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Use GPIO of slave payer for more buttons

Matteo.m78

October 09, 2025 15:55

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Hello everyone.
I have a situation like this in a museum:
Two LS425s connected to two projectors that need to send videos in sync when pressing a button connected to the master player's GPIO.
So far, no problems, it's a daily occurrence.
My problem now is that I need to add 7 more buttons for 7 new contents.
Can I use the slave player's GPIO?
I've tried a few tests, but it messes up the project, losing sync and randomly looping the videos.
Either I did something wrong, or it's not possible!
Do you have any solutions?

Thank you so much

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2 comments

• 0
  
  Bright Scripters October 12, 2025 21:11

  Should be simple to do with UDP.
  Upon GPIO trigger at secondary player, it can send out UDP to the primary player. The primary would then handle the UDP just like one of its own GPIO event.
  You could post the two presentation files here so we can understand your current moving parts.

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  Matteo.m78 October 13, 2025 07:42

  Thanks for the tip. I started testing two days ago. I'll dig deeper and post the projects. Thanks again.