If you are looking for a compact display module for a DIY desktop clock, car clock, PC secondary display, or custom electronics project, the PPK0279 2.66-inch TFT display module provides a simple and flexible solution.
With a 142 × 428 resolution IPS display, USB Type-C connectivity, optional temperature and humidity sensing, and PC software support, the module can work both as a standalone clock and as a computer-connected secondary display.
A Compact TFT Display for Custom Projects #
The PPK0279 features a compact 2.66-inch TFT LCD display with a PCBA size of approximately 24.5 × 82 mm, making it suitable for projects where installation space is limited.
The IPS panel provides a full viewing angle, allowing the display to remain clearly visible from different directions.
This makes it a practical display platform for DIY electronics, custom enclosures, desktop gadgets, and embedded display projects.
Two Working Modes: Standalone or PC-Connected #
One of the key features of this module is its two working modes.
Offline Mode #
The module can operate independently without being connected to a computer.
In offline mode, it can display:
- Time
- Temperature and humidity information when the optional sensor is installed
This makes it suitable for desktop clocks, decorative clocks, and in-car clock projects.
Online Mode #
When connected to a computer, the module can work as a secondary PC display.
The module can display the clock while also functioning as a compact computer auxiliary screen. Display content and styles can be customized through the PC software.
Customizable Display Styles #
The module supports customized screen display styles through the accompanying PC software.
Connect the module directly to a computer via USB, and you can customize the content and appearance of the display according to your project requirements.
This makes the module more than just a clock—it can serve as a small programmable display for custom desktop setups and electronic projects.
Optional Temperature and Humidity Sensor #
The HJZN0279-C10-A supports an optional temperature and humidity sensor module.
With the sensor installed, the module can display environmental information together with the clock.
This feature can be useful for:
- Desktop weather displays
- Smart desktop accessories
- DIY environmental monitors
- Custom electronic projects
Simple USB Type-C Connection #
The module uses USB Type-C and supports USB/DC 5V power and communication.
This makes connection straightforward for development and everyday use.
The total power consumption of the complete module is less than 1W, making it suitable for compact desktop applications.
Easy Physical Controls #
Three onboard buttons provide convenient control:
S1: Long press for 2 seconds to turn the buzzer sound on or off.
S2: Long press for 2 seconds to adjust the screen backlight brightness.
S3: When connected to a computer, press to switch to secondary-display mode. When disconnected, long press to enter time-setting mode.
This allows basic functions to be controlled directly without requiring a computer.
Designed for DIY and Custom Applications #
The compact size and flexible operating modes make the PPK0279 suitable for a variety of projects, including:
- DIY desktop clocks
- Custom flip-clock projects
- PC secondary displays
- Car clock displays
- Meeting room clocks
- Smart desktop gadgets
- Temperature and humidity displays
- Custom electronics projects
The manufacturer specifically recommends applications such as desktop clock ornaments, car clock ornaments, and meeting clocks.
Technical Specifications #
| Feature | Specification |
|---|---|
| Model | PPK0279 |
| Display | 2.66-inch TFT LCD |
| Resolution | 142 × 428 |
| Panel | IPS, Full Viewing Angle |
| PCBA Size | Approx. 24.5 × 82 mm |
| Interface | USB Type-C |
| Power | USB/DC 5V |
| Power Consumption | ≤ 1W |
| Optional Sensor | Temperature & Humidity |
| PC Software | Windows 10 / Windows 11 |
| Working Temperature | -10°C to +50°C |
| Storage Temperature | -20°C to +60°C |
The PC software is compatible with Windows 10 and Windows 11.
