LEGO is doing really good by offering free software-, firmware-, and hardware developer kits for their stuff. Their official firmware is even open source under

LEGO is doing really good by offering free software-, firmware-, and hardware developer kits for their stuff. Their official firmware is even open source under a GNU license. You can actually view the electric schematics for the MINDSTORMS hardware. The resulting community support for various custom sensors and languages is awesome. They are also being a good internet citizen by allowing downloading without any account registration. https://education.lego.com/en-us/support/mindstorms-ev3/developer-kits https://education.lego.com/en-us/support/mindstorms-ev3/deve... https://en.wikipedia.org/wiki/Lego_Mindstorms#Programming_languages_2 https://en.wikipedia.org/wiki/Lego_Mindstorms#Programming_la...