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GPIO connection availability

Robert Holstrom

March 11, 2018 00:47

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I do see a connector labeled GPIO next to the GPIO connection from the Raspberry Pi 3 B on the Beocreate 4 channel Amplifier V2.0 board but do not see and pinout diagrams available on the web.  Can you point me in the right direction on the availability of GPIOs and the pinout?

I have to full board now working via Bluetooth and have stared working on the Fruitbox project which is going very well up to this point.  Configuration wise I can play music from Fruitbox selected MP3s.  Just need to figure out how to integrate external push buttons to the system via GPIO.

Also not aware at what the jumpers do.  Is there documentation available?

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3 comments

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  Robert Holstrom March 11, 2018 01:12

  Found it here.

  https://www.hifiberry.com/beocreate/beocreate-doc/beocreate-gpios/

  Now it looks like I need to find a way to get more GPIO pins on the RPi.

  It is possible?  Is there a board available to get me another 15 I/Os?

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  HiFiBerry team March 11, 2018 15:00

  I'm not aware of something that just gives you another 15 I/Os. There are I2C GPIO extender chips available, you might look for something like this.  Do you really need 15 buttons?

  Best regards,
  Daniel

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  Robert Holstrom March 11, 2018 20:41

  The Fruitbox can use a combination of GPIO and keyboard presses so I am going to see if I can use an Arduino Leonardo as a keyboard simulator to give additional inputs.