Nextion 2.4-inch Display NX3224T024: A Versatile HMI Solution for Arduino & Raspberry Pi
The Nextion 2.4-inch Display NX3224T024 is a resistive touchscreen HMI LCD with a resolution of 320×240 pixels. It provides a highly customizable interface for integrating touch controls into projects using Arduino, Raspberry Pi, and other microcontrollers. This blog will explore the Nextion 2.4-inch display, its features, specifications, benefits, and applications in various industries.
What is the Nextion Display?
Nextion is a series of Human-Machine Interface (HMI) displays developed to simplify UI integration into electronics projects. Unlike traditional LCDs that require extensive programming, Nextion displays have built-in processing power, allowing them to manage interface elements independently. The NX3224T024 is a popular model due to its compact size, ease of use, and functionality.
Key Features of Nextion 2.4-inch Display NX3224T024
Resistive Touchscreen
The resistive touchscreen allows for direct interaction, making it ideal for applications requiring user input through buttons, sliders, or navigation controls.
320×240 Resolution
The 320×240 pixel resolution ensures clear and sharp visuals, making it suitable for data displays, graphics, and control elements in a compact form factor.
Preloaded Nextion Editor
Nextion provides a proprietary software tool, the Nextion Editor, which allows users to design interfaces without complex coding. The drag-and-drop functionality enables users to create buttons, text fields, and images effortlessly.
UART Communication
The display operates via UART (Universal Asynchronous Receiver-Transmitter), a widely used communication protocol compatible with Arduino, Raspberry Pi, and other microcontrollers.
Built-in Memory
With 4MB of flash memory, the Nextion 2.4-inch display stores UI designs directly on the screen. Additionally, its EEPROM and RAM manage system data and instructions efficiently.
Standalone Functionality
Unlike traditional displays that depend on a microcontroller, the Nextion display processes interface elements independently, freeing up resources for the main controller.
Compact Size
With dimensions of 85.5mm x 54.1mm x 4.55mm, the display is lightweight and space-efficient, making it suitable for both small and complex applications.
Technical Specifications
| Feature | Specification |
| Model | NX3224T024 |
| Display Size | 2.4 inches |
| Resolution | 320 x 240 pixels |
| Touch Type | Resistive |
| Color Display | 65K (65536) |
| Flash Memory | 4 MB |
| RAM | 3584 bytes |
| EEPROM | 1024 bytes |
| Power Supply | 5V |
| Communication | UART (Serial) |
| Baud Rate | 9600 (default), adjustable 2400-115200 |
| Operating Temp. | -20°C to +70°C |
| Dimensions | 85.5mm x 54.1mm x 4.55mm |
| Weight | 40 grams |
Benefits of Using the Nextion 2.4-inch Display
Ease of Use
The Nextion Editor simplifies interface development by allowing users to visually design elements like buttons, text boxes, and sliders without extensive programming.
Time Savings
With built-in touch control and interface management, the display reduces development time, allowing users to create UIs quickly with the drag-and-drop feature.
Customizability
Users can tailor their UI with personalized images, fonts, and controls, making it suitable for various projects.
Scalability
The Nextion HMI series includes multiple screen sizes, making it easy to scale projects without major modifications.
Reduced Microcontroller Load
Since the display handles touch and graphical processing independently, it allows microcontrollers to focus on other essential tasks.
Applications of the Nextion 2.4-inch Display
Home Automation
Use the Nextion display to control smart home devices, including lighting and temperature systems, through an interactive touchscreen panel.
Industrial Control Panels
Nextion displays are ideal for industrial automation, offering reliable control interfaces for monitoring and operating machinery.
IoT Projects
Whether it’s a smart irrigation system or a weather station, the Nextion display provides a convenient interface for IoT applications.
Medical Devices
The display is suitable for patient monitoring systems and diagnostic devices, allowing users to navigate menus and input data easily.
Automotive Applications
From custom dashboards to navigation systems, the compact Nextion display is perfect for automotive applications where space is limited.
Smart Devices
Integrate the Nextion display into smart appliances like thermostats and kitchen devices for a user-friendly interface.
Conclusion
The Nextion 2.4-inch Display NX3224T024 is a powerful and flexible HMI solution that simplifies UI integration for a variety of projects. Whether for home automation, industrial systems, or IoT applications, this display offers a cost-effective, easy-to-use interface solution. With features like UART communication, resistive touch, and independent processing, the Nextion 2.4-inch display is an essential tool for developers and engineers looking to enhance their projects with an intuitive user interface.