@ HazardsMind-
Im curious how you did this? I have never looked into the tablet >> arduino approach before.. but sounds fun.
1.) how do they communicate? hardwired? blue tooth? (then needing a BT module on the arduino side?) serial? (somehow?)
2.) what do you use for your 'GUI' on the Tablet? Processing? Flash? other?thanks!
The tablet communicated through a serial connection via bluetooth, to a BT slave module on my UNO. I used Java Eclipse (Android ADK) to write a program for the tablet to send Bytes of data to the UNO.
I knew java to begin with, but I never had to make an app using java that had to communicate to another device. It took a while to understand what protocols were needed, what had to be in the manifest file, etc. But as far as coding went, it was easy once I understood what UUID I needed. At that point my BT was able to sync and I could start sending little bits of data.
I made a bare basic program on the UNO that if it received the character "H" it would turn on a LED, and off if it got "L". After that, it was easy.