HE910 Hardware User Guide
1VV0300925 Rev. 32
Page
35
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111
2019-11-25
Turning OFF the HE910
Turning off of the device can be done in two ways:
•
via AR command (see HE910 Software User Guide, AT#SHDN)
•
by tying low pin ON_OFF*
Either ways, the device issues a detach request to network informing that the device will
not be reachable any more.
To turn OFF the HE910 the pad ON_OFF* must be tied low for at least 3 seconds and
then released.
TIP:
To check if the device has been powered off, the hardware line
PWRMON must be monitored. The device is powered off when
PWRMON goes low
NOTE:
In order to avoid a back powering effect it is recommended to avoid
having any HIGH logic level signal applied to the digital pins of the
HE910 when the module is powered off or during an ON/OFF
transition.
Содержание HE910
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