“Build your own touch screen solution adapted on your TV by using a CCD sensor from an old scanner 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.Of course, nothing is perfect and with this solution it’s probably not possible to build a 100% multi-touch screen and it’s hard to cover the entire screen area. But depending on the way you make it you can have some interesting results. Plus, I am sure there are a lot of possibilities I haven’t thought about to improve this. ;-)”
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