1. Introduction
1.1 Product Overview
The YDLIDAR G6 is a sophisticated 360-degree two-dimensional range measuring system developed by EAI. This sensor utilizes the triangulation ranging principle, integrating advanced optical, electrical, and algorithmic designs to achieve high-frequency and high-precision distance measurements. Its mechanical structure rotates 360 degrees, continuously acquiring angle information to perform comprehensive scanning and output environmental point cloud data.

Figure 1: YDLIDAR G6 25M LiDAR Sensor

Figure 2: Key specifications of the YDLIDAR G6, including ranging frequency, radius, height, and scanning frequency.
1.2 Product Features
- 360-degree omni-directional scanning ranging capability.
- Features small ranging error, excellent ranging stability, and high accuracy.
- Wide ranging range, extending up to 25 meters.
- Strong resistance to ambient light interference, ensuring reliable performance in various conditions.
- Equipped with an industrial-grade brushless motor drive for stable and durable performance.
- Laser power adheres to Class I laser safety standards, ensuring safe operation.
- Adaptive scanning frequency of 5-12Hz for all-directional scanning (customization supported).
- Incorporates optical and magnetic fusion technology for wireless communication and power supply.
- High-speed ranging with a frequency of up to 18000Hz.
1.3 Application Scenarios
The YDLIDAR G6 is versatile and suitable for a variety of applications, including:
- Robot navigation and obstacle avoidance.
- Educational and research purposes in robotics, particularly with ROS (Robot Operating System).
- Regional security monitoring.
- Environmental scanning and 3D reconstruction.
- Navigation and obstacle avoidance for home service robots and sweeping robots.

Figure 3: Visual representation of YDLIDAR G6 application fields.
2. Setup & Installation
Proper installation is crucial for the optimal performance of your YDLIDAR G6 sensor. Ensure the mounting surface is stable and free from vibrations.
2.1 Mechanical Dimensions
Refer to the diagram below for the mechanical dimensions of the YDLIDAR G6 sensor. These dimensions are essential for designing custom enclosures or mounting brackets.

Figure 4: Mechanical dimensions of the YDLIDAR G6 sensor.
2.2 Installation Dimensions
The following diagram provides details on the installation points and dimensions, including screw hole patterns, for secure mounting.

Figure 5: Installation dimensions and screw hole pattern for the YDLIDAR G6 sensor.
2.3 Connection
Connect the sensor to your system using the provided cable. Ensure the connection is secure and follows the pinout specifications (if available in a separate datasheet, which is not provided here). The sensor uses optical and magnetic fusion technology for wireless communication and power supply internally, but still requires a physical connection to the host system for data and primary power.
3. Operating Instructions
The YDLIDAR G6 operates by continuously rotating its mechanical structure and emitting laser pulses to measure distances. The collected data forms a point cloud representing the surrounding environment.
3.1 Power On/Off
- Power On: Once properly connected to a power source and host system, the sensor will typically initiate its scanning sequence automatically.
- Power Off: Disconnect the power supply from the sensor.
3.2 Data Acquisition
The YDLIDAR G6 outputs 360-degree scanning data as environmental point cloud data. This data can be processed by your host system (e.g., a robot controller or computer) using appropriate software development kits (SDKs) or libraries (e.g., ROS) to perform tasks like mapping, localization, and obstacle detection. The scanning frequency is adaptive, ranging from 5-12Hz, and the ranging frequency is up to 18000Hz.
3.3 Environmental Considerations
While the sensor has strong resistance to ambient light interference, extreme lighting conditions or highly reflective/absorbent surfaces may affect performance. Ensure the sensor's optical window is clear and unobstructed during operation.
4. Maintenance
To ensure the longevity and optimal performance of your YDLIDAR G6 sensor, follow these maintenance guidelines:
- Cleaning: Regularly clean the optical window of the sensor with a soft, lint-free cloth. Avoid using abrasive materials or harsh chemicals that could scratch the lens.
- Handling: Handle the sensor with care. Avoid dropping it or subjecting it to strong impacts, which could damage the internal mechanical and optical components.
- Storage: When not in use, store the sensor in a clean, dry environment, away from direct sunlight and extreme temperatures.
- Cable Inspection: Periodically inspect the connection cable for any signs of wear, fraying, or damage. Replace damaged cables immediately to prevent electrical issues.
5. Troubleshooting
This section provides solutions to common issues you might encounter with your YDLIDAR G6 sensor.
5.1 No Data Output
- Check Power: Ensure the sensor is properly powered on and receiving adequate voltage.
- Check Connections: Verify that all cables are securely connected to both the sensor and the host system.
- Software/Driver Issues: Confirm that the correct drivers and software (e.g., SDK, ROS node) are installed and configured properly on your host system.
- Sensor Obstruction: Ensure there are no physical obstructions blocking the laser emission or reception.
5.2 Inaccurate Ranging Data
- Clean Optical Window: Dust or smudges on the optical window can affect accuracy. Clean it gently as described in the Maintenance section.
- Environmental Interference: While resistant, extreme ambient light or highly reflective/absorbent surfaces can still cause minor inaccuracies. Try operating in a more controlled environment if possible.
- Firmware Update: Check the manufacturer's website for any available firmware updates that might improve performance or address known issues.
5.3 Sensor Not Rotating
- Power Supply: Insufficient power can prevent the motor from spinning.
- Physical Obstruction: Check for any foreign objects preventing the rotating part from moving freely.
- Motor Damage: If the above steps do not resolve the issue, the internal motor may be damaged, requiring professional service.
6. Specifications
Detailed technical parameters for the YDLIDAR G6 sensor are provided below.

Figure 6: Technical parameters of the YDLIDAR G6 sensor.
| Item | Minimum value | Typical value | Maximum value | Unit | Note |
|---|---|---|---|---|---|
| Frequency range | 10000 | 18000 | 18000 | Hz | Ranging 18000 times per second |
| Scanning frequency | 5 | 7 | 12 | Hz | Adjustable speed |
| Distance measuring range | 0.1 | 25 | m | Frequency range 10KHz | |
| 0.26 | 25 | m | Frequency range 16KHz | ||
| 0.28 | 25 | m | Frequency range 18KHz | ||
| Scanning Angle | 0-360 | Deg. | |||
| Absolute error | 2 | cm | Ranging ≤0.5m | ||
| 1.0% | Ranging > 0.5m, ≤8m | ||||
| 1.5% | Ranging > 8m, ≤16m | ||||
| 2.0% | Ranging > 16m, ≤25m | ||||
| Light intensity range | 0 | 1023 | Laser intensity | ||
| Laser Angle | 0.25 | 1 | 1.75 | Deg. | Laser pitch Angle |
| Angular resolution | 0.12 | 0.14 | 0.16 | Deg. | Scanning frequency is 7Hz |
6.1 Additional Product Properties
- High-concerned chemical: None
- Communication method: Other
- Origin: Mainland China
- Certification: CE, FCC, RoHS, UL, KC
7. User Tips
While specific user reviews or Q&A data were not provided, here are some general tips for optimizing your experience with the YDLIDAR G6 sensor:
- Software Integration: For robotics applications, leverage existing open-source libraries and frameworks like ROS (Robot Operating System) which often have pre-built drivers or community support for YDLIDAR sensors.
- Power Supply Stability: Ensure a stable and clean power supply to the sensor to prevent unexpected behavior or data inconsistencies.
- Mounting Precision: Mount the sensor as level and stable as possible to avoid distortions in the point cloud data, which can impact navigation and mapping accuracy.
- Environmental Awareness: Be mindful of highly reflective surfaces (e.g., mirrors, polished metals) or transparent objects (e.g., glass) in the sensor's field of view, as these can sometimes cause erroneous readings.
8. Frequently Asked Questions (FAQ)
Specific FAQ content was not provided. For common questions, please refer to the manufacturer's official support channels or community forums.
- Q: What is the maximum range of the YDLIDAR G6?
A: The YDLIDAR G6 has a maximum ranging radius of 25 meters. - Q: Is the laser safe for human eyes?
A: Yes, the laser power meets Class I laser safety standards. - Q: Can the scanning frequency be adjusted?
A: Yes, the scanning frequency is adaptive from 5-12Hz and supports customization.
9. Warranty & Support
The YDLIDAR G6 sensor is covered by the manufacturer's standard warranty. Please refer to the official YDLIDAR website or your point of purchase for detailed warranty terms and conditions.
For technical support, documentation, or further assistance, please contact YDLIDAR customer service or visit their official support portal. Ensure you have your product model (G6) and any relevant purchase information ready when seeking support.





