The basic 16×2 LCD is an extremely popular component that ... make it so easy to work with; if you’ve got an I2C variant of the display, it only takes four wires to drive it.

To link a standard 16×2 LCD directly with the microcontroller, for instance Arduino, you would need atleast 6 I/O pins to talk to the LCD. However, if you use an LCD module with I2C interface, you ...