Wiring and Instant Soup
Wiring, a sister project to processing, is a programming environment and electronics i/o board for exploring the electronic arts, tangible media, teaching and learning computer programming and prototyping with electronics. It illustrates the concept of programming with electronics and the physical realm of hardware control which are necessary to explore physical interaction design and tangible media aspects
Wiring is an open project initiated by Hernando Barragán at the Interaction Design Institute Ivrea and it is currently developed at the University of Los Andes.
InstantSoup is a related project which uses wiring & flash as the technology behind a set of well-designed tutorials.