Values
: GPIO Index
range: 1-44
: I/O state
0 is reset/low
1 is set/high
22.3.4 Parameter storage
None.