[Jani] directed us to his tutorial on making a laptop touchpad work with an Arduino. After seeing the recent post on touch pad and VFD hacking, he couldn’t resist finding one of these to play with. He shows us how to connect it all up and offers two methods of using the data from it. The first method is to determine the direction of finger travel and the second, shown above, is to use it more like the volume control on an iPod. Source code for both is available on his site.
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