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Using AMP+ for car audio

Loren Ward

April 05, 2018 19:00

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I want to make my own head unit with a camera display, volume controls, track controls, etc written in Java. I've done most of the GUI coding and have volume controls for the pi working as per https://www.dronkert.net/rpi/vol.html .

I have two primary questions: first, will that work for the volume controls for the Hifiberry AMP+?

Second, I keep seeing references to included Bluetooth software but can't find anything on your site. Are you providing Bluetooth software that will route my phone's audio output through the AMP+? Does this software allow pause/play and track controls? Any link to documentation that would let me implement the pause/play and track controls with my Java GUI?

Link to my GUI code: https://goo.gl/D7h447 (the buttons in the LowerPanel are placeholders, as is the listener)

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6 comments

• 0
  
  Loren Ward April 05, 2018 19:01

  [added to original post]

  Edited by Loren Ward April 05, 2018 19:04
• 1
  
  HiFiBerry team April 06, 2018 04:54

  Hi,

  you can already use percentage values of rvolume control so I don't see why you need this code that you linked.

  We don't provide any software at all. However, there is plenty of BT software available from other developers. Have a look at BTSpeaker.

  Best regards,

  Daniel

• 0
  
  Loren Ward April 14, 2018 01:53

  Thank you for the post, can you link me to something specific? Every tutorial I've found is outdated and not working.

• 0
  
  HiFiBerry team April 14, 2018 05:40

  I don't think you will find a tutorial that you just have to follow and you get exactly wht you need. However, there are lots of project documentations available here in the community area, but also on other places on the internet. Have a look at the Peppy player:

  https://support.hifiberry.com/hc/en-us/community/posts/206543139-Peppy-player

  Best regards,
  Daniel

• 1
  
  hifi April 14, 2018 15:53

  You can get very detailed instructions for connecting Bluetooth speakers here on German Raspberry Pi forum (on second page):
  https://forum-raspberrypi.de/forum/thread/38115-peppy-webradio/?postID=321912
  
  Good luck!

• 0
  
  Loren Ward May 15, 2018 18:09

  Thank you, hifi!