Posts by hinufe

Quote from Phade

Hey Everyone!

I'm at the final stages of my current install and I'm always thinking of how I could make things better next time. My TV setup uses a single 16ft strip of 5V LEDs. However, my friend has a TV that would need two strips of 16ft LEDs. For his, I am considering suggesting 12V LED strips. But, that got me thinking about the power supply and needing both a 12V source for the LEDs and a 5V source for the Raspberry Pi controller.

Could I use a regular PC power supply for that setup?

I know PC power supplies have both 5V and 12V outputs, are well grounded, and are generally higher quality compared to the typical generic barrel-jack power supply. I suspect the answer could be one or more of:

Yes, this is a well-known solution used by many. [see threads/tutorials here]
No, this is not a good idea for [reasons].
Why has nobody suggested this before? It's a great idea!

My brain was going and I needed someone to check my sanity here.

Thanks for your help!!

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Yes, totally valid and better than most generic supplies. PC power supplies give you clean regulated 5V and 12V simultaneously, are properly grounded, and overcurrent protected. Two things to know. First, short the green wire to any black wire on the 24 pin connector to turn it on without a motherboard. Second, add a small dummy load resistor on the 12V rail, around 10 ohm 10W, to keep it stable under light loads. Use a decent brand like Seasonic or Corsair even a budget one and you will be fine.

Quote from stiray

Has anyone tried to mount LED stripe within 45 degree aluminium profile?

I was thinking a bit about how to mount the LEDs behind the TV. If just glued to the back of TV, half of the light is lost (by illuminating behind the TV), while the alu profile would direct the light out.

What I am a bit worried is that the LEDs would form light spots on the wall, which can be then fixed with light dispersing plastic front.

The profiles are around 6 euros / meter so the expense is not really relevant.

Something like this:

Also as much as I know about LEDs, they need some form of cooling and typically they are mounted into aluminium profiles that are also working as a heat sink.

Frame Aluminum Profiles
Is this a good idea or maybe a bad one?

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Mounting LED strips in a 45-degree aluminum profile is a good idea. It will direct the light outward, reducing wasted light behind the TV, and the frosted or diffusing cover will minimize visible hotspots. The aluminum also acts as a heat sink, which helps LED longevity. At 6 €/m, it’s a reasonable investment. Just ensure the LEDs are fully adhered to the profile for proper cooling and that the profile is securely mounted. This setup should give a cleaner, more uniform backlighting effect compared to sticking the LEDs directly on the TV.

Hyperion runs as a service on Armbian, so SSH into the LePotato as usual using its IP. Check that SSH is enabled (sudo systemctl status ssh) and running on the correct port. If you meant SSH into Hyperion itself, that’s unnecessary—manage it via the web GUI or terminal commands. Good luck with the LED setup!