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Ultrasonic Sensor to Trigger Playback?

Adam Bailey

March 05, 2025 00:04

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Hi friends.

Doing a big project and the client wants 10 HD1025's on these boxes.  The idea is that when you put your head in the 81" x 62" x 40" box (from a hole underneath) a sensor will detect the person (should we do ultrasonic, laser, PIR???) and play the clip.  It has to keep playing while the person is in there (this is where PIR might not work) and reset when they are out.  We would also like to use the same sensor connected to a relay that will turn a 12v LED light off when playing the video and ON when nobody is in the box.  

We've started this process with Arduino using a network shield, but that feels clumsy considering the GPIO might work for this.  Has anyone here made code for something like this?

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3 comments

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  Monica Cole March 06, 2025 11:00

  Hi friends.

  Doing a big project and the client wants 10 HD1025's on these boxes.  The idea is that when you put your head in the 81" x 62" x 40" box (from a hole underneath) a sensor will detect the person (should we do ultrasonic, laser, PIR???) and play the clip.  It has to keep playing while the person is in there (this is where PIR might not work) and reset when they are out.  We would also like to use the same sensor connected to a relay MyCenturas that will turn a 12v LED light off when playing the video and ON when nobody is in the box.  
  
  We've started this process with Arduino using a network shield, but that feels clumsy considering the GPIO might work for this.  Has anyone here made code for something like this?

   

  Hello,
  
  You're working on a project where HD1025 displays in large boxes play videos when someone enters. You need a sensor (ultrasonic, laser, or PIR) to detect presence and control a 12V LED light. Laser sensors might be the best choice for accurate presence detection. You can use Arduino to manage this, controlling both video playback and the LED light with GPIO pins. Integrate the laser sensor to detect presence, turn off the light, and start video playback, then revert when no one is detected. This approach ensures seamless interaction and efficient resource use.

   

  Best regards,
  Monica

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  Adam Bailey March 06, 2025 19:39

  Thanks Monica.

  We we're a little worried about the light sensor for the laser getting interference, and precision aiming.  But I think you're right.  This was the original plan, but I'm not having good luck with sending a UDP message from the Arduino.  Do you have a link or something that can show me a quick way to use the arduino with the GPIO.  We could also do the UDP option if you have a good guide.  This is due to be installed tomorrow and I've been struggling!

   

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  Russel Tait May 06, 2025 16:10

  Have a look at Nexmosphere sensors, they integrate prefectly with Brightsign players and very straight forwards to program.