Developing a universal module

It installs just like a nrf4L01 module for the most part.
You don't need 5V unless you are connecting a Devo module to the switch (whch you shouldn't on the Devo8). If you did want it you'd get it from the CYRF Module connector which is 5V.

The RESET pin only needs to be hoked up if you are using the Tx as a programmer. My documentation will expect it to be attached to the TCK pin

CSN gets connected to the TMS pin

One note:
The pin ordering for the board is:I need to redo the module install documentation completely to be concistent. It is on my to-do list.

You don't need to tie any pads to ground if youuse the pin header.

Also note that I use a consistent pin numbering in my schematic (same one you use in the xl24l01, not what you used in the WK-21200RF).

I bring both 5V and 3.3V to the universal board. 5V is only for the Walkera module. I'm now using the AWA24S instead which doesn't need 5V

I don't think we're there yet. I think we really need to have more than one user (me) and 2 boards (mine) of the design working and tested before ramping up production. As far as getting a prototype, we can talk about it once the V1.3 boards arrive from China and I have a few spares.

If using OshPark I recommend this link:
oshpark.com/shared_projects/nNRSCkjI

I didn't post the 1.3 schematics and database since it isn't tested yet. OshPark wass definitely faster in my one datum point. Round trip from OshPark (2 times) <= 7days, Seeed was 9 days from transmit to ship. Maybe because the 0.8mm boards are not as popular though, I dunno.

The only difference is that I added support for the XL2500 module on the 1.3 schematics, whereas the 1.2 only supports the skyartec and Aliexpress module.
I'll likely do a 1.4 to support the 3rd cyrf6936 module too in the near future.

But I don't expect most users to even need the cc2500 module. We only have one protocol it supports so far, so I don't think the 1.3 is that big of a deal, and even for folks just wanting the nrf24L01, it brings the ability to directly control the CE pin which could be interesting.

I haven'[t posted installation instructions for the Tx, and ahve only built the programmer for the devo8 so far, but those are both minor issues I'll be happy to rectify should they be blocking someone.

I work probably use something like this:
www.ebay.com/itm/2M-New-40-Way-Flat-Colo...&hash=item3f2c88e195

Finding 8-pin ribbon cable connectors on ebay is surprisingly difficult. I found these:
www.ebay.com/itm/50Pcs-FC-8P-8-Pin-2-54m...&hash=item1e84f7f64f

Or just use 10-pin female connectors (which will fit fine, with 2 pins hanging out) which are much easier to find.

no you cannot share an antenna with this design. The only way we could support that would be a custom RF module with an integrated RF switch. There are many reasons that is unlikely to happen anytime soon.

If you search ebay for UFL or u.fl antennas you'll find the micro-connector variant. If you are looking for the screw-type, I think you want to look for 'SMA' type antennas.