1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your SUNGOOYUE S866 Electric Bicycle LCD Display Meter. The S866 display is designed to provide essential riding data and control functions for 24V, 36V, and 48V E-Bikes utilizing the UART communication protocol. Please read this manual thoroughly before using the product to ensure proper function and safety.
2. Safety Information
- Ensure the display is securely mounted to prevent detachment during riding.
- Verify that all connections are properly seated and secured before operation.
- Do not attempt to disassemble or modify the display unit. Unauthorized modifications can lead to malfunction and void the warranty.
- Keep the display away from extreme temperatures and direct sunlight for prolonged periods.
- The display is rated IP65 for water and dust resistance. While it can withstand splashes, avoid submerging the unit in water.
- Always prioritize safe riding practices. Do not operate the display or adjust settings while riding in traffic or hazardous conditions.
- Ensure your E-Bike's communication protocol is UART to ensure compatibility with this display.
3. Product Overview
3.1 Components
- S866 LCD Display Unit
- Integrated Handlebar Mounting Bracket
- Waterproof Connection Cable (UART Protocol)
3.2 Key Features
- Durable Material: Constructed from high-quality ABS material, ensuring lightweight, waterproof, and durable performance for long service life.
- Large Screen Display: The LCD screen provides clear and intuitive viewing of data, making it easier to monitor your E-Bike's status.
- Simple Operation: Designed for easy installation and disassembly, suitable for first-time users.
- Wide Range of Uses: Compatible with 22.2mm/0.9in handlebars, offering broad applicability.
- Clear Visibility: Features a backlight for clear screen visibility even in dark environments, with fast and convenient key operation.
- Waterproof Grade: IP65 rated for protection against dust and water splashes.
- Communication Protocol: Utilizes UART communication protocol.
- Matching Voltage: Supports 24V, 36V, and 48V E-Bike systems.
3.3 Product Views and Dimensions
Front view of the S866 LCD Display Meter, showing the screen and control buttons.
The S866 LCD Display Meter highlighting its waterproof connection plug.
View showing the S866 display unit and its 21cm (8.3in) cable length, indicating UART communication protocol.
Side view of the S866 display, showing approximate dimensions: 8cm (3.1in) length, 4.8cm (1.9in) height, and 2.22cm (0.9in) bracket diameter.
Top and bottom views of the S866 display, illustrating its compact design and mounting bracket.
Detailed diagram of the S866 LCD screen layout and overall dimensions, including button placement.
The S866 LCD Display Meter shown mounted on electric bicycle handlebars, demonstrating its practical placement.
4. Setup
4.1 Installation
- Choose Location: Select a suitable position on your E-Bike's handlebar for the S866 display. The integrated bracket is designed for 22.2mm (0.9in) handlebars.
- Mount Display: Open the handlebar mounting bracket and position the display. Securely tighten the bracket screw to ensure the display is firm and does not rotate during riding.
- Connect Cable: Locate the corresponding UART communication port on your E-Bike's controller. Connect the waterproof plug from the S866 display to this port. Ensure the connection is firm and fully seated to prevent water ingress and ensure proper communication.
4.2 Initial Power-On and Connection Check
After installation, power on your E-Bike. The S866 display should illuminate and show initial readings. If the display does not power on or shows an error, double-check all cable connections and ensure your E-Bike's communication protocol is compatible (UART).
Video demonstrating the physical connection and initial power-on of the S866 LCD Display Meter.
5. Operating Instructions
5.1 Power On/Off
- To power on the display, press and hold the Power button (usually the middle button with a power symbol) for a few seconds until the screen illuminates.
- To power off the display, press and hold the Power button again until the screen turns off.
5.2 Display Interface and Buttons
The S866 display features a clear LCD screen and three control buttons: Plus (+), Power (⏻), and Minus (-).
- Plus (+) Button: Used to increase values, navigate up in menus, or increase assist levels.
- Power (⏻) Button: Used to power on/off the display, confirm selections, or switch display modes.
- Minus (-) Button: Used to decrease values, navigate down in menus, or decrease assist levels.
5.3 Displayed Information
The S866 display provides real-time information about your E-Bike's status, including:
- Speed: Current riding speed (km/h or mph).
- Battery Level: Indication of remaining battery charge.
- Assist Level: Current pedal assist level (e.g., 1-5).
- TRIP: Distance traveled for the current trip.
- ODO: Total accumulated distance.
- VOL: Battery voltage.
- TIME: Riding time.
5.4 Parameter Settings (P-Settings)
The S866 display allows for adjustment of various parameters to customize your riding experience. To enter the parameter setting mode, typically press and hold the Plus (+) and Minus (-) buttons simultaneously for a few seconds while the display is on.
Navigate through the parameters using the Plus (+) and Minus (-) buttons. Press the Power (⏻) button to select a parameter and adjust its value. Press the Power (⏻) button again to confirm the new value. Exit the settings by holding the Power (⏻) button or waiting for a timeout.
Note: Specific parameter numbers and their functions may vary slightly. Refer to your E-Bike's controller manual for detailed P-setting definitions if available.
Video demonstrating how to access and adjust parameter settings on the S866 LCD Display Meter.
6. Maintenance
- Cleaning: Wipe the display screen and body with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the screen or casing.
- Water Resistance: The IP65 rating means the display is protected against low-pressure water jets from any direction. However, avoid high-pressure washing directly on the display or prolonged submersion.
- Cable Inspection: Periodically check the connection cable for any signs of wear, cuts, or damage. Ensure the waterproof plug remains clean and free of debris.
- Storage: If storing your E-Bike for an extended period, ensure the display is clean and dry. Store in a cool, dry place away from direct sunlight.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display does not power on. | No power from E-Bike battery; Loose cable connection; Incompatible communication protocol. | Ensure E-Bike battery is charged and turned on. Check all cable connections, especially the waterproof plug. Verify your E-Bike uses UART communication protocol. |
| Display shows an error code (e.g., "Error 10"). | Communication error; Sensor malfunction; Controller issue. | An "Error 10" often indicates a communication protocol mismatch or issue. Ensure the display is compatible with your controller's UART protocol. Consult your E-Bike's controller manual for specific error code definitions and troubleshooting steps. Reconnect all cables. |
| Incorrect speed or distance readings. | Incorrect wheel diameter setting; Speed sensor issue. | Access the P-settings (refer to Section 5.4) and verify the wheel diameter setting matches your E-Bike's wheel size. Check the speed sensor for proper installation and function. |
| Buttons are unresponsive. | Temporary software glitch; Physical damage to buttons. | Try powering off and on the display. If the issue persists, inspect the buttons for physical damage. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | SUNGOOYUE |
| Model | S866 |
| Material | ABS |
| Display Type | LCD |
| Display Resolution | 128x160 |
| Waterproof Grade | IP65 |
| Communication Protocol | UART |
| Matching Voltage | 24V, 36V, 48V |
| Mounting Type | Handlebar Mount (22.2mm / 0.9in diameter) |
| Human Interface Input | Buttons |
| Item Weight (Approx.) | 0.1 Kilograms (106g / 3.7oz) |
| Cable Length (Approx.) | 21cm / 8.3in |
9. Warranty and Support
For any questions, technical assistance, or warranty inquiries regarding your SUNGOOYUE S866 Electric Bicycle LCD Display Meter, please contact the seller or manufacturer directly. Please retain your purchase receipt as proof of purchase for warranty claims.
For more information about SUNGOOYUE products, you may visit the official SUNGOOYUE Store: SUNGOOYUE Store