When [Matt] came across a small video camera made to fit onto a keychain, the first thing that came to mind is a time-lapse video throwie. Like the LED + coin cell battery + magnet we’ve seen we’ve seen before (and deployed…), [Matt]’s video throwie would be deployed in interesting spots for a few days and shoot a time-lapse video until the battery ran out.

The camera [Matt] picked up has the capability of shooting video or still pictures and writing them to a microSD card. To make his camera film a time-lapse video, [Matt] connected an ATtiny45 to the camera shutter and power buttons and uploaded a short bit of code that would snap a picture ever 15 seconds.

Right now, [Matt] is having a few problems with his video throwie. When the camera is turned on, it iterates through the SD card to find the next unused file name. This eats up a few seconds, so the current setup will slowly speed up the time-lapse video. This isn’t an insurmountable problem, so we’re looking forward to the very interesting videos these tough little cameras will film.

Check out [Matt]’s video of ice melting after the break.

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