User Manual

1 - dummy value

 wait for response OK

The #GPIO setting for all GPIO except from GPIO6 is not saved and will be lost on power

off, so at start-up repeat pin initialization commands.

At start-up all the GPIOs except from GPIO6 are configured by default as INPUT, but the

setting for GPIO6 instead is maintained even after a shutdown to permit alarm feature to work

always.

For example:

1- Let us assume you want to set GPIO4 pin as Input:

command

AT#GPIO=4,0,0<cr>

response:

In this case, the GPIO4 pin was successfully put in input direction.

After having set-up the GPIO pin direction you can query the input status of an INPUT pin or

set the output status of an OUTPUT pin.

To query for the pin status:

 send command AT#GPIO=<pin>,2<cr>

where:

<pin> is the GPIO pin number at which the command applies:

1 - GPIO1 6 - GPIO6

2 - GPIO2 7 - GPIO7

3 - GPIO3 8 - GPIO8

4 - GPIO4 9 - GPIO9

5 - GPIO5 10 - GPIO10

 wait for response in the format:

#GPIO: <dir>,<stat>

where: