NX3224 2.8 HMI LCD Touch Display | Nextion Basic Series | UART Interface
₹45.00₹80.00 (price_including_tax) (-44%)
Experience seamless human-machine interaction with the NX3224T028 2.8-inch HMI LCD Touch Display. This powerful module transforms complex control interfaces into intuitive, user-friendly experiences for embedded systems. Engineered for durability and high-performance, it guarantees reliable operation in diverse applications.
This 2.8-inch HMI LCD offers robust visual interaction, streamlining embedded system development with its integrated touch control.
Effortlessly create stunning interfaces with drag-and-drop tools, no complex graphics coding needed.
Dedicated processor handles display rendering, freeing microcontroller for core application tasks.
Resistive touch ensures reliable interaction in industrial or challenging environmental conditions.
The Engineering Behind NX3224T028
The NX3224T028 is a fundamental member of the Nextion Basic Series, an advanced Human Machine Interface (HMI) solution designed to simplify the development of graphical user interfaces for embedded systems. At its core, this display integrates a powerful ARM Cortex-M0+ based 48MHz processor, dedicated flash memory for UI projects, and an intelligent display controller. It operates by interpreting high-level serial commands sent via a UART interface, eliminating the need for complex graphical programming on the host microcontroller and offloading significant processing overhead.
Constructed with industrial-grade components, the display features a 4-wire resistive touch panel for reliable input in various environments, even with gloves. The robust PCB design ensures stable electrical characteristics and long-term operational stability, making it suitable for both hobbyist projects and demanding industrial control applications where reliability is paramount.
Integrated UI Development Environment
A primary feature of the NX3224T028 is its compatibility with the Nextion Editor, a free, intuitive drag-and-drop development software. This powerful tool allows users to design rich graphical interfaces, add components like buttons, progress bars, and text fields, and define interactions without writing a single line of display-specific code. This dramatically accelerates UI development cycles and reduces the learning curve for engineers and makers alike.
High-Speed UART Serial Communication
The display communicates with host microcontrollers (like Arduino, Raspberry Pi, or ESP32) using a standard 3.3V/5V TTL serial (UART) interface. This elegant communication protocol simplifies wiring and integration, requiring only RX, TX, GND, and VCC connections. This structural choice resolves traditional pain points associated with complex parallel display bus interfaces or demanding SPI/I2C protocols, enabling faster data transfer and easier debugging for embedded applications.
Optimized for Performance & Integration
- Display Type: Resistive Touch TFT LCD
- Screen Size: 2.8 inches
- Resolution: 320×240 pixels
- Color Depth: 65K Colors (16-bit)
- Communication Interface: UART (TTL)
- Operating Voltage: 4.75V to 7V (5V recommended)
- Onboard Flash Memory: 4MB for user interface data
- RAM: 3584 Bytes
Features & Benefits
- 2.8-inch Resistive Touchscreen: Provides intuitive tactile input for robust human-machine interfaces.
- 320×240 Pixel Resolution: Delivers clear, vibrant graphics suitable for diverse embedded applications.
- Integrated ARM Cortex-M0+ MCU: Offloads UI processing from the host microcontroller, enhancing system performance.
- UART Serial Interface: Simplifies wiring and communication with microcontrollers like Arduino or ESP32.
- Nextion Editor Compatibility: Enables rapid drag-and-drop graphical user interface development without complex coding.
- 4MB Onboard Flash: Stores extensive UI designs, images, and fonts for rich user experiences.
Pro-Grade Advantages
- Streamlined UI development with Nextion Editor.
- Reduces microcontroller resource usage significantly.
- Simple UART communication for easy integration.
- Reliable resistive touch suitable for industrial use.
Technical Considerations
- Limited advanced graphical effects compared to high-end displays.
- Requires external tooling (Nextion Editor) for UI compilation and upload.
What microcontrollers are compatible with the NX3224T028?
The NX3224T028 is compatible with any microcontroller featuring a UART serial port, including popular platforms like Arduino, ESP32, Raspberry Pi (via serial pins), and STM32 boards.
How do I design the user interface for this HMI display?
The user interface is designed using the free Nextion Editor software, which provides a visual drag-and-drop environment for creating pages, buttons, text fields, and other GUI elements.
What is the operating voltage range for the NX3224T028?
This display operates reliably within a voltage range of 4.75V to 7V, with 5V being the recommended supply voltage for optimal performance.
Does the NX3224T028 support touch input?
Yes, the NX3224T028 features a 4-wire resistive touch panel, enabling interactive input for your embedded applications.
Can I display images and animations on the screen?
Yes, you can upload images, custom fonts, and even basic animations to the display’s 4MB onboard flash memory using the Nextion Editor for a richer user experience.
What is the significance of HMI in embedded systems?
HMI (Human Machine Interface) in embedded systems provides a visual and interactive means for users to control, monitor, and interact with a device or machine, simplifying complex operations.
| Specification | Value |
|---|---|
| Model | NX3224T028 |
| Screen Size | 2.8 inches |
| Resolution | 320×240 pixels |
| Color Depth | 65K (16-bit) |
| Touch Type | 4-wire Resistive |
| Flash Memory | 4MB |
| RAM | 3584 Bytes |
| MCU | 48MHz ARM Cortex-M0+ |
| Interface | Serial UART (TTL) |
| Input Voltage | 4.75V – 7V (5V Typical) |
| Current Consumption | 90mA (Idle, 5V) |
| Active Area | 57.6 x 43.2 mm |
Additional information
| Weight | 0.02 kg |
|---|---|
| Dimensions | 8.04 × 4.89 × 0.48 cm |
| Brand | NX3224 |
| Technology | Resistive Touch TFT LCD |
| Processor/SoC | ARM Cortex-M0+ |
| Operating Voltage | 4.75V – 7V |
| Control Interface | UART TTL |
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