HACK THE PLANET SAO — DEF CON 34

Pure analog mischief. No firmware, no I2C handshake, no apologies. A 555 timer clocks a 10-bit ripple counter, and eight of its outputs drive eight LEDs shining up through holes drilled straight into the "Hack the Planet" graffiti art.

▶ See it in action

An onboard trimmer lets you dial the clock anywhere from a lazy heartbeat to a seizure-adjacent strobe.

New for DC34

A button that can be shorted to the odd or the even GPIO of the DEF CON badge's SAO header. What happens next depends entirely on what badge you plugged it into and how forgiving its designer was. We make no promises. That's the feature.

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DEF CON Badge Drop

We'll offer in-person pickup at DEF CON. Please see the schedule at badge.life.

Missed the drop? We can mail your badge or issue a full refund — your choice.