1. Product Overview
The UeeKKoo RGB-Matrix-P2.5-64x32 is a full-color RGB LED dot matrix module featuring a 64 × 32 pixel resolution and a 2.5mm pitch. It integrates 2048 individual RGB LEDs, offering a full-color display with adjustable brightness. This panel is designed to display text, colorful images, or animations.
Its physical dimensions are 160 mm × 80 mm. The panel incorporates GOB (Glue On Board) technology, which provides enhanced protection against collision, water, moisture, and dust, improving durability and operational reliability.
The panel supports a chainable design, allowing multiple LED matrix panels to be connected together via HUB75 input/output headers to create larger display surfaces. It features onboard dual HUB75 headers, one for controller data input and one for output, facilitating this chaining capability.
Typical usage scenarios include DIY desktop or wall-mounted displays, signboards, and environmental monitors. The panel is compatible with various microcontrollers such as Raspberry Pi, Raspberry Pi Pico 2W, and ESP32.
Image 1.1: The UeeKKoo RGB-Matrix-P2.5-64x32 GOB LED Matrix Panel in operation, displaying text and graphics. This image illustrates the panel's compact size and vibrant display capabilities.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1 × RGB-Matrix-P2.5-64x32 GOB matrix panel
- 1 × VH4 2PIN cable (~500mm)
- 1 × 16PIN flat cable (~200mm)
- 1 × Power supply terminal adapter
- 1 × 2 × 8PIN cable (~30cm)
- 1 × Magnetic screws pack (4 PCS)
Image 2.1: All components included in the package. This image shows the LED matrix panel, various connecting cables, a power adapter, and magnetic screws.
3. Features
- High Resolution Display: 64 × 32 pixels, 2.5mm pitch, with 2048 individual RGB LEDs for full-color display.
- Adjustable Brightness: Supports brightness control for various lighting conditions.
- GOB Technology: Provides anti-collision, waterproof, moisture-proof, and dust-proof protection for enhanced durability.
- Chainable Design: Equipped with dual HUB75 headers for chaining multiple panels to create larger displays.
- Wide Compatibility: Compatible with Raspberry Pi, Raspberry Pi Pico 2W, ESP32, and Arduino for display output.
- Versatile Applications: Suitable for DIY desktop/wall mount displays, signboards, and environmental monitors.
- Development Resources: Comprehensive SDK, development resources, and tutorials are available to assist with integration and programming.
Image 3.1: Visual representation of the panel's features, including GOB display technology and key specifications.
4. Specifications
| Parameter | Value |
|---|---|
| Dimensions | 160 × 80 mm |
| Pixels | 64 × 32 = 2048 DOTS |
| Pitch | 2.5mm |
| Pixel Form | 1R1G1B |
| Viewing Angle | ≥140° |
| Control Type | Synchronization |
| Driving | 1/16 scan |
| Header | HUB75 |
| Power Supply | 5V / 2.5A (VH4 header input) |
| Power Consumption | ≤12W |
Image 4.1: Detailed dimensions of the LED matrix panel, showing its length, width, and thickness.
5. Setup and Connections
5.1 Power Supply
The LED matrix panel requires a 5V / 2.5A power supply connected via the VH4 header input. When chaining multiple panels, each panel requires a standalone 5V / 2.5A or higher power source to ensure stable operation and prevent voltage drops.
5.2 Data Input/Output (HUB75)
The panel uses HUB75 headers for data input and output. There are two HUB75 headers onboard: one for receiving data from the controller and another for outputting data to subsequent chained panels.
5.3 Header Pin Definitions
Refer to the diagram and table below for the pin definitions of the HUB75 headers. Proper connection of these pins to your microcontroller is crucial for correct display operation.
Image 5.1: Back view of the LED matrix panel illustrating the data input and output headers with pin labels. Note that PCB silkscreen and layout may vary slightly between batches.
| Pin | Description | Pin | Description |
|---|---|---|---|
| +5V | 5V power input | GND | Ground |
| R1 | R higher bit data | R2 | R lower bit data |
| G1 | G higher bit data | G2 | G lower bit data |
| B1 | B higher bit data | B2 | B lower bit data |
| A | A line selection | B | B line selection |
| C | C line selection | D | D line selection |
| E | E line selection | CLK | Clock input |
| LAT/STB | Latch pin | OE | Output enable |
6. Operating Instructions
To operate the UeeKKoo RGB-Matrix-P2.5-64x32 panel, you will need a compatible microcontroller (e.g., Raspberry Pi, Raspberry Pi Pico 2W, ESP32, or Arduino) and appropriate software libraries.
6.1 Software and Development Resources
Comprehensive SDKs, development resources, and tutorials are available to help you get started with programming the display. These resources typically include example code for various microcontrollers, demonstrating how to display text, images, and animations.
For detailed instructions and code examples, please visit the official development resources page: bit.ly/42RELpY
6.2 Displaying Content
Once connected and configured, you can program your microcontroller to send data to the LED matrix. The available libraries will provide functions to control individual pixels, draw shapes, display text, and render animations. Ensure your code correctly addresses the 64x32 pixel resolution and utilizes the HUB75 interface protocol.
7. Maintenance
The UeeKKoo RGB-Matrix-P2.5-64x32 GOB LED Matrix Panel is designed for durability and ease of maintenance due to its GOB (Glue On Board) technology.
7.1 GOB Protection Technology
The GOB coating effectively enhances the anti-collision capability of the LED display, reducing the risk of LED damage during handling, transportation, and installation. This makes it particularly suitable for small-pitch LED displays.
The surface of the GOB display is waterproof and moisture-proof, supporting wet cloth cleaning for easier daily maintenance. This coating also reduces the impact of humidity and dust on LED solder joints, enhancing durability and effectively lowering the dead-pixel rate.
Image 7.1: Illustration of the GOB protection technology, highlighting its anti-collision and waterproof properties.
7.2 Cleaning
To clean the display surface, gently wipe it with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the GOB coating.
8. Troubleshooting
If you encounter issues with your UeeKKoo RGB-Matrix-P2.5-64x32 GOB LED Matrix Panel, consider the following troubleshooting steps:
8.1 Display Not Lighting Up
- Power Connection: Ensure the 5V / 2.5A power supply is correctly connected to the VH4 header and is providing sufficient power. Check for loose connections.
- Controller Power: Verify that your microcontroller (e.g., Raspberry Pi, ESP32) is powered on and functioning correctly.
8.2 Incorrect or Partial Display (e.g., Alternating Rows Not Displaying)
- Wiring: Double-check all HUB75 data connections between the panel and your microcontroller. Incorrect wiring is a common cause of display anomalies. Refer to the "Header Pin Definitions" section (5.3).
- Voltage Buffering: If using a 3.3V microcontroller (like Raspberry Pi Pico or ESP32), ensure proper 3.3V-to-5V buffering is implemented for the HUB75 signals. Direct connection without buffering can lead to unreliable display output.
- Software Configuration: Verify that your software library and code are correctly configured for a 64x32 pixel, 2.5mm pitch, 1/16 scan HUB75 panel. Incorrect scan rate or resolution settings can cause display issues.
- Data Integrity: Ensure the data signals are clean and free from interference. Use appropriate cable lengths and shielding if necessary.
8.3 Flickering or Unstable Display
- Power Supply: Insufficient or unstable power can cause flickering. Ensure your 5V power supply can deliver at least 2.5A, especially if the display is showing bright content. For chained panels, ensure each has adequate power.
- Grounding: Ensure all components (panel, microcontroller, power supply) share a common ground.
- Refresh Rate: Check your software's refresh rate settings. An incorrect refresh rate might lead to visual artifacts.
For further assistance, consult the comprehensive SDK, development resources, and tutorials provided at bit.ly/42RELpY.
9. Warranty and Support
9.1 Warranty
Technical support is provided for the UeeKKoo RGB-Matrix-P2.5-64x32 GOB LED Matrix Panel. For specific warranty terms and conditions, please refer to your purchase documentation or contact UeeKKoo customer service.
9.2 Technical Support
For technical inquiries, programming assistance, or troubleshooting beyond the scope of this manual, please utilize the comprehensive SDK, development resources, and tutorials available online:
- Online Resources: bit.ly/42RELpY
These resources offer detailed guides, example code, and community forums that can assist with advanced usage and problem-solving.
