Product Overview
SmartElex Resistive Touch 2.8-inch HMI Display 320×240
SmartElex Resistive Touch 2.8-inch HMI Display (320×240) is a compact and practical Human Machine Interface solution designed for students, hobbyists, engineers, and early-stage product developers. It allows users to create simple touchscreen controls and visual feedback systems without the need for bulky hardware or complex input devices. This display helps solve the problem of limited user interaction in embedded projects by enabling touch-based navigation, making it a smart choice for classroom learning, workshop experiments, and proof-of-concept designs.
This display is suitable for building interactive control panels in robotics, home automation, industrial automation prototypes, and IoT dashboards. It can be integrated with development platforms such as Arduino, Raspberry Pi, and ESP32 using appropriate interface modules, providing flexibility for different project stages. The reliable touch response and compact form factor make it useful for both prototyping and small production environments, allowing makers and startups to focus on functionality and workflow rather than hardware complexity.
Features:
2.8-inch HMI display with clear 320×240 resolution
Resistive touch interface for dependable input in various environments
Suitable for interactive UI development and touchscreen control panels
Compatible with Arduino, Raspberry Pi, and ESP32 using interface support
Ideal for automation, robotics, IoT dashboards, and educational projects
Compact and durable design suitable for prototyping and small production builds
Technical Specifications
| Model | Basic HMI Display |
|---|---|
| Model No. | SME28_320x240RT |
| Touch Type | Resistive |
| Operating Voltage (VDC) | 4.75 to 7 |
| Max. Operating Current (mA) | 650 |
| Display Layout Size (mm) | 85 × 50 × 12.85 |
| Color | 65K (65536) |
| Recommended Power Supply | 5V, 1A, DC |
| Operating Humidity (%) | 10% to 90% RH |
| USB Interface (Y/N) | Yes – (Only for 5V Input Supply) |
| Micro SD Card Slot (Y/N) | Yes (FAT32 format), supports up to 32GB Micro SD Card |
Use Cases
- 2.8-inch HMI display with resistive touch interface
- Clear 320×240 resolution for compact UI designs
- Works with Arduino, Raspberry Pi, ESP32 (with interface support)
- Ideal for automation, IoT, robotics, and control panels