XorgTablet is an Android app that sends motion and touch events via UDP to a specified host on port 40117.
It is especially useful in combination with the xf86-networktablet X.org input driver (https://github.com/rfc2822/xf86-networktablet) that allows these touch events to be processed by the X server. So, you can use your Android tablet or smartphone to control the X server and, for instance use GIMP with your Android tablet as a graphics tablet (even pressure-sensitive, if your hardware supports it).
Any device with Android 4.0+ and touch screen
You can find the latest binary on SourceForge: https://sourceforge.net/projects/xorgtablet/files/XorgTablet/
- Pressure sensitive
- Size of canvas will be detected and sent to the client
- Option for ignoring events that are not triggered by a stylus pen: so you can lay your hand on the tablet and draw with the pen.
The used protocol: https://github.com/rfc2822/xf86-networktablet/blob/master/protocol.h