This is another great IIC/I2C/TWI/SPI serial interface. As the pin resources for the Arduino controller are limited, your project may not be able to use a normal LCD shield after being connected to a certain quantity of sensors or an SD card. However, with this I2C interface module, you will be able to realize data display via only two wires. If you already have I2C devices in your project, this LCD module actually costs no more resources at all. It is fantastic for an Arduino-based project.

Features:

• I2C Address: 0X20 to 0X27 (the original address is 0X20; you can change it yourself.)
• Supply voltage: 5V
• the backlight and contrast are adjusted by potentiometer
• It comes with two IIC interface, which can be connected by Dupont Line or IIC-dedicated cable
• Compatible for 1602 LCD and 2004 LCD