Hi,
I’m only discovering this wonderful project now. I don’t have a factory i2s DAC hat nor a spare Raspberry Pi on hand (they’re so hard to find right at a right price now), but I have this device (picture below) that I made a couple of years ago for a different project, which runs on a PI3B+ and features a custom audio IO board, so I figured I could try Volumio on it.
So, I flashed a micro SD with Volumio OS 3, accessed the hotspot and config wizard but there was no option for my DAC, which is a Wolfson WM8731. I followed the procedure on [adding compatibility to my DAC] page, rebooted, but it is still not showing in the list of i2s devices available in the web interface / settings.
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In more details, I ssh to the PI with a terminal and edited the following file:
sudo nano /volumio/app/plugins/system_controller/i2s_dacs/dacs.json
and added the following line to the RPI section
{"id":"wm8731","name":"WM8731","overlay":"rpi-proto,i2s-mmap","alsanum":"2","mixer":"","modules":"","script":"","needsreboot":"yes"},
The dtoverlay I used to add to config.txt for my DIY device for the WM8731 is rpi-proto and as far as I remember, the PI didn’t need anything else, but I’m not so are anymore.
Am I editing the wrong file ? Or can I override the dtoverlay manually in config.txt ?
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Any help appreciated ! I hope I can use Volumio directly on this device, I don’t really want to dismantle the prototype, but if I need to, I 'll get a Hifiberry DAC or something directly supported. Also, please forgive me if I’m posting in the wrong category, I really was not sure where to ask for help, here or in the DIY category…
Thanks
Edit: I’ve found this post who might come in handy. Will try a variant tomorrow maybe [GUIDE] Wolfson Cirrus Audio Card / Raspberry Pi 1 - Modell B V2011.12