[domsl]

May I ask, in case you use Wifi: Which Wifi module do you use for the Compute Module?

Because I agree it is a very useful form factor.

[l1k]

There's a Revolution Pi product coming this year which has WiFi built in (called "Connect Flat", was on display at the SPS fair in November 2019).

We used a chip based on Cypress CYW43455, basically the same as on the Raspberry Pi 3B+, to benefit from the existing decent driver support.

[domsl]

I see, thats smart.

My question would be how would I start out doing something similar? Because the I was thinking I would just have a look at the rasperry pi 3 b+ schematics (which do not show the Wifi Module, because they are incomplete, so I guess SDIO or UART?). Compare it to the schematics of the compute module, design a board thats connectso the Cypress Wifi Module and use the same drivers used in the rasperry pi 3 b+.

[jwr]

I designed in a WG7831-DELFA WiFi/Bluetooth module, based on TI Wilink8, connected via SDIO.