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Gadget Freak: LED Message Board

Rich Quinnell's LED message board traces out a message in mid-air.

Rich Quinnell, editor in chief of Microcontroller Central, created an LED hand message board to display a message in the air.

Using persistence of vision, the LEDs trace out a message in mid-air when the hand is waved back and forth. Rich got the idea after a reader sent in a picture of himself waving a circuit board with LEDs that displayed a message in the air. He modified the original software so he could have a choice of different messages.

Rich Quinnell's hand message board uses LEDs to trace out a message in mid air when the hand is waved back and forth.

Some improvements Rich suggests are adding a keyboard for an unlimited amount of messages, and to make the one inch of text space bigger so the messages can be seen from further distances.

The project was presented at DESIGN West. {table 1} {table 2}

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The editors of Design News have handpicked your favorite Gadget Freak cases from over the years, bringing them together in a dynamic digital edition, complete with videos, which you can view here.

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