1. Product Overview
The Surenoo SOG128128A_T112 is a 1.12-inch transparent graphic OLED display module featuring a 128x128 pixel resolution. It utilizes a Serial SPI interface for communication and is controlled by the SH1107 driver IC. This module is designed for applications requiring a compact, high-contrast, and transparent display solution.
2. Setup Instructions
This section details the necessary steps to connect and prepare your OLED display module for operation.
2.1 Components Included
- 1.12" 128x128 Transparent Graphic OLED Panel (SOG128128A_T112)
- PCB Adapter (may be pre-soldered depending on variant)
- Connector (for FPC cable)
2.2 Pin Configuration
The module uses a 12-pin Flexible Printed Circuit (FPC) interface. Refer to the table and diagram below for pin assignments and descriptions.
2.3 Electrical Connection
- Power Supply: Connect VDD to a 3.3V power source. Ensure all VSS pins are connected to ground.
- Serial SPI Interface: The module communicates via Serial SPI. Connect SI (Serial Data Input), SCL (Serial Clock Input), CS (Chip Select), A0 (Data/Command Control), and RES (Reset) to your microcontroller's corresponding SPI pins.
- IREF and VCOMH: IREF requires an external resistor connection between the pin and VSS. VCOMH requires a capacitor connected between the pin and VSS. Refer to the full datasheet for specific component values.
- FPC Connection: Carefully insert the FPC cable into the provided connector on the PCB adapter, ensuring correct orientation.
2.4 Datasheets and Resources
For detailed technical specifications, timing diagrams, and electrical characteristics, please refer to the official datasheets:
3. Operating Instructions
Once the module is correctly wired and powered, you can begin programming your microcontroller to send commands and data to the SH1107 controller.
3.1 Display Functionality
- The display supports 128x128 pixel graphics.
- Available pixel colors include Blue, Yellow, and Green. A White color variant is expected to be available in mid-April 2025.
- The transparent nature of the OLED allows for unique visual effects, integrating digital information with physical environments.
3.2 Demonstration Video
Watch this video to see the Surenoo 1.12" 128x128 Transparent OLED Panel in action, showcasing its graphic capabilities and transparency.
4. Maintenance
Proper handling and environmental conditions are crucial for the longevity and performance of your OLED display module.
- Operating Temperature: The module is designed to operate within a temperature range of -40°C to 70°C.
- Storage Temperature: For storage, maintain temperatures between -40°C and 85°C.
- Protective Film: A protective film is present on the front side of the OLED panel. This film MUST be removed before final assembly to ensure optimal transparency and display quality.
- Cleaning: Use a soft, lint-free cloth and a mild, non-abrasive cleaner specifically designed for electronic displays. Avoid excessive pressure.
- Handling: Always handle the module by its edges to prevent damage to the display area or FPC. Avoid touching the active display area directly.
5. Troubleshooting
If you encounter issues with your OLED display module, consider the following common troubleshooting steps:
- No Display/Blank Screen:
- Verify all power connections (VDD, VSS) are correct and stable at 3.3V.
- Check all SPI interface connections (SI, SCL, CS, A0, RES) for proper wiring and continuity.
- Ensure the reset pin (RES) is correctly initialized by your microcontroller. - Incorrect/Garbled Display:
- Double-check your SPI communication protocol and data format in your code.
- Confirm that the SH1107 controller initialization sequence is correctly implemented.
- Ensure the correct IREF resistor and VCOMH capacitor values are used as per the datasheet. - Dim Display:
- Check the power supply voltage (VDD) to ensure it is within the specified range.
- Review the contrast settings in your SH1107 initialization code. - Physical Damage:
- Inspect the FPC cable for any bends, tears, or damage.
- Ensure the FPC is securely seated in its connector.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | SOG128128A_T112 |
| Display Type | Graphic OLED Panel (Transparent) |
| Display Size | 1.12 inch |
| Resolution | 128 x 128 pixels |
| Controller IC | SH1107 (or equivalent) |
| Interface | Serial SPI (12P/0.5) |
| Power Supply (VDD) | 3.3V |
| Display Mode | OLED |
| Glass Type | Transmissive |
| Operating Temperature | -40°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Package Weight | 0.12 kg |
| Package Dimensions (approx.) | 1 cm x 1 cm x 1 cm |
7. Warranty and Support
For any technical assistance, warranty claims, or further inquiries, please contact Surenoo Official Store directly or visit their official website. Always refer to the product datasheet for the most accurate and up-to-date technical information.
8. User Tips
- Careful Handling: Due to the delicate nature of OLED panels and FPC cables, always handle the module with care, avoiding excessive bending or pressure.
- Adapter PCB: Some variants of this display may come with a pre-soldered PCB adapter for easier integration. If your project requires a specific connection method, verify the adapter type before purchase.
- Code Examples: Look for example code or libraries compatible with the SH1107 controller and SPI interface for your chosen microcontroller platform (e.g., Arduino, Raspberry Pi) to accelerate development.
