I have a wired tcp/ip based device that I need to access from an android app running on a rooted nexus 7.
There is only one hard-requirement
1. The tablet's primary internet connectivity must NOT be affected (3g and wifi).
and a couple of preferences...
2. Preferably the device would be accessed wirelessly.
3. Preferably this would be accomplished without additional hardware physically attached to the tablet.
The options as I currently see them...
obviously this would require some sort of ethernet to bluetooth gateway. I would rather not pay more than the price of the table for an industrial device which has significantly more capability than what I would need. So does a consumer version of this even exist? If it does would the resulting bluetooth connection on the tablet interfere with the 3g/wifi internet connectivity or is that something I can workaround with special routing rules or just coding the app to use bluetooth rather than sockets?
Is there a way to accomplish this while still meeting requirement #1? Maybe attaching a USB dongle via the tablet OTG connection and running two simultaneous wifi connections with special routing rules?
USB RJ45 dongle via tablet OTG connection? This is similar and possibly simpler than the wifi option yet has the same potential issues regarding having two network connections active concurrently.
Any thoughts, suggestions, creative solutions?