Posts by sniktaw

I believe the problem is the capture card. Like mine it outputs the rainbox effect (in your image) and thus Hyperion is receiving a signal from it and therefore it's not idle. You'll need to power off the capture card to get an idle state. Pull the power to the capture card and see if the effects play then you'll know for sure. Then you'll have to a, live with it b,change the card or c, work out a convenient method for powering it down each time. See: this

Paulchen-Panther good idea. Stupidly I hadn't thought about using another SD card, I'll give it a go and report back.

PI Zero W, WS2812B, Hyperion alpha 6

All working as it should. Simple question: should I upgrade to alpha 11 or as the adage goes: if it ain't broke, don't fix it?

It may be this: keep the backlight threshold at 0 or when off/no signal the LEDs will still be on but with a low brightness

en

My setup is with a Pi Zero and WS2812B LEDs with a 10A PSU though not the same capture card. Having read a few threads things I've learnt are: make your GNDs (PSU & Pi) common and have several of them. Also, you don't say if you're using GPIO18 to control the strip however, if you are then try a level shifter.

look at this thread

Well, green, red or blue are the easiest as the other colours in the rainbow are mixes of them. Then green comes first of those three. At least, that's my logic ;o)

sorry Ambient_theater77 should have been more specific ;o)

tick signal detection to use it then use the green signal threshold and the Vmax, Hmax &Hmin to detect a 100% green bar full height & some width. Hope that helps more this time.

Use signal detection. My settings eliminate this.

The use of a level shifter is not a given, mine worked without but I was getting some interference on SPI so added the shifter (I later found out it wasn't needed and the interefence was elsewhere). You asked how the OP fixed with a level shifter so I suggested how I used one on GPIO18 ;o)

Does this help?

Keep backlight threshold at 0 or when off/no signal the LEDs will still be on but with a low brighnessen off you get low brightness LEDs on

this is how I did mine:

Use signal detection and detect a colour, for example green, as I do:

try this, signal detection on , green 100, etc:

this maybe

Sounds like HDMI as Mike72 says. I use a PI Zero W. If the HDMI input device is on before the PI powers up then there is no output. Power up Pi then power up HDMI input device or plug in HDMI cable to PI and all is good. I now leave my PI on constantly and have no issues toggling the input device power ;o)

I have Hyperion on a PI Zero W with 120 x 2812B LEDs and have no issues at all - working for maybe 3hrs per day. I DO NOT use Arduino. Have you checked obvious things like PSU has enough power, common grounds? MY setup is like this:

Almost exactly my setup. Same Pi, LEDs, grabber and I too use a HDMI splitter though not that model. I only have 128 LEDs running from a similar 10A PSU, connected only at one end, without issue. Make sure you have a common ground. I used this guy's guide and tailored to my needs:

Disconnected USB grabber and set white strobe as background effect (no signal effect) so I can see them working - plugging in ethernet cable still stops the LEDs. Suggests the issue is not the USB.

Connected two grounds on the PI to the PSU ground - plugging in ethernet cable still stops the LEDs. Suggests the issue is not a need for common ground.

I'm at a loss now. Anyone?