UM1547 datasheet(21/51 Pages) STMICROELECTRONICS

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UM1547

AT command list

where [GPIO Pin] is the pin number of the desired GPIO to read. The GPIO numbering

depends on the specific HW used.

3.21.2

Responses

If the operation is successful, the response is:

AT-AB GPIOReadDone [result]

Where [result] is either a 1 to indicate high, or 0 to indicate low.

3.22

GPIOWrite

The GPIOWrite command is used to set a GPIO pin to high or low. A GPIO may only be set

when configured as an output.

3.22.1

Syntax

AT+AB GPIOWrite [GPIO Pin] [Setting]

where [GPIO Pin] is the pin number of the desired GPIO to read. The GPIO numbering

depends on the specific HW used.

[Setting] is a 1 to set a pin to high and a 0 to set a pin to low.

3.22.2

Responses

If the operation is successful, the response is:

AT-AB GPIOWriteDone

3.23

HostEvent

The HostEvent command is used to enable/disable the host notification strings. This will

override the default setting in the dynamic configuration only for the current session, until

reset.

3.23.1

Syntax

AT+AB HostEvent [Enable/Disable]

Where [Enable/Disable] is an “e” or “E” character to enable this parameter and a “d” or “D”

character to disable it.

3.23.2

Responses

If the feature is successfully enabled, the response is:

AT-AB HostEvent Enabled

If the feature is successfully disabled, there is no response because the events have been

disabled.

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