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An Experiment with a PCB Business Card http://jwcxz.com/projects/bcard
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bcard http://jwcxz.com/projects/bcard bcard is an experimental attempt to make cheap electronic business card on a thin PCB. The main goals are for it to be: - cheap - not gaudy - not stupid As awesome as it would be to make the card appear as a USB flash device that contains my resume, that would be a bit too expensive. One alternative, is this design: http://www.instructables.com/id/USB-PCB-Business-Card/ But somebody already made it :) Other designs are much more expensive. http://mikepuchol.com/my-pcb-business-card/ http://electronoblog.allanw.org/2011/08/yet-another-pcb-business-card-with-touchpad/ http://www.youtube.com/watch?v=gSN2SAgYy7M http://www.chasingtrons.com/main/tag/business-card My design incorporates a capacitive touch sensor with some blue LEDs around the corners. The blue LEDs are actually mounted upside-down so that the card fluoresces. Cost of parts is about $1.80 in quantities of 25 (at Digi-Key prices). At quantities of 100, the cost per board is $1.54. The majority of the cost is in the 4 LEDs and the microcontroller. You can shave off a few cents by going with an ATTiny4 instead of an ATTiny10. IDK, it's cute. Software Used: Board Design: Kicad http://kicad.sf.net Inkscape http://inkscape.org Firwmare: AVRA http://avra.sf.net AVRDUDE http://www.nongnu.org/avrdude/