Turn Off - Quectel BC66 Hardware Design

NOTE
PWRKEY cannot be pulled down all the time, otherwise the module will not be able to enter into Deep
Sleep.

3.7.2. Turn off

BC66 can be turned off though any of the following methods:

Power off by AT+QPOWD=0.

In emergent conditions, the module can be powered off through disconnecting VBAT power supply.

The module will be powered off automatically when VBAT drops below 2.1V.
AT+QPOWD=0
Figure 9: Power down Timing (Power off by AT Command)
Figure 10: Power down Timing (Power off by Disconnecting VBAT)
BC66_Hardware_Design
VBAT
1.02s
VDD_EXT
Module
RUNNING
Status
≥5ms
VBAT
VDD_EXT
Module
RUNNING
Status
NB-IoT Module Series
BC66 Hardware Design
OFF
OFF
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