This is a RoHS compliant I2C Serial LCD Daughter board that can be connected to a standard HD44780 compatible 16x2 or 20x4 LCD that supports 4 bit mode. This board has a PCF8574 I2C chip that converts I2C serial data to parallell data for the LCD display. The I2C address is 0x3F by default, but this can be changed via 3 solder jumpers provided on the board. This allows up to 3 LCD displays to be controlled via a single I2C bus (giving each one it's own address).

Technical details:

-          Operating voltage of 5V
-          Backlight can be enabled or disabled via on-board jumper
-          Contrast control via on-board potentiometer
-          Dimension of  41.6mm * 19.2mm