Beiträge von danbutter

I'm kinda in the same boat waiting for someone more knowledgeable to answer about the capture stuff as I posted a similar thread last week.
I can however comment on a couple of your points.
If you have a choice I would go with 12 volt strips just due to Ohm's law. You can push further with higher voltage so you can get away with fewer power injection points. The PSU should have a label on the side that tells you how many amps it can provide on each rail....Like for 5v +, 12v + and so on.

This is what you need to look at to be able to tell, but I have some very old 300w PSUs that say they can give 20 amps on the 5v+ rail so you are most likely ok there. Rule of thumb I go by is never go past 80% of what is rated.
So doing some quick math and looking at the 2815 strip (12v) you linked we have it rated for Power: 34.5 watt/meter, 172.5 watt/16.4ft
So lets round to 175 watts which at 12 volts gives us just under 15 amps DC. 16 is 80% of 20 so I wouldn't use a power supply that can give less than 20 amps DC on the 12volt+ rail.
This is with 144 leds/meter though. Your choice of course, but you probably don't need that density for a nice ambient display. The power budget would be much less with less leds (duh, I know) and so would the price.

Keep us updated with your build. I'm interested to see how it goes as I'm still trying to buy (working) components for mine.

Well first of all I love the software. I have been going to do the TV backlight for years, but being that my AV equipment is in another room and getting new cabling through the walls and ceiling for everything is kinda daunting. This plus being very busy...well it didn't get done.
So now that I see you can use WLED I'm thinking I could get this done now!
So my setup is I have a Denon AV Receiver with 2 HDMI out and I planned to use the 2nd output to go into a HDMI to composite converter box and then into an easycap device which will then plug into a chromebox running libreelec via USB.

So I got hyperion ng installed on the chromebox running libreelec thanks to this forum. I can get to the webpage and do the config. I have a WLED with a test led ring and it reacts to what is played.
Problem is that it doesn't seem to see my USB grabber.
Even though I have platform capture unchecked and Enable USB capture checked all I get is what is actually playing on the libreelec box.
So I SSH'd into the libreelec box and ran lsusb and got this: Bus 001 Device 004: ID 1c88:1001 Somagic, Inc.
It was advertised as the UTV007, but obviously wasn't.
I'm new to all this and just picking pieces of code from the forum here, but ran this:

LibreELEC:~ # v4l2-ctl --list-devices
Failed to open /dev/video0: No such file or directory

I'm assuming this just isn't compatible. I tried the same on a PI3B+ and got

Cannot open device /dev/video0, exiting.

Any thoughts of some compatible hardware I could get to go between my Denon and chromebox?

Thanks

There are some ESP32 units with ethernet and WLED has ethernet support.
This could be one way to avoid the wifi.