Hello!
I am use LCD display on the S1D13700, but i want connect over i2c with PCF8574.
I found an example of the connection
http://www.cafelogic.com/2011/new-s1d13700-beta-library-for-arduino/
But I need a library with PCF8574 and how connect Lcd with PCF8574 and arduino Nano v.3