This zip file contains everything necessary to adapt the Arduino libraries to the target board or chip.

Arduino, an open-source hardware pioneer with 32 million active developers worldwide, today announced a strategic partnership with DMC, a consulting f ...

In Sept. 2013, [Squonk42] posted up on the Arduino forums requesting the schematics and editable design files for the Arduino Yun, and he still hasn’t received them or even a response.