an open source programming environment and electronics i/o board for exploring the electronic arts, tangible media, teaching and learning computer programming and prototyping with electronics.
is short for Replicating Rapid-prototyper. It is a practical self-copying. Complete open-source instructions and plans are published on this website for zero cost and available to everyone so, if you want to make one yourself
CHDK, the Canon Hacker's Development Kit, is an open-source software project that can be loaded on cameras using Canon's DIGIC II or DIGIC III firmware platforms.