Python MCP230XX I2C IO Expander Tools ------------------------------------- A couple of basic tools I knocked up while playing with the MCP23017 on my Raspberry Pi. More info on my blog here: http://nathan.chantrell.net mcp23017.py ----------- A simple command line tool for setting outputs as high or low. Usage: mcp23017.py -b <bank> -o <output> -s <high|low> eg. to set GPA1 high: mcp23017.py -b a -o 1 -s high Response: Output GPA1 changed to high Requires python-smbus mcp23017.wsgi ------------- A web interface using Python and modwsgi. Can be controlled through the built in web form or via GET requests with optional JSON like responses. eg. to set output GPA1 high: http://rpi/mcp23017.wsgi?bank=a&output=1&state=high&mode=json Response: {"GPA1":"HIGH"} Requires python-smbus and apache with mod-wsgi. Note that you will need to make sure your web server has permissions for the i2c bus, eg. /dev/i2c-0 To do: Extend to cater for input as well as output and report on the current state of the outputs.