Magic Frame : Turn everything into a digital touch area!

All the informations you need are here :
hackaday.io/pr...
This tutorial is about helping people to build their own touch screen solution based on any flat screen TV. It uses light triangulation technology to read the coordinates. This method is quite cheap ( the priciest part is the TV), with a good quality image and you can make the table almost as small and as thin as your TV is.