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Today's Topics:
1. Re: Recording Skip ([email protected])
2. Re: Recording Skip (Barry Martin)
----------------------------------------------------------------------
Message: 1
Date: Thu, 24 Apr 2025 14:52:37 -0700
From: <[email protected]>
To: Barry Martin <[email protected]>
Cc: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Recording Skip
Message-ID: <[email protected]>
Content-Type: text/plain; charset=UTF-8
On Thu, 24 Apr 2025 15:21:11 -0500
Barry Martin <[email protected]> wrote:
> Now here comes the part I'm uncertain of.? Can I use a PoE
> (extension) but (temporarily) still power the Pi's with their wall
> warts??
I believe you can use either or. That is, you can have the PoE hat
connected to only the pi and not ethernet while powering the pi over
its usb power port. One power source at a time only.
> The key word in my question (though I might be running in to a power
> limit too) is can I plug the two Motion Pi's in to the PoE extension
> while still using the wall warts??
no, from the PoE+ Hat documentation (
https://datasheets.raspberrypi.com/poe/poe-plus-hat-product-brief.pdf )
"When the Raspberry Pi PoE+ HAT is connected to your Raspberry Pi, your
Raspberry Pi should only be powered through the ethernet cable. Do not
use any additional method to power the Raspberry Pi"
There are redundant ways of powering the pi's over USB that people have
come up with, I suggest exploring that route.
------------------------------
Message: 2
Date: Thu, 24 Apr 2025 18:15:51 -0500
From: Barry Martin <[email protected]>
To: [email protected]
Cc: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Recording Skip
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
>> Now here comes the part I'm uncertain of.? Can I use a PoE
>> (extension) but (temporarily) still power the Pi's with their wall
>> warts?
> I believe you can use either or. That is, you can have the PoE hat
> connected to only the pi and not ethernet while powering the pi over
> its usb power port. One power source at a time only.
Makes sense.? The articles I've read indicated the power was sent over
unused connectors, but if those connections are unused why would the
manufacturers include them -- they want to save every tenth of a cent!!?
So my project may take a little longer to switch over but at least it
won't include a fire extinguisher!
>> The key word in my question (though I might be running in to a power
>> limit too) is can I plug the two Motion Pi's in to the PoE extension
>> while still using the wall warts?
> no, from the PoE+ Hat documentation (
> https://datasheets.raspberrypi.com/poe/poe-plus-hat-product-brief.pdf )
>
> "When the Raspberry Pi PoE+ HAT is connected to your Raspberry Pi, your
> Raspberry Pi should only be powered through the ethernet cable. Do not
> use any additional method to power the Raspberry Pi"
Very clear!??? Will download and read the datasheet.
> There are redundant ways of powering the pi's over USB that people have
> come up with, I suggest exploring that route.
I think I'll leave those alone! :)?? UPSs power the computers and the
PoE Injector.? Generator kicks in as necessary.? Enough redundancy for
me! <g>
Thanks for the precise answer!
Barry
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