I been searching through the forums on this topic but can't find anything about what I 'm looking for. The closest I can get is this old thread from back in 2010 by Heather; http://forums.parallax.com/discussion/123974/android-android-linking-a-mobile-phone-and-propeller
I shall try to explain very shortly what I really would like to do:
My plan is to use the Propeller to connect to a smart phone (android), then let the phone deal a number and connect to another phone and then exchange datastrings. The remote phone is set up the same way, also with a Propeller, who then receive and answer with another datastring.
Today I'm doing this with two Fona's from adafruit, but they are using old fashion technology, (2G limited to 900MHz) and establishing connection has been pretty slow lately. The last two weeks I haven't got a connection between the two at all. I suspect the cell tower for my master station is not providing 2G at all or is in a kind of error state, because I took the station home and it works here, no problem.
But 2G will be history in a couple of years anyway so I need to go for another solution.
So I would like some suggestions, go for bluetooth or usb, can I use AT commands here? What should such an (android) application include?
Best programming platform, Android Studio or Visual Studio, others?
All kind of suggestions will be highly appreciated!