When set as high-to-low triggering :

I/O port voltage

time = T

Start counting time when a high to low signal changed detected

when period of low signal reach Threshold value the AT command will be executed

* See AT+IOAT command on setting Threshold value T.

5.2AT command for configuring I/O triggered AT command

5.2.1AT+IOAT

Command Syntax

AT+IOAT=<action>(,<dir>,<Threshold>,<cmd> )

Response syntax:

+SMSAT: <action>,<dir>,<Threshold>,<cmd>

Command

Possible responses:

AT+IOAT=0

OK

 

Note : disable I/O triggered AT command execution

AT+IOAT =1

OK

 

Enable remote I/O triggered AT command execution

AT+ IOAT?

+IOAT : 1,1, 10,”AT+CMSS=5”

 

OK

 

Note display current status

AT+IOAT=2,1,10,”AT+IPR=115200”

OK

 

Note: set the parameters < dir>, <Threshold>, <cmd>

 

low-to-high triggering, Threshold=1000 ms

 

command is “AT+IPR=115200”

AT+ IOAT =?

+IOAT : (0-2),(0-1),(1-50),(128)

 

OK

 

Note : possible argument

Defined Values:

 

<action>

0disable I/O triggered AT command execution

1enable I/O triggered AT command execution

2configure I/O triggered AT command parameters

<dir>

0configure as low-to-high triggering

1configure as high-to-low triggering

Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd.

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