Cool DIY LED Business Card


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If you want a flashy, attention catching business card, this one is for you. This business card is an LED business card that flashes your name and contact info. The best thing about it is that you can assemble one yourself!

“The design is really quite simple for what it does – a matrix of 5×15 LEDs, connected to a single-chip “PIC”microcontroller. A handful of resistors and switches complete the design (Schematic available below). By keeping the microcontroller in sleep mode unless the buttons are pressed, the battery can last several years, and still allow a couple of thousand displays of your messages.”

The instruction pdf manual is available at  Instructables.