Connecting Pirate Audio: 3W Stereo AMP

Hey there,
I am trying to connect my 3W AMP from pimoroni via GPIO to my raspberry pi running pi musicbox to get some sound of an old speakers. However, I can’t find out if this is possible to connect. In the webinterface, I can’t choose the according amp for sound output.

The web interface provides a dropdown containing a bunch of audio cards people have asked for. Each one corresponds to a specific hardware overlay added to the usual /boot/config.txt file.

You can see at https://github.com/pimoroni/pirate-audio that it requires:

dtoverlay=hifiberry-dac
gpio=25=op,dh

Which I believe already has an entry in the dropdown named “HifiBerry DAC”.

But you would need to manually add the gpio line yourself (if you want the buttons to work).