That should work provided you solder on pins on the underside and put the zero on top face up. It’s going to create a bulge so the stock case isn’t going to work though.
3 Likes
This project is in my dreams 
im learning KiCAD and this is what i want to do. maybe v2 will have an RTC / etc kinda like two wings Left and Right . Pi02W on one side, modules on other (LoRa / RTC / ADC / etc ) Keep up the good work !
I’ve been thinking about this with the RPi02W and the huge one piece passive heatsink. Ideally the top of the heat-sink will face towards the back side of the case. Perhaps this PCB is pushed all the way up with a spacer from the original Pico Headers location, Then a rectangle is cut out of the PCB board to accommodate the Pi02w , the a female header is put on the underside of the PCB to catch the Pi02W male headers underneath to mount. so the Heat-sink protrudes through the cutout and allows room for everything to fit in the stock case?
How is everything going with your project? I’ve been learning KiCad and experimenting with something very similar.
Im not sure which wires should go where for the most part But i will reference your schematic to double check.
Ideally I want to have the Pi02w mounted like this with the big heatsink (will have to cut a rectangle out of the PCB to allow fitment. Will also have to solder on Male headers to the Pi 02w to allow connection to the Female header on the underside of the Adapter board It miiiight just all fit
4 Likes
I have PCB’s but i kinda threw in the towel after I saw the luckyfox lyra mod, I did it and honestly, minus the lack of embedded wifi, its way better than the Pi zero 2 for this kind of application, other big problem is just the available voltages, 5V is just simply not available on the headers so has to be more than just an interposer, with that being said, the work from the folks implementing the luckyfox lyra could likely have there stuff recompiled for RPI without much fuss
You don’t need 5v for pi zero 2w. I think ~3.5-3.6v is enough for it…