Using Zero 3W with Pi DAC/AMP Hat

[Guest]

I'm building a multi-zone music streaming setup built around an SBCs running Snapcast/MPD and this MA12070P board (AliExpress link). From the pinout diagrams it looks like the board is the same as the Merus Audio Amp Hat just with a built in USB-C PD supply (why I want to use this board). If it's a clone then it looks like support is in Raspberry Pi OS, but I want to use the Radxa Zero 3W since I can get it at a similar price point with better specs.
 

This is my first embedded project since ~2019 so a bit out of my depth when it comes to device tree overlays. How would I write a DTO to enable audio output to this device?

[axel]

Did you ever make progress on this project?

[Kevin Miller]

Interested myself in the 3W in general, and if I can find them anywhere.  They have the proper chip for a zero form factor board to use with the Radxa 5C and 5A, and several other boards.  So I've looked, but they seem to have been outdated by the better zero form factor boards... which also seem to have a specific chip type, and aren't really compatable with the other chips if you're trying to give yourself some headroom to run clusters or offload some processes.  I don't know too much about too many things yet, but I know that I need to stick with 1 chip, like a GPU arcitecture, and I can't find the 3W anywhere for any type of reasonable price.  I think I found a few for like $300, but the dream of using this stuff at the top end of what it can be used for is looking grim as I am having troubles finding some of these parts for this more developed chip style.  I'm sure in due time, it will all be replaced by the new Radxa zero form factor, along with the Pi form factor which will probably gravitate to this new more powerful model.  The Zero board has twice the specs aprox. as the old 3W, which means likley the next Radxa board is comming out swinging to start with 32GB of RAM, and then it'll be updated with 64GB.  As they seem to do that... Start half mast, then bring out a new twice as powerful model.  Hoping to get my first arm project going, and I wish I knew more about ARM in general before I started focusing on 1 chip style.  Radxa is cool, and they are buff as can be, but as ARM evolves, the specificity of board type to the different things you have to do is a big big pain in the ass that makes this whole adventure more painful then it should be... Eventually I'm sure it'll all come together into a standard.... But by then, you can't be a pioneer in the tiny computer parts projects.  Hope this thread evolves some.  I know just seeing a title on 3W caught my eye, and it's on the top of the list.  I'll be getting more involved with all of this in the days to come.  If you can message me, feel free.  I am pretty Armtarted, and would love any information I can get.