Brain Jr. is a compact and affordable micro controller platform for artists, students, educators, and professional controller builders. Built on our legendary Builder DIY platform, the Brain Jr provides an ultra compact device for connecting sensors, switches, LEDs, and more. A single USB connection powers Brain Jr. and provides driverless, class-compliant MIDI communication to your computer. Brain Jr. provides an ideal educational tool and professional development platform in a ultra-compact, easy-to-use package.