Amazon.com: Hosyond 3pcs I2C IIC 1602 LCD Display Module 16x02 LCD 5Pcs IIC I2C 2004 204 20 x 4 Character LCD Display Module Yellow Green Geekcreit for Arduino products that work with official Arduino boards 20x4 Character LCD Display Module with I2C Interface Go2Display Mua Bng Mch Chuyn i Giao Din IIC I2C 2004 20x4 2004A gi r. Description: The IIC 2004 LCD display module is a 4 line 20 character LCD module not only set the contrast control knob selector switch also has a backlight and IIC communication interface. For beginners, not for the cumbersome and complex LCD driver circuit connection and a headache, the real significance of this LCD module will simplify the circuit, this module directly into the Sensor Shield V5. 0 sensor expansion board IIC device interface can, GM 4P sensor connection cable, programmed through the controller, you can easily identify the slogan, sensor data records. Specification: Display: yellow green Supply voltage: 5V Interface: I2C I2C address: 0x27 or 0x3F random delivery Pin definition: GND, VCC, SDA, SCL Contrast adjust: potentiometer Display format: 20 Characters x 4 lines Adjustable backlight The module can be easily interfaced with a MCU Fully assembled and tested serial LCD 20 x 4 module The module is a low power consumption character LCD module with a built in controller It is fantastic for based project Size: 9. 8 x 6 x 1. 2mm Package included: 5 x 2004 LCD display module ,,