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Thread: Ghosts in the Machine

  1. #1
    Frosty member TomL8345's Avatar
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    Ghosts in the Machine

    I have channel specific flashing of incorrect channels. For instance when a certain pixel on my pixel tree is lit RED, the Blue channel on my Renard RGB arch lights. The Arch channel is 99 and the Pixel Tree channels are 688-2920.
    There are a couple of other similar Ghosts showing up in my Renard channels when my pixel tree is in operation, all seem to be in Dumb RGB channels, but on different controllers. Also the channels that are misfiring are not responding to their channel number. All this equipment was tested in component level less than a month ago and worked perfectly. This EXACT same issue plagued me last year without resolution.

    I am using FPP from RPi > Falcon F4V > serial output to Renard Daisy Chain : RP32>RP32>RP32>64LSD>64LSD>Ren64 The problems are showing up in the last three controllers in the daisy chain.

    I am using the current version of xLights

    What additional info can I provide or what suggestions do you have for me to check?
    Last edited by TomL8345; 12-05-2018 at 12:05 PM.
    2012 - 1st year 64 Channels - 7500 LED lights - 5 sequences
    2013 - 128 Channels - 10,000 LED lights - 7 sequences (2 New)
    2014 - 201 Channels - upgrading 8 Arches to dumb RGB - 8+ sequences (1+ New)
    2015 - 240 Channels + 8 Universes - sequences TBD
    2016 - No Display
    2017 - Back in the Game - 240 Renard Channels + 12 Universes

  2. #2
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    did you upload the controller descriptions to fpp or did you do them manually?
    xlights check sequence okay?

  3. #3
    Frosty member TomL8345's Avatar
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    Quote Originally Posted by MikeKrebs View Post
    did you upload the controller descriptions to fpp or did you do them manually? I used FPP Connect
    xlights check sequence okay? No Problems Found
    See above
    2012 - 1st year 64 Channels - 7500 LED lights - 5 sequences
    2013 - 128 Channels - 10,000 LED lights - 7 sequences (2 New)
    2014 - 201 Channels - upgrading 8 Arches to dumb RGB - 8+ sequences (1+ New)
    2015 - 240 Channels + 8 Universes - sequences TBD
    2016 - No Display
    2017 - Back in the Game - 240 Renard Channels + 12 Universes

  4. #4
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    That is a lot of serial channels in a row. Can the falcon use 2 stop bits?
    seems strange that a channel so far away would turn on a near channel. Is the channel involved repeatable?
    anyone else having problems with 200+ serial channels on a falcon?

  5. #5
    Frosty member TomL8345's Avatar
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    Quote Originally Posted by MikeKrebs View Post
    That is a lot of serial channels in a row. Can the falcon use 2 stop bits?
    seems strange that a channel so far away would turn on a near channel. Is the channel involved repeatable?
    anyone else having problems with 200+ serial channels on a falcon?
    The Falcon Can use 2 stop bits, what changes would I need to make to my controllers? I am currently flashed for 57600 and 1 Bit,

    So the offending channels are 99 and 198. Channel 99 comes on when a certain pixel turns Red on my pixel tree, Channel 198 comes on when a certain pixel turns Blue on my pixel tree. I have not chased down which pixel or pixels initiate the rogue signal.

    Maybe I should put a usb>RS485 adapter on the Pi and run the Renard Chain off that?
    2012 - 1st year 64 Channels - 7500 LED lights - 5 sequences
    2013 - 128 Channels - 10,000 LED lights - 7 sequences (2 New)
    2014 - 201 Channels - upgrading 8 Arches to dumb RGB - 8+ sequences (1+ New)
    2015 - 240 Channels + 8 Universes - sequences TBD
    2016 - No Display
    2017 - Back in the Game - 240 Renard Channels + 12 Universes

  6. #6
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    When you say flashing of channels, are they going full on? As in it appears a signal is getting sent to them or is it just a brief light flash that appears to be interference? We had an interference issue years ago(with older triacs) in some of our controllers that we resolved by putting power filters on each of the controllers.

  7. #7
    Frosty member TomL8345's Avatar
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    Quote Originally Posted by ctmal View Post
    When you say flashing of channels, are they going full on? As in it appears a signal is getting sent to them or is it just a brief light flash that appears to be interference? We had an interference issue years ago(with older triacs) in some of our controllers that we resolved by putting power filters on each of the controllers.
    I seems to be signal, as the channel will stay on the entire time the triggering effect is on the pixel tree.
    2012 - 1st year 64 Channels - 7500 LED lights - 5 sequences
    2013 - 128 Channels - 10,000 LED lights - 7 sequences (2 New)
    2014 - 201 Channels - upgrading 8 Arches to dumb RGB - 8+ sequences (1+ New)
    2015 - 240 Channels + 8 Universes - sequences TBD
    2016 - No Display
    2017 - Back in the Game - 240 Renard Channels + 12 Universes

  8. #8
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    stop bits...
    I don't think any changes to the controller are needed. They will be looking for the transition from stop to start so they will just wait around for a bit. Dirk found this solution for a problem in long serial chains.
    hearing how consistent the problem is though suggests something else is up. Is the falcon firmware up to date?

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