This one's a doozy: I'm developing an Android app in Xamarin which will send messages to an EV3 brick running ROBOTC. Anyone think they could help me with this? I understand that NXT bricks can use sendMessage(); but I'm using an EV3, and can't find a way to use this. Any help on this would be greatly appreciated. As for the type of info I wish to send, either strings or, if not, integers will do.
EDIT: Right, I forgot. The app will be for a Kindle Fire, and preferably held in landscape mode.
RobotC does not have Bluetooth support yet (they are working on it). Once they do get it working, you will need the "EV3 Communication Developer Kit" from the LEGO MINDSTORMS downloads page. This explains the communication protocol. In particular, look for the "mailbox" instructions. This is how messages are passed back and forth between applications.