I am trying to make a WiFi internet network from 3G using Arduino as access control. I need the Arduino to act as server and control users, consumption, and connection speed. (When users connect to the WiFi, they have to enter a passcode in a webpage to use internet for a limited time, or limited data.)
So is this possible? I still did not try anything because I can not afford to buy many objects and fail to make it work.
I am thinking of using a 3G shield and a WiFi shield, or a router connected to 3G dongle connected to an Arduino via ethernet, or a 3G shield Arduino to ethernet shield to WiFi router.
I don't know if any of these can work, so I really appreciate any guidance.