Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 622)

I/O Commands
Input/Output Management +WIOM
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WM_DEV_OAT_UGD_049 - 001 VOLUME 4 August 23, 2007
22 I/O Commands
22.1 Input/Output Management +WIOM
22.1.1 Description
This Wavecom proprietary command allows to set the default GPIOs configuration
(input or output) after reset, and each GPIO default value (if set as an output) after
reset.
22.1.2 Syntax
Action command
AT+WIOM=<Gpiold>,<GpioDir>[,<GpioVal>]
OK
Read command
AT+WIOM?
+WIOM: <Gpiold>,<GpioDir>[,<GpioVal>]
[+WIOM: <Gpiold>,<GpioDir>[,<GpioVal>][...]]
OK
Test command
AT+WIOM=?
+WIOM: (list of supported <Gpiold>s),(list of supported
<GpioDir>s),(list of supported <GpioVal>s)
OK