I2C Issues - CrowPanel x" -HMI ESP32 Display

I need to use one or more PCF8575s with my HMI displays (7, 5, and 2.8 inches) but I cannot get my PCF8575 IO Expander Module I2C to 16IO to work for the life of me. I read all 8575 related posts here but none of the methods has worked for me. First, what library do you recommend, second, is there sample code I can look at for that library? I am using Arduino IDE. Thanks!