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(X=0, WAKEUP_IN pin is high level, module enter sleep mode;
X=1, WAKEUP_IN pin is low level, module enter sleep mode)
AT+GTUSBSLEEPEN=2,X command to disable USB function (X can be 0 or 1)
AT+CSCLK=1 command to enable sleep function.
Wake up:
The level of WAKEUP_IN pin contrary with that when the module enters sleep mode, module allow be
waked up. (X=0, WAKEUP_IN pin is low level, wake up module;
X=1, WAKEUP_IN pin is high level, wake up module)
6.2.5 UART Application (DTR Pin Level Control)
When host and module connected through UART, use the following steps can make the module enter
Sleep:
Send AT+GTLPMMODE=2,X command to set the DTR set pin's level of control module enter sleep
mode. Reset module, command effective.
(X=0, DTR pin is high level, module enter sleep mode;
X=1, DTR pin is low level, module enter sleep mode)
AT+GTUSBSLEEPEN=2,X command to disable USB function (X can be 0 or 1)
AT+CSCLK = 1 command to enable sleep function.
Wake up:
The level of DTR pin contrary with that when the module enters sleep mode, module allow be wake up.
(X=0, DTR pin is low level, wake up module; X=1, DTR pin is high level, wake up module)
6.2.6 ATS24 Command
ATS24 command can also make module enter sleep mode.
Sleep:
Send AT+GTLPMMODE=0
ATS24=X command to into sleep after X seconds. (X is nonzero integer)
AT+GTUSBSLEEPEN=2,X command to disable USB function (X can be 0 or 1)
Wake up:
Send the AT command fast by UART serial port can wake up the module. If don't send AT commands
between X seconds, module will try to enter sleep mode.
Note:
Since the level of UART sleep power is different, power consumption of use ATS24 command to
enter sleep mode is higher than that use Pin control to enter sleep mode.
When ATS24 command enter sleep mode countdown, it isn't entering sleep mode once
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FIBOCOM NL668-LA Series Hardware Guide
Reset module, command effective.
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