Touchless technology for interaction with devices such as Android tablets has been developed by Ootsidebox.
This is one of their demo videos that shows the technology in use. Hand gestures are used for control instead of directly touching the screen.
The project is open source / open hardware and based on the Arduino environment according to this article by Elektor who were visited by the inventor of the technology – inventor Jean-Noël Lefebvre.
Readers of the Starting Electronics blog may be interested in this DIY pick and place machine built by Brian Dorey (briandorey.com) who is using it to place parts for a Raspberry PI expansion board that he is manufacturing.
Brian has published photos of the components and software used to build the machine as well as some videos made during the build process (click the above link to view).
Wishing everyone a happy and prosperous new year!
The Starting Electronics Team.