I’ve been a huge fan of the Arduino for quite a few years now. It allows me control cameras and lights in ways that would be otherwise impossible. As an open source project based on the Atmel AVR microcontrollers, compatible boards come in all shapes and sizes now. One such incarnation is the Adafruit Trinket, a tiny Arduino clone based on the ATtiny85. It’s extremely small, and ideal for projects like this one.
To show off the Trinket’s abilities, the folks at Adafruit built a tiny timelapse camera. Using a mini spy camera module with a built in microSD slot, the Trinket controls all the timing for when shots are taken. The whole thing fits inside a matchbox, but Adafruit are a little more practical than that. They designed a custom case for 3D printing and made the plans for that available, too.