For 80 years, The LEGO Group has produced building toys for children to enjoy. As technology has advanced, they have introduced some interactive components that were limited in different ways.
The Arduino is an open source microcontroller that allows interaction with all different forms of electronic devices and sensors. It allows for many creative projects that can be controlled by a device that is a small, low-powered computer.
By combining these two flexible systems, myriad projects can be built that can do almost anything—the only limit is your imagination.