Posts by D34DC3N73R

    I would guess that you may need a logic level shifter, given the length of the data cable.

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    Unfortunately, I'm not sure about ST since I've never worked with it. But, depending on your media source, I can think of a couple of easy automations in home assistant that would work.


    About the LEDs,

    • How many LEDs and what type?
    • What is your power supply?
    • Can you make a diagram of your wiring?
    • How long is your data wire?
    • What version of Hyperion are you running?
    • What type of capture card are you using?
    • Do you see any flashing in the LED visualization preview?

    Assuming your wiring and everything else is good, I've heard of problems when using the pins on a pi with certain LEDs, but I'm not familiar enough with the problem to give solid advice. There may be a command you need to run, and/or use a level shifter to boost the data signal. I use an arduino nano clone with a pi4b and ws2812b LEDs which work amazingly well.

    I'm not exactly sure what you mean by toggle the lights from USB capture, but you can use signal detection on the USB source.

    • Signal Detection: If enabled, usb capture will be temporarily disabled when no signal was found. This will happen when the picture fall below the threshold value for a period of 4 seconds.

    Also, you can send commands formatted in json to do things like change the lights to a solid color, or start an effect.


    For instance, this will turn the lights red for 10 seconds

    curl "http://HYPERION-IP:PORT/json-rpc" -X POST -d "{\"command\":\"color\", \"color\":[255,0,0], \"priority\":1, \"duration\":10000, \"origin\":\"Hyperion JSON\"}"


    If you don't set a duration, it will be infinite until you issue a clear command

    curl "http://HYPERION-IP:PORT/json-rpc" -X POST -d "{\"command\":\"clear\", \"priority\":1}"


    You could set those up as shell commands in HA and then use the shell_command service in automations.


    You can see all the options here: https://docs.hyperion-project.org/en/json/Control.html

    It depends on how many LEDs you want to run. For instance, each WS2812B LED can draw a max of 0.06A. So even 150 LEDs could draw up to 9 amps. If you figure out a rough estimate on how many (and what type of) LEDs you'll have, you'll be able to get a better idea of what power supply you should be looking at.

    I have an RPi4B 2GB and it seems to be working fine, but it's an earlier revision.


    pi@raspberrypi:~ $ grep MemTotal /proc/meminfo

    MemTotal: 1911324 kB

    pi@raspberrypi:~ $ cat /sys/firmware/devicetree/base/model

    Raspberry Pi 4 Model B Rev 1.2

    Paulchen-Panther Nice! I like the paint. Interesting to see the LEDs mounted on the wall as opposed to the TV. While I like them mounted on my TV since it's a full-motion swivel bracket, I definitely see the appeal of having them mounted directly to the wall.

    Edit: or is that a projector set up?

    The project turned out well. I ended up going with a 30 amp power supply, 10 AWG to a busbar, 20 AWG to all four corners (2x). It's probably overkill to have the front and back of each strip powered, but no one ever accused me of cutting corners. I have 1000uf caps on the front and back of all the strips as well. Attached pics of the 85" 334 LED set up/install. Also, video, which didn't turn out super great due to the TV having a 3000 nit brightness.

    If anyone has questions about the setup, feel free to ask.

    My hardware setup is a 5m 300 LED WS2812b, rpi2, arduino nano, HDMI capture card, and I'm currently using a 5v 15a 75w power brick, 1000uf 25V capacitors soldered to the front and back of the LED strip, 330 ohm resistor on the data line. I'm powering the rpi2 and capture card from an alternate power source so the power brick is dedicated to the LEDs. I'm using 256 LEDs, so amps are technically above what my power supply can provide (16.9a vs 15a).


    I do plan on upgrading my TV to an 85" soon, so I'll likely be getting another strip to add to what I have. Planning ahead, I've bought a 5v 40a 200w power supply. I know it'll probably be overkill but I'm under the impression power supplies are more efficient when running at 60-80% capacity.


    I'd like to upgrade my current setup with the new power supply initially, with the ability to add more LEDs with the TV upgrade.


    I was planning on getting a garbage disposal power cord to connect the power supply, and using 14 AWG to some type of distribution block. At the moment, I just have power to the front and the back of the LED strip but will want 4 (or 8) out terminals to run to all corners.


    So, my questions are:

    • Will the garbage disposal plug work well for powering the power supply? Should I just cut a computer cord instead?
    • Is 14 AWG enough to run from the power supply to the distribution block? It will be about 6-8 feet. (btw can anyone recommend a good distribution/terminal block for my use case?)
    • In my current setup, what gauge of wire should I be running from the distribution block to the front and back of the LED strip? is 20 AWG enough? When I upgrade and have runs to each corner will 20 AWG be enough?
    • I do have 1000uf 25V capacitors soldered to the front and back of the strip. When I upgrade and cut strips for each side, is it necessary to have caps and power on both ends of all four strips?


    Really appreciate any feedback. This is my first Hyperion setup and I just used a lot of what I had laying around, but I'd like to do things "right" and get the best results possible. Thanks in advance.