read values from any LM75-Sensor connected to your printer-port (up to 8 pieces) / you need some basic inp/outp control like that from jspayne! This explains a lot about initialising the I2C bus and or the LM75 sensor!
Assumes
added engl. comments for better explaining, removed some un-needed sleep ms's, don't change remaining sleep's, or I2C-bus won't initialize!