Author Topic: PI Hat Power options?  (Read 429 times)

Offline Kev7274

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PI Hat Power options?
« on: March 09, 2018, 08:17:45 PM »
Need some advice on how to go about powering the Pi Hat.

I'm only using this Hat to run 10 pixels that is used to light up a Tune To Sign globe.
I'm going to put it inside the enclosure that has the P10 panel that run the Tune To Sign,the sign is only 2x1,so it's a small enclosure. Here's my dilemma.....
Since I have the 5V PS running the P10 panels and the Pi Hat is going to run the 12v pixels in the globe, I can't use the 5v PS to power the Hat also.

Should I just get a buck converter that will either take 110v and down it to 12v or get a back converter that will take the 5v and up it to 12v? I have a wall wart that is 12v 1a,but I'm not sure if it have enough power to run the Hat and the Pi. Is 1A not enough,ok since there is only 10 pixels,etc?

Let me know what you think and/or other suggestions that would work.

Offline jnealand

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Re: PI Hat Power options?
« Reply #1 on: March 10, 2018, 07:24:02 AM »
Just buy some 5v pixels.  If you only want 10 ask in the buy/sell area of the forum.
Jim Nealand
Kennesaw, GA
Falcon and Lynx, all 12v
Multisync with Pi and BBB
P10 and P5

Offline Kev7274

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Re: PI Hat Power options?
« Reply #2 on: March 10, 2018, 08:08:37 AM »
Dont want to use 5v or I would have already

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Offline Cjaqua

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Re: PI Hat Power options?
« Reply #3 on: March 10, 2018, 08:18:45 AM »
I would use a 12V power supply and a 12V to 5V buck converter to power the 5V devices.

Offline Ebuechner

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Re: PI Hat Power options?
« Reply #4 on: March 10, 2018, 08:53:22 AM »
I have a p 10 panel tune to sign that is this exact setup.
In my case I just used a small waterproof 45 watt 12 volt power supply just for the Globes mounted inside the panel.
But instead of using a pi hat to run the Globes I use an ESPixelstick.
https://drive.google.com/file/d/0BwDgEpqsgNhfUnhVa3RNbmtEVUE/view?usp=drivesdk

Offline Kev7274

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Re: PI Hat Power options?
« Reply #5 on: March 10, 2018, 01:46:00 PM »
I would use a 12V power supply and a 12V to 5V buck converter to power the 5V devices.
Didnt think of that.I have a few of those lying around. I would need to have each panel running off a converter or just use a pwr distribution board that only has 5v going to it from a converter. Thanks

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« Last Edit: March 10, 2018, 01:54:57 PM by Kev7274 »

Offline Kev7274

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Re: PI Hat Power options?
« Reply #6 on: March 10, 2018, 01:46:31 PM »
I have a p 10 panel tune to sign that is this exact setup.
In my case I just used a small waterproof 45 watt 12 volt power supply just for the Globes mounted inside the panel.
But instead of using a pi hat to run the Globes I use an ESPixelstick.
https://drive.google.com/file/d/0BwDgEpqsgNhfUnhVa3RNbmtEVUE/view?usp=drivesdk
Good idea.Thanks

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Offline skyjumpr

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Re: PI Hat Power options?
« Reply #7 on: March 13, 2018, 06:13:35 PM »
Kind of the same set up here. 5 volt pixels on the pole for my tune too sign and 12 volt modules for the globe. Question is, can I run 5 volt off one output of pi hat and 12 volt off the other as long as I only connect the data wire to the pi hat for the 12 volt? And have the V- connections common from the power supplies?

Offline JonB256

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Re: PI Hat Power options?
« Reply #8 on: March 14, 2018, 06:56:23 AM »
Kind of the same set up here. 5 volt pixels on the pole for my tune too sign and 12 volt modules for the globe. Question is, can I run 5 volt off one output of pi hat and 12 volt off the other as long as I only connect the data wire to the pi hat for the 12 volt? And have the V- connections common from the power supplies?

Yes. Keep the 12v+ away but make sure all the DC grounds (V-) are tied together.

Offline bpos

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Re: PI Hat Power options?
« Reply #9 on: March 25, 2018, 10:45:55 AM »


Should I just get a buck converter that will either take 110v and down it to 12v or get a back converter that will take the 5v and up it to 12v? I have a wall wart that is 12v 1a,but I'm not sure if it have enough power to run the Hat and the Pi. Is 1A not enough,ok since there is only 10 pixels,etc?

Let me know what you think and/or other suggestions that would work.

Since its only a few pixels. You might be able to get away with running a straight up 12v battery (LifE,Lipo,Nicad etc..).  Battery will suck down quick on a large pixel count but just a few might be ok?

 

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