* [x] Refactor to enable other connection types * [ ] Update to android 4 * [ ] Implement Android USB Accessory * Oficial doc: https://developer.android.com/guide/topics/connectivity/usb/accessory * Identifying Your Android USB Accessory http://jeffreysambells.com/2011/05/15/identifying-your-android-usb-accessory * Example Activity: https://android.googlesource.com/device/google/accessory/demokit/+/52f44bd420b3e97cd48808b03943fdd70967754e/demokit/app/src/com/google/android/DemoKit/DemoKitActivity.java
Refactor to enable other connection types
Update to android 4
Implement Android USB Accessory
Oficial doc: https://developer.android.com/guide/topics/connectivity/usb/accessory
Identifying Your Android USB Accessory http://jeffreysambells.com/2011/05/15/identifying-your-android-usb-accessory
Example Activity: https://android.googlesource.com/device/google/accessory/demokit/+/52f44bd420b3e97cd48808b03943fdd70967754e/demokit/app/src/com/google/android/DemoKit/DemoKitActivity.java