Features for 1602 LCD:
LCD display module with blue blacklight.
Wide viewing angle and high contrast.
Built-in industry standard HD44780 equivalent LCD controller.
Commonly used in: copiers, fax machines, laser printers, industrial test equipment,
networking equipment such as routers and storage devices.
LCM type: Characters
Can display 2-lines x 16-characters.
Voltage: 5V DC.
Module dimension: 80mm x 35mm x 11mm.
Viewing area size: 64.5mm x 16mm

Features IIC/I2C :
For Arduino 1602 I2C interface 4-wire 1602 screen
IO port of For Arduino control board is only 20, so IO ports is not enough for many sensor, SD card, relay modules.
The original 1602 screen need 7 IO ports to drive up, and this module can save 5 IO ports
This is another great IIC/I2C/TWI/SPI Serial Interface. With this I2C interface module, you will be able to transfer data via only 2 wires. If you already have I2C devices in your project, this LCD module actually cost no more resources.
I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself)
Supply voltage: 5V
the backlight and contrast is adjusted by potentiometer
Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
I2C Address: 0x27 (I2C Address: 0X20~0X27 (the original address is 0X27,you can change it yourself)
Compatible with 1602 LCD

Package included:
2Pcs 1602 BLUE LCD 16x2 HD44780 with IIC I2C Serial Interface Adapter Module (soldered to display module)