An Engineer's Emergency Business Card

It’s more than a clever business card—it’s a survival kit! The beef jerky business card may feed you, but it won’t solve basic electronic problems. Saar Drimer’s hand-soldered card has essential electronic components built right in: two resistors, an LED, an NPN MOSFET and a capacitor.

They form a complete circuit, so when you add some juice, Mr. Drimer’s portrait lights up. You can find design specs here if you want to make your own. Just be careful about giving them out—each one is hand-made.

-via Hack A Day

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