adafruit/Adafruit-MCP23008-library — pull request #1 by romilly (2012-04-02 14:43:54+00:00)
Title: fixed GPIO read and added automated test sketch

The previous version read OLAT instead of GPIO.

We've added automated tests which require a simple test harness that uses Arduino digital pins to read from/write to the MCP23008 ports to verify the library code.

We will happily add library code and tests to cover interrupts and pull-up functionality if that would be useful.