✅ LCD 20x4 I2C Display

Uses

Display sensor readings (temperature, humidity, etc.)

Show user interfaces for embedded devices

Monitoring system status on projects

Functions

Displays up to 4 lines with 20 characters each

Uses I2C interface for easy wiring (only 2 pins required)

Can display both static and dynamic

Features

Blue backlight with white characters

Adjustable brightness via potentiometer

Compatible with Arduino, ESP8266, ESP32

Requires only SDA and SCL pin