I use XPortHub1 a lot, but have not assembled XPortHub2 with Ethernet yet. What I would like is a XPortHub with radio and I am thinking of 5Km LoRa. With that I could use this as the master on my robots.
I also need a SPI Flash or something to store config. I can as an emergency store that in internal flash, but it’s a bit better with an external Flash.
I like to keep RPI as backbone, but I am not sure about the Watchdog version of DeviceBus.
I need 2 x CAN of which one must be on the backbone.
2 x RS485’s are always handy.
USB is basically mandatory.
The key think with this is that it act as wireless hub. As for Ethernet, Wifi and Bluetooth I can always add a Raspberry PI.
I have not added to much on this yet, so lets see.