adafruit/Adafruit-Raspberry-Pi-Python-Code — pull request #100 by deckerego (2014-11-21 22:42:35+00:00)
Title: Add support for Raspberry Pi B+ and A+

Modified based on the revision data available at http://elinux.org/RPi_HardwareHistory . The new A+ and B+ RasPi boards report versions at the second byte (0x0010 for B+, 0011 for Compute Module, 0012 for A+) which throws off the PCB Revision numbering.