3 Application Interfaces
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command.
x=0: Wake up the module by level. The module enters wake-up mode when WAKEUP_IN is
pulled down and enters sleep mode at high level.
x=1: Wake up the module by level. The module enters wake-up mode when WAKEUP_IN is
pulled up and enters sleep mode at low level.
⚫ Software control:
Run ATS24 to make the module to enter sleep. The wakeup hold time is subject to the </value>
in the ATS24 = [<value>] command. Send the ats24=2 command. The module enters sleep
mode after 2s. The setting is not saved after the module power supply is disconnected.
Send AT command through the main serial port to wake up the module.
The hardware control module enters sleep or wake up mode through GPIO and
software configuration. By default, it is implemented on WAKEUP_IN pin.
Without WAKEUP_IN pin, DTR can also implement module sleep wakeup
function. The OPEN version is optional for any GPIO implementation.
3.4.3 PSM Mode
PSM is a power saving mode. Characteristics of terminal during non-service period in this
mode:
1. Deep sleep, not receiving downlink data;
2. Only when the terminal actively sends the uplink data, the downlink data cached by the
IOT platform can be received.
The PSM feature needs to be configured on the network. After the module enters PSM mode,
the power consumption can be reduced to 3μA.
To enter PSM, run the AT command AT+CPSMS=1. For details, see
FIibocom_MC66x_Application Guide_PSM.
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