Arduino library for TI PCF8575C I2C IO expander

This is an Arduino class library for the Texas Instruments PCF8575C 16-bit I2C I/O expander:

The library is documented via Doxygen source code comments and a PDF version is available in the downloads section. An example sketch is included with the library.


Does this allow for PWM output with 16 bit resolution? Or is the 16 bit resolution only utilized to read data?

The 16-bit refers to the individual bits which can be read/written. The PCF8575C does not do PWM.