20×4 LCD Display Module with I2C Interface – Yellow-Green Backlight
₵78.00
Large 20×4 character LCD with a pre-soldered I2C interface for Arduino, ESP32, Raspberry Pi and embedded projects. The display provides four lines of information while requiring only four connections, making it ideal for sensor monitoring, menus, instrumentation and beginner-friendly electronics projects.
Display: 20 Characters × 4 Lines
Backlight: Yellow-Green
Supply: 5V DC
Interface: I2C
Connections: VCC, GND, SDA, SCL
Contrast: Adjustable onboard potentiometer
I2C Backpack: Pre-soldered
Best For: Monitoring systems, IoT, Arduino, robotics and STEM projects
5 in stock
The 20×4 LCD Display Module with I2C Interface is a character display capable of showing 20 characters across four lines, providing more display space than standard 16×2 LCD modules. It is ideal for projects that need to display multiple sensor readings, menus, status information or system parameters simultaneously.
This version comes with the I2C backpack already soldered, allowing communication using only four connections: VCC, GND, SDA and SCL. This greatly simplifies wiring, saves microcontroller GPIO pins and makes the display particularly suitable for beginners, students and prototyping applications.
The module features a clear yellow-green backlight with dark characters and an onboard potentiometer for adjusting display contrast. It works with Arduino, ESP32, STM32, Raspberry Pi and other controllers that support I2C communication.
Technical Specifications
| Specification | Details |
|---|---|
| Display Type | Alphanumeric Character LCD |
| Display Format | 20 Characters × 4 Lines |
| Total Characters | 80 |
| Backlight Colour | Yellow-Green |
| Character Colour | Dark / Black |
| Interface | I2C |
| Connections | VCC, GND, SDA, SCL |
| Supply Voltage | 5V DC |
| LCD Controller | HD44780-Compatible |
| I2C Interface IC | PCF8574 / Compatible |
| Contrast Adjustment | Onboard Potentiometer |
| Character Matrix | 5 × 8 Dots |
| Typical Module Size | Approx. 98 × 60mm |
| I2C Backpack | Pre-Soldered |
| Soldering Required | No |
| Compatible Platforms | Arduino, ESP32, ESP8266, STM32, Raspberry Pi |
Applications
- Sensor monitoring systems
- Arduino and ESP32 projects
- IoT dashboards
- Weather stations
- Energy monitoring systems
- Battery monitoring
- Menu and control interfaces
- Industrial prototypes
- Robotics
- STEM and educational projects
Package Includes
1 × 20×4 Yellow-Green LCD Display with Pre-Soldered I2C Interface
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