Developer - Entrepeneur - Rockstar

Arduino

According to Arduino itself, "arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. it's intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments."

What can I say more? Need I say more? Probably not, everyone seems to work with arduino these days, you know how awesome and easy to work with it is.