I had a previous setup working, this was using the older Hyperion Java app. I had the USB grabber with the HDMI to A/V. Running 4K/HDR content started to become an issue. Otherwise this worked perfect. I saw DrZz's video, and with a new grabber decided to update everything.
Here is my hardware
- Raspberry PI 3B
- 253 W2812b LEDs attached to the TV (confirmed working fine).
- Had a 5v 10a PS but, reading the New Hyperion suggestions of 16.7a, I grabbed a 30a one.
- A 4K 60hz grabber ( https://www.amazon.com/gp/product/B08DHRRV3G/ )
I followed DrZz's video (
As I followed that video, I also watched other videos and lots of searching on here to try to troubleshoot without luck.
I verified points from the LEDS to the PI/Power supply is strong and connected with a voltmeter. The suggested power for my LEDS is 16.7a, I upgraded to a 30a one so it does not peak and should stay cooler. This runs the LEDs and the PI.
I am running build/alpha 9, the newest one of Hyperion(no problems connecting via the web page). I have my Data pin(green wire) going from my LEDS to GPIO-18 on the PI as suggested. The LED type is w281X and it's set to GPIO-18. The layout should be perfectly correct with corner correct and 253 led as listed. Everything DOES have a common ground, double checked this one and am very clear (had LEDs flashing on the old setup till I did this)
The Grabber works after setting USB capture, I open the preview, I see the video playing, and I see the LEDs where they should be lit up, everything from this look great.
I did follow on DrZz's video to run these commands on the PI (so I can use GPIO-18)
sudo systemctl disable --now hyperiond@pi
sudo systemctl enable --now hyperiond@root
Any other things to try ? I am lost now. LEDS did work fine with the old setup, plenty power, data pin has a solid connection as well as LEDs have plenty of power. Preview looks great, but, nothing to the LEDs..
I am looking for ideas to troubleshoot this deeper, so if you have something I should try please let me know.
Thanks in advance if ANYONE can help here before I pull out my hair !