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MightyHat
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MightyHat sense power outage
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Topic: MightyHat sense power outage (Read 9126 times)
Lukapple
Full Member
Posts: 202
MightyHat sense power outage
«
on:
November 08, 2019, 10:06:56 AM »
I'm running RPI4 with MightyHat and battery backup.
Is there any way to detect power outage?
I want to create a dummy gateway node, which will log power outage events.
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Felix
Administrator
Hero Member
Posts: 6866
Country:
Re: MightyHat sense power outage
«
Reply #1 on:
November 11, 2019, 09:00:19 AM »
Luka,
If you
look at the schematic
, there is a battery monitor on A7, which reads VUSB or VBAT. When power is lost the reading should be around 4.2v or lower. When on USB it should be higher than that.
Please
also see this thread
where this is also discussed how to make the difference between different power input.
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Lukapple
Full Member
Posts: 202
Re: MightyHat sense power outage
«
Reply #2 on:
November 11, 2019, 09:02:40 AM »
Thanks for the hint Felix. I’ll check out that post.
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MightyHat sense power outage