StormShearon
Posts: 2
Joined: Sun Nov 10, 2019 10:23 pm

Providing power to pi 0 W outdoors

Sun Nov 10, 2019 11:04 pm

I am new to the raspberry pi world, and am working on an outdoor security camera system using pi 0 Ws running motioneyeos. To provide power I was thinking of using a landscape light transformer with a 12 volt to 5 volt DC-DC converter connected to the landscape wiring to power each pi 0 W ( something like this - 12V to 5V 3A Step-Down Waterproof Miniature DC-DC Converter Power Supply Module - found on amazon). So I thought I would ask folks here if they thought this would work or not?

Thanks for responses (also any options\criticism).

deepo
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Location: Denmark

Re: Providing power to pi 0 W outdoors

Mon Nov 11, 2019 7:54 am

That should work fine.
I have a similar solution running on a 12V lead acid battery.

/Mogens

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davidcoton
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Re: Providing power to pi 0 W outdoors

Mon Nov 11, 2019 10:52 pm

Make sure the lighting supply is DC not AC. If AC you will need a rectifier and smoothing capacitor. This will produce DC close to the peak AC voltage, check that it is still within the converter's input voltage spec.
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Gavinmc42
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Re: Providing power to pi 0 W outdoors

Tue Nov 12, 2019 2:18 am

Got one running like that, other Pi B's using cheap POE setup.
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StormShearon
Posts: 2
Joined: Sun Nov 10, 2019 10:23 pm

Re: Providing power to pi 0 W outdoors

Thu Feb 13, 2020 12:48 am

Just thought I would post an update to this post now that I have the camera up and running. As it turns out, the low voltage transformer for my landscape lights was indeed AC. So, I purchased a Pyramind DC bench power supply from amazon that has worked out very well. So far I have just the one camera and IR flood light running, but it is all working as expected.

Now if I can just get the motion detection in motioneyeos working as well as I want, I will be a happy camper. THe Pi 0W and the 12 volt to 5 volt DC converter are working really well. The power used is very small, and the two boards don't generate much heat in the enclosure they are in (runs max 80 F).

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