Sunday, August 23, 2009

DIY IR Touch Pad

When 2 shadows are detected (one by each laser), it calculates the XY coordinate of each shadow. Using simple algebra, I will be able to calculate the equation for each line that is created (between laser and shadow), and then find where the 2 lines intersect (where my finger is).

TRKBRD XY Coordinate Success! on Vimeo (via Vimeo)

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