A little library for a little wire. Providing a pure ruby interface (via the nonpure libusb gem) to littlewire.cc's wonderful gadget. littlewire.rb provides general purpose digital IO, pulse width modulation analog outputs, analog inputs, SPI, I2C, WS2812b, One Wire, and rough servo control via a friendly interface which responds both to familiar Wiring/Arduino style methods and a more concise ruby alternative. LittleWire can be installed on to Digispark devices, offering a very extensive firmata-style option for digispark users.