This is a basic 16 character by 2 line LCD display module.
The LCD module displays white text on blue background, and comes with I2C communication interface.
You can use only one line to connect it to microcontroller’s I2C communication interface.
On the back comes with a potentiometer, which can be used to adjust the backlight, with default address 0x27.
It is very easy for you to connect the module to control board for communication using only an RJ11 cable