A USB Host Shield 2.0 compatible AndroidAccessory Library
I've been reading the Arduino + Android Projects for the Evil Genius book (by Simon Monk) .... if you are interested in learning what's required to communicate between an Arduino and an Android Phone or Tablet, this is a great way to get started. Anyhow...while playing with the sample projects, downloading the code, etc. I found that my USB Host Shield (which uses v2.0 of the Arduino library from Circuits@Home found here ) wasn't compatible with the AndroidAcessory library found in the Android Open Accessory Development Kit (ADK) that can be accessed here . So, rather than taking the time to change all of the Arduino sketches to be compatible with the newer USB Host Shield library, I went a different direction and instead took some time to create a 'compatible' AndroidAccessory library. I can tell you that all of the Arduino sketches in the aforementioned book will compile unchanged ... and they seem to run just fine. It really should work with any