Frank Zhao Creates “Flat” USB Business Card
November 5th, 2010 link to (permalink)
Inside each of these business cards is a ATtiny85 microcontroller which, upon insertion into a computer and detecting the CAPS-LOCK has been pressed three times, types out a pre-selected set of text into whatever text program is open. To make the ATtiny85 into a USB keyboard, V-USB is used.
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