After several months, eight versions, and countless 3D-printed prototypes, the team produced a completely open-source device: Mycroft. Users speak commands to the physical interface, which then controls devices like smart locks or speakers, posts to social media, and performs dozens of other tasks. An Arduino board and Raspberry Pi 2 make up the bulk of the hardware, and the team plans to release its code. As developers add their own functions, Sipes hopes the AI will grow smarter over time—just like its prototypes did.
This article was originally published in the December 2015 issue of Popular Science, under the title "The Ultimate DIY AI."