Sound activated flash for high speed photography

High speed video is everywhere these days, but the cameras and necessary equipment is a bit out of reach for a hobbyist. [Bassam] found a compromise and came up with a way to shoot high-speed photographs using a sound triggered flash.

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Sound activated christmas lights

speaker_lights

Christmas is coming up pretty quickly. [tinkernut] shows us how to do a quick and dirty music activated Christmas light setup. Simply crack open a pair of old computer speakers and wire the speaker leads to a relay. Use that to power an outlet and you have music controlled lights. The section at the beginning of the video is a bit misleading as that kind of choreography would be rather difficult with this setup. This may look familiar as we mentioned an almost identical project back in 2006.

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