[L] = [EM] = Electronic design

So I've found out what I need to do to connect the off-board MAX98357 via I2S and I've got an idea to use the same type of ribbon cable (and pad) as the 1.47" LCD:

I've used the GND pins to split the power, I2C and I2S sections apart.

Now thinking about it, I probably shouldn't power the BLDC through the ribbon cable because there's another 7 it also would have to power. I also need an addressable RGB pin.

All these additional pins means that I'm seemingly out. I wonder if I could actually use those bottom 4 IOs.

It totally sounds like I can. Even then, I've got 1 pin left and 1 memory LCD to connect. I'm going to need to parallel-out some pins.

[Edit 1] I just remembered that, for Tetrinsic Taic, I need the photovoltaic cells connected in parallel.