http://stream.tellart.com/controlling-arduino-with-android/
I'm working mostly with the examples in this tutorial.
The error is probably with Processing, it keeps throwing: cannot access com.android.future.usb.UsbAccessory.
I tried Googling this error, but most of the explanations seem to start in the middle of the problem. I did look at the Java source files from the ArduinoADK offered on the Tellart site, but all references to the cannot access file are commented out - I can't find where it is even trying to access the file to fix it.
As far as what screen, I have a full screen app that changes from black to white when the screen is pressed - I just want to add the Arduino pin 13 doing the same thing when I press the screen.