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RPi + LibreELEC Unresponsive WS2801 [help me debug?]

Discussion in 'Hardware Support' started by isMunim, 4 December 2018.

  1. isMunim

    isMunim New Member

    I have tried every debug method but am unable to understand what's wrong with my setup.

    It worked fine for a day and then stopped grabbing but LEDs were responding to commands from hypercon.
    I did a fresh install by formatting the SD card and reinstalling libreelec.

    Ever since then, the LEDs only light a bright white as soon as Hyperion is started and then never change any color.

    The logs don’t show any error/warning at all. Also, the logs will show that boot sequence ran when it never did.

    Here are all the things I have tried so far:

    1. I have tried with a couple other smaller spare leftover ws2801 strips as I thought I might have the faulty first LED problem.
    2. I have tested the SPI of my PI based on this thread and it works fine. (And SPI is enabled in the config files.)
    3. I have tested with Hyperion NG, the problem stays the same. Bright white LEDS only.
    4. I have tried running hypercon from different computers with a fresh Java installation.

    You can see a recent log file attached.
    I also attached my config file with a recent test using only 4 leds

    What do you guys think I am missing?

    WS2801 LED strips
    10A PSU for led strips
    RPI 3 b+ powered separately

    (And raspian for testing SPI and Hyperion NG)

    Ground to pin 9 and PSU
    Data to pin 19
    Clock to pin 21

    Here's a similar problem thread: https://hyperion-project.org/threads/ws2801-does-not-change-its-color.3224/page-2#post-12512

    Attached Files:

  2. isMunim

    isMunim New Member

    If anyone wanders here, i was never able to figure out what's wrong. The pi showed the SPI working. but switching to a new pi fixed my problem.

    what's wrong with the pi remains a mystery to this day and still haunts me.