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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/