|An Intervalometer for DSLRs
The Intervalometerator is an open source intervalometer for shooting time lapse sequences with a DSLR. It is designed to operate fully off-grid using a battery and solar panel or on-grid, providing full remote access via the web.
It is designed to be cheap and easy to build, assuming you have a few basic tools and a working knowledge of the Raspberry Pi and Arduino microcontrollers. All the code is open source - you'll find it in the project's GitHub repository.