Weewooday 4set Iic TWI I2c LCD Serial Interface Adapter and Liquid Crystal Display Module Display Backlight Compatible with Arduino R3 Mega2560(LCD 1602 16 x 2,Blue)

Price: $14.99
(as of Feb 11, 2026 20:57:24 UTC – Details)



Features:
Good function:
The LCD with I2C port greatly enriches the human-computer interaction functions, and when they are connected to the controller, the controller without too many external ports, and will not restrict other functions of the controller. It has only two bidirectional data lines, a serial data line and a serial clock.
Specifications:
Display: 2 lines x 16 characters
Four Pin Definition: GND, VCC, SDA, SCL
Default I2C bus address: 0 x 3F for PCF8574AT chip, 0 x 27 for PCF8574T chip
Working voltage: 5V
Adjust Contrast: potentiometer
Adjust Backlight: jumper
Package includes:
4 x Lcd display
4 x I2C serial interface
Warm notes:
Manual measurement, please allow slight errors on size, and the color might exist slightly difference due to different displays.
Components: LCD display with i2c serial interface backpack; LCD screen can display 2 lines x 16 characters; The i2c LCD adapter built in industry standard equivalent LCD controller
Default Address: 0 x 27 for PCF8574T chip; 0 x 3F for PCF8574AT chip; Please kindly check the chip of the i2c interface; ( Please remember to download the I2C library on GitHub before uploading the code to the control board)
Compatibility: 1602 icd display with I2C serial interface is compatible with Arduino and compatible with Raspberry pi; Working voltage: 5V; To come with a potentiometer, which is applied to adjust backlight and contrast; How to wire: GND GND; VCC VCC; SDA A4; SCL A5
Application: LCD module is applied to display letters, characters, numbers, real time clock and temperature
Display function: 1602 icd display with I2C serial interface can be applied to display real time clock, temperature, humidity and so on; (A potentiometer is also necessary to adjust the contrast; Working Voltage: Only 5V )