This display is a 2004 4-line, 20-digit alphanumeric LCD with HD44780 display controller and a standard 4/8-bit parallel interface.

Particularities

Thanks to the 8 selectable I2C addresses, 6 displays can be operated simultaneously.
With the included jumper and potentiometer you can control the contrast of the display and the backlight independently from the code.

Technical specifications

Dimensions	98 mm x 60 mm x 14 mm
Resolution	20 characters x 4 lines
LCD type	STN, positive, transflective, blue
Backlight	Blue
Modes	Parallel (8-bit and 4-bit)
I2C adapter / I2C address	0x27; Address can be selected – area 0x20 to 0x27
Operating voltage	5V
Operating temperature	From -20 C to +70 C