MeiG
Product
Manual
of
SLM750
Module
SLM750
Module
Hardware
Design
Page 38, total 84 pages
then the module will perform the shutdown process. The shutdown sequence is shown in the
following figure:
Figure 10 Timing of turning off module
3.7.2.2 AT command shutdown
The AT + Poweroff command can be used to control the shutdown of module. This shutdown
process is equivalent to a pulled-down PWRKEY pin shutdown process.
NOTES: 1. When the module works properly, do not immediately cut off the module power to
avoid damage to the module internal Flash data. It is strongly recommended to turn off the module
by using the PWRKEY or AT command before disconnecting the power.
2. When using the AT command to shut down, make sure that the PWRKEY is always in a
high level state after the shutdown command execution, otherwise the module will automatically
boot again after shutdown.
3.8 Reset the Module
Hardware and AT command can be used to reset SLM750.
