We made this app open source [ https://github.com/PileProject ].
This Android application helps beginners of programming to learn.
Users can make programs which control a robot by assembling blocks on an Android device (tablets are recommended).
Through this experience, beginners of programming can learn the structure of programs and the way of logical thinking.
The robot controlled by this app is LEGO MINDSTORMS EV3 (We have also released "NXTDrive" which is an Android app controls LEGO MINDSTROMS NXT).
Reconnection will be failed because of bugs of the library.
Please restart EV3's Bluetooth in advance and retry to connect.