Multi-Tech Systems MMCModem GPRS (MTMMC-G) - Manual (Page 114)

Chapter 13 – Specific AT Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 114
Read GPIO Value +WIOR
Description: Read the requested GPI or GPIO pin value.
Notes:
• By default (e.g., after a reset), the I/O ports configuration is set by the +WIOM command.
•
This command is allowed only on a GPIO not allocated by an Open-AT embedded application or
for bus operations.
• When the BT chip is switched on, the GPIO5 is not available anymore.
Values:
Up to ten I/O ports are available. The value is between 0 and 9.
0 I/O port number is reset.
1 I/O port number is set.
Syntax: Command syntax: AT+WIOR=
Response syntax: +WIOR:
Command Possible responses
AT+WIOR=0
Read I/O (number 0) value +WIOR: 0
OK
GPIO number 0 is reset
Write GPIO Value +WIOW
Description: Set the requested GPO or GPIO pin value.
Notes:
•
By default (e.g., after a reset), the I/O ports configuration is set by the +WIOM command.
• This command is allowed only on a GPIO not allocated by an Open-AT embedded application or
for bus operations.
• When the BT chip is switched on, the GPIO5 is not available anymore. It is not possible to
change the state of the GPIO using this command.
Values:
Up to ten I/O ports are available. The value is between 0 and 9.
0 I/O port number is reset.
1 I/O port number is set.
Syntax: Command syntax: AT+WIOW=,
Command Possible responses
AT+WIOW=2,0
Reset I/O (number 2) OK
GPIO value is written