Android DIY Mobile Development

Android Kinect Projector Interface w/ System Access

Watch this video on YouTube.

This is a continuation of my work to create a way to interact with Android when it is being displayed on a large scale using a projector.

The setup I’m using consists of a Kinect hooked up to a Windows PC running Simple Kinect Touch. This software processes the input from the Kinect and sends TUIO commands to a Galaxy Nexus running TuioForAndroid. These events get injected into the OS as touch events allowing control over any application. The projector is connected to the Galaxy Nexus with a MHL adapter.

In order to give  TuioForAndroid system access I had to download the AOSP source tree and compile a rom for my Galaxy Nexus.  TuioForAndroid must be signed with the System key so that it can get a system pid to inject the touch events into the OS.

Android DIY Hardware Mods

Xoom dock modified to allow passthrough USB

Last week Motorola finally started allowing Xoom tablets to be sent in for their 4g LTE upgrade. Mine came back today and I was surprised to discover that they had sent it back with a little something extra, a dock. I had been looking at getting one of these since I go the Xoom back in February. The only reason I hadn’t was that there was no passthrough USB so I wouldn’t be able to use it while developing Android applications. Having received one for free I decided to go ahead and see if I could modify it to have USB and make it a little more useful.

Disassembling the dock was actually easier than expected, Motorola opted to use screws instead of the typical snap together casing.

From there it was as simple as desoldering the USB connector in the dock and splicing it to a USB cable that I had laying around. I opted to remove the audio jack from the board inside the dock so that I could route the USB cable out through the existing hole.

I hooked the Xoom up to the dock and my computer to make sure that all the connections had been made correctly and then promptly sealed the dock back up.

Finally a useful dock for the Xoom!