1. Introduction
The HLK-LD6001A is a 60G multi-target human motion trajectory sensing radar module designed for indoor personnel detection and tracking. Unlike traditional visual, infrared, or laser perception methods, this millimeter-wave radar is unaffected by lighting conditions, allowing for active, continuous monitoring of indoor environments. It incorporates personal privacy protection features, making it an ideal sensor for various home and commercial applications. Built with nationally produced, independently controllable chips, the module offers accurate tracking and positioning of multiple individuals indoors. It can detect people in static states, such as reading or sleeping, and effectively suppresses interference from common household items like curtains and green plants. This product boasts low cost, high reliability, and high performance.
Figure 1: HLK-LD6001A 60G frequency band radar module.
2. Product Overview
2.1 Key Features
- Operating Frequency: 60GHz
- Antenna Configuration: 4T4R (4 Transmit, 4 Receive) for high-precision detection.
- Target Tracking: Capable of detecting and tracking up to 10 individuals simultaneously.
- Motion Trajectory: Tracks target motion trajectories and provides real-time target positions.
- Detection Range: Adjustable from 0.5 to 8 meters.
- Static Detection: Detects individuals even in static states (e.g., sitting, sleeping).
- Interference Suppression: Designed to suppress interference from environmental factors like curtains and plants.
- Power Supply: 5V.
- Operating Temperature: -15°C to 70°C.
- Module Size: 60mm x 30mm.
2.2 Product Variants
The HLK-LD6001A is available as a standalone module or as a test kit for easier development and integration.
- HLK-LD6001A Module: The core radar sensing unit.
- HLK-LD6001A Test Kit: Includes the HLK-LD6001A module, a CH340 Serial port board, and SH2.0mm 4P to Dupont line (4PIN line with 30cm) for convenient connectivity.
Figure 2: Top and bottom view of the HLK-LD6001A radar module.
Figure 3: HLK-LD6001A test kit components.
Video 1: Production and testing process of the HLK-LD6001A radar sensor module.
3. Setup and Installation
3.1 Module Pinout
The HLK-LD6001A module features several pins for power, communication, and control. Refer to the diagram below for pin identification.
Figure 4: HLK-LD6001A Module Pinout.
Key pins include:
- 3V3: 3.3V Power Supply (for logic, not main power)
- GND: Ground
- RX: UART Receive Data
- TX: UART Transmit Data
- UART: UART interface for communication.
- TCK, TMS, NRS1: Other control/debug pins.
3.2 Power Connection
The module requires a 5V power supply. Ensure stable power delivery to the module for optimal performance. The test kit includes a CH340 Serial port board which can facilitate power and communication via USB.
3.3 Physical Installation
The HLK-LD6001A module is suitable for ceiling installation and can also be wall-mounted. For ceiling installation, consider the following:
- Optimal Height: An installation height of approximately 2.7 meters provides an effective ground projection radius of 3.5 meters.
- Detection Area: The module can detect within a range of 0.5 to 8 meters.
Figure 5: Ceiling Installation Detection Diagram.
4. Operating Instructions
The HLK-LD6001A module operates by emitting 60GHz millimeter waves and analyzing the reflected signals to detect and track human motion. It provides data on regional positions and motion trajectories of up to 10 targets.
4.1 Communication Interface
The primary communication interface for the module is UART. Connect the module's TX and RX pins to your microcontroller or computer's serial interface (e.g., via the CH340 board in the test kit) to send commands and receive data.
4.2 Detection Modes
The module is designed for continuous monitoring and can detect various states of human presence:
- Motion Detection: Identifies moving individuals within its detection zone.
- Static Presence Detection: Capable of detecting stationary individuals, such as someone reading or sleeping, which is a key advantage over PIR sensors.
- Multi-Target Tracking: Provides data for up to 10 distinct targets, including their positions and movement paths.
4.3 Environmental Considerations
The module is robust against common environmental interferences. However, ensure the detection area is clear of large, rapidly moving objects that are not human, as these could potentially cause false positives depending on configuration.
5. Maintenance
The HLK-LD6001A module is designed for low maintenance. To ensure its longevity and optimal performance:
- Keep Clean: Ensure the module's surface, especially the radar antenna area, is free from dust and debris. Use a soft, dry cloth for cleaning if necessary.
- Stable Power: Provide a stable 5V power supply within the specified voltage range.
- Environmental Conditions: Operate the module within its specified operating temperature range of -15°C to 70°C. Avoid exposure to extreme humidity or corrosive environments.
- Firm Connections: Periodically check all electrical connections to ensure they are secure.
6. Troubleshooting
If you encounter issues with your HLK-LD6001A module, consider the following common troubleshooting steps:
- No Detection:
- Verify the 5V power supply is correctly connected and stable.
- Check if the module is installed within the recommended detection range (0.5 to 8 meters) and height (e.g., 2.7m for ceiling mount).
- Ensure there are no obstructions directly in front of the module that could block the radar signal.
- Confirm the communication settings (baud rate, etc.) if using the UART interface.
- Erratic Readings / False Detections:
- Review the installation environment for potential sources of interference (e.g., large metallic objects, other high-frequency devices).
- Adjust the module's sensitivity settings if configurable via software (refer to the module's specific communication protocol documentation).
- Ensure the module is securely mounted to prevent vibrations.
- Communication Issues:
- Double-check the wiring of the UART TX/RX pins to your host device.
- Confirm the correct baud rate and other serial port settings are used.
- If using the test kit, ensure the CH340 driver is correctly installed on your computer.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Hi-Link (bibikoo) |
| Model Number | HLK-LD6001A |
| Operating Frequency Range | 60GHZ |
| Maximum Detection Distance | 8m |
| Detection Range | 0.5 to 8 meters |
| Detection Capability | Up to 10 people |
| Antenna Configuration | 4T4R (4 Transmit, 4 Receive) |
| Power Supply | 5V |
| Operating Temperature | -15°C to 70°C |
| Module Size | 60mm x 30mm |
| Communication Method | UART |
| State of Assembly | Ready-to-Go |
| Origin | Mainland China |
| Certification | CE |
| Camera Equipped | No |
| High-concerned chemical | None |
| Compatibility | Others (e.g., ESP32) |
8. User Tips
- UART Interface: The module primarily uses a UART interface for communication. Ensure your host device (e.g., microcontroller like ESP32) has compatible UART pins (V, G, TX, RX) and that the baud rate is correctly configured.
- Power Supply: The module operates on 5V. It is compatible with common 5V power sources, including those provided by development boards like ESP32.
- Mounting Flexibility: The module supports both ceiling and wall-mount installations, offering flexibility for various application scenarios. Consider the detection range and effective projection radius for optimal placement.
- Test Kit Convenience: If you are new to radar modules or prefer a quick setup, the HLK-LD6001A test kit (which includes a CH340 Serial port board and connecting cables) is highly recommended for ease of development and testing.
9. Warranty and Support
This product is manufactured by Shenzhen Hi-Link Electronic Co., Ltd. For technical support, inquiries, or warranty information, please contact the manufacturer directly using the details below:
- Company: Shenzhen Hi-Link Electronic Co., Ltd.
- Email: anna@hlktech.com
- Website: www.hlktech.net
- WhatsApp & WeChat: +86 136 3265 7057
- Skype: c-alicekuang
- Address: 17F, Building E, Xinghe WORLD, Minzhi Street, Long Hua District Shenzhen 518131, China
Figure 6: Shenzhen Hi-Link Electronic Co., Ltd. Contact Information.
