Here is the basic idea:
mobile device ---> wireless router ----> arduino
The arduino is connected directly to the router by using an Ethernet shield. The mobile device is connected to the router wirelessly.\
The mobile device must be able to send information to the arduino. I would also like the arduino to be able to send information to the mobile device but this is not a priority right now.
I am very new to this and I am mostly doing this for the learning experience. One of the biggest problems I have is how to use an android powered device to send data to the arduino. Is there some sort of app I need?
Any guidance is greatly appreciated.
Thanks in advance.