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Digi + Pro GPIO pins used

fbonacic

November 22, 2019 09:28

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Hi,

 

I'm trying to use Volumio plugin "GPIO pins" to be able to shutdown volumio with single button. I don't need other pins, just one.

 

Whatever pin I use it disables output of Digi +Pro card, i.e. music cannot be played.

I found this similar post:

https://support.hifiberry.com/hc/en-us/community/posts/201491612-GPIO-pins-used-by-Digi-?input_string=Digi%20%2B%20Pro%20GPIO%20pins%20used 

 

Can you confirm that pins stated in liked post are used for digi+pro also, and only mentioned pins must be avoided when GPIO shutdown plugin is used?

 

And one more thing, I want to use Digi card separated from RPi, so which are the pins I must connect by wires? This one:

setgpio 2 ALT0 UP # I2C communication DAC chip
setgpio 3 ALT0 UP # I2C communication DAC chip
setgpio 6 INPUT DEFAULT # do not use, reserved for Master clock
setgpio 18 ALT0 DEFAULT # I2S
setgpio 19 ALT0 DEFAULT # I2S
setgpio 20 ALT0 DEFAULT # I2S
setgpio 21 ALT0 DEFAULT # I2S

 

Thank you!

Regards

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5 comments

• 1
  
  HiFiBerry team November 22, 2019 12:28

  You can find the GPIO documentation here:
  https://www.hifiberry.com/docs/hardware/gpio-usage-of-hifiberry-boards/
  
  The card is NOT designed to be connected by cables. You can try to use a very short 2x20 pin cable, but we can't guarantee that it will work. 

  Best regards,
  Daniel

• 0
  
  fbonacic November 22, 2019 12:51

  Yes I understand possibility of signal degradation, but need to use Digi borad just aside to RPi, not on top of it.

   

  Will try and see if it works :)

  Edited by fbonacic November 22, 2019 12:55
• 0
  
  fbonacic November 25, 2019 22:21

  Is it possible to get .dxf or similar CAD layout of Digi+ Pro board?

  I need main dimensions and positions of connectors and holes so I can incorporate it in my design.

   

  Thank you!

• 0
  
  HiFiBerry team November 26, 2019 05:04

  There are 3D models available:
  https://www.hifiberry.com/docs/hardware/3d-models-of-hifiberry-boards/

  We don't have any DXF drawings
  
  Best regards,
  Daniel

• 0
  
  fbonacic November 26, 2019 16:49

  Good, thanks!