A MacBook touchscreen for only $1

I don’t own, and have no intention of owning, a MacBook as I own a touchscreen Windows laptop however this approach to make it support touch is genius. They use a mirror at the top of the screen and some image processing to work out where the finger is. They can determine if the finger is actually touching the screen by whether it is touching its reflection - very clever lateral thinking.

Links

Turning a MacBook into a Touchscreen with $1 of Hardware

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