I would like to design a device that is capable of connecting to a PC via WiFi or a wired connection (ideally Ethernet as well). I would like for it to be possible for a wired connection to be used while a wireless connection to a remote device is also able to communicate with the device (using the WiFi). So for this to be possible i believe that I would need a WiFi module and a wired Ethernet adapter controller. I would prefer to use Microchip devices and I have been studying their line of Ethernet controllers but it seems like it would be quite a challenge to configure their firmware stack to work with a wired connection and a wireless connection at the same time.
I guess my other alternative would be to use WiFi and RS-232 so that way I only need the stack for the wireless connection. That would simplify things greatly but I lose my ability to have true remote control from outside the building on my wired connection.
I guess this project would be similar to a printer that can be connected to using either WiFi, or a wired connection, or possibly both at the same time.
Has anyone worked on a project like this or have any suggestions for me?