Specifications: Display: 4-lines x 20-characters Four Pin Definition: GND, VCC, SDA, SCL Default I2C bus address: 0 x 27 for F8574T chip Working voltage: 5V Adjust Backlight: Potentiometer Package includes: 3 x LCD module 1 x 10pin F-M jumper wires See more

Widely used in: Internet of Things, school electronics projects, smart buildings, maker DIY projects, etc., can display letters, characters, numbers, real-time clock or temperature. Built-in independent potentiometer, backlight can be adjusted through the back potentiometer. Power supply: 5v; I2C address: 0x27; wiring method: GND—GND, VCC—VCC, SDA—A4, SCL—A5. Compatible with most development boards, such as Arduino, Raspberry pi, Tinkerboard, Nano pi, Banana pi, stm32, etc. 2004 LCD screen can display 4 lines x 20 characters, with i2c serial interface, blue display.