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Thema
Only first led of WS2818B lights up
I have the issue as described above.
Config: Rpi3, Hyperbian, WS2812B 240 leds, connected to GPIO (18), powerblock powersupply (100W)
When I start up Hyperion, only the first led powers on.
Capture card works and that first led responds to what the capture card 'sees'
All leds were on once, after that I rebooted the Rpi to test again, and the problem was back.
I can't find out the problem, checked all connections over and over.
I measure almost 5V at the end of the tape, so power is good and tape is…
Config: Rpi3, Hyperbian, WS2812B 240 leds, connected to GPIO (18), powerblock powersupply (100W)
When I start up Hyperion, only the first led powers on.
Capture card works and that first led responds to what the capture card 'sees'
All leds were on once, after that I rebooted the Rpi to test again, and the problem was back.
I can't find out the problem, checked all connections over and over.
I measure almost 5V at the end of the tape, so power is good and tape is…
Maybe your second led is also broken?
Easy to test by connecting one of those DuPont wires, from data out to the middle of the third led. Keep it there a few seconds.