LiquidCrystal_I2C (click this link to download) Run the I2C_address_finder.ino file after connecting I2C to arduino to get the address of I2C on the Serial Monitor because if the address is correct ...

An Arduino, Microchip PIC or any microcontroller with built-in or bit-banged I2C interface can also be used with the I2C LCD interface. A different port expander is used to create an SPI device using ...