HLK-LD2410B Test Kit User Manual

1. Bubuka produk

The HLK-LD2410B is a high-sensitivity 24GHz human presence status sensing module developed by Hilink Electronics. It operates using FMCW (Frequency-Modulated Continuous Wave) technology to detect human targets within a defined space.

This module combines advanced radar signal processing with precise human body sensing algorithms to achieve high-sensitivity detection of human presence, capable of identifying both moving and stationary individuals. It can also calculate auxiliary information such as the target's distance.

Primarily designed for indoor applications, the LD2410B senses the presence of moving or micro-moving human bodies and outputs real-time detection results. It boasts a maximum sensing distance of 5 meters and a distance resolution of 0.75 meters. A visual configuration tool is provided to easily adjust parameters such as sensing distance range, sensitivity in different intervals, and unmanned delay time, allowing for adaptation to various specific application needs.

The module supports both GPIO and UART output, offering plug-and-play functionality for flexible integration into diverse smart scenarios and terminal products.

2. Fitur produk jeung Mangpaat

• Nyolok sareng Puter: Easy assembly and immediate use.
• Extended Sensing Range: Detects human presence up to 5 meters.
• Sudut deteksi lega: Covers up to ±60 degrees.
• Precise Interval Identification: Supports division of sensing range and interference shielding.
• Intelligent Parameter Adjustment: Multi-level adjustments via Bluetooth-compatible or serial port for scene changes.
• Visual Debugging Tools: Simplifies configuration and testing.
• Desain kompak: Minimum size is only 7mm x 35mm.
• Pamasangan serbaguna: Supports ceiling and wall mounting.
• Patuh pangaturan: Operates in the 24GHz ISM band, compliant with FCC and CE spectrum regulations.
• Éféktif ongkos: Offers high performance at an optimal price point.

The LD2410B module utilizes 24GHz millimeter wave radar sensor technology, offering significant advantages dina aplikasi sensing awak manusa:

• Comprehensive Detection: Sensitive to moving, static, fretting, and sitting human bodies, surpassing traditional solutions.
• Adaptasi Lingkungan: Unaffected by temperature, brightness, humidity, or light fluctuations.
• Operasi anu disumputkeun: Good shell penetration allows for hidden installation, enhancing product aesthetics without requiring surface openings.
• Konfigurasi fléksibel: Farthest sensing distance and sensitivity for each distance gate can be customized for personalized applications.
• Konektipitas Bluetooth: Enables direct debugging of radar parameters via an APP.

3. Skenario Aplikasi

The LD2410B human body sensing module can detect and identify human presence in various states (motion, fretting, standing, sitting, lying down). Its multi-level parameter adjustment makes it suitable for a wide range of AIoT scenarios:

• Human Body Induction Light Control

  Automatically controls lighting based on human presence, ideal for public spaces, sensor lights, and bulb lights.

• Human Body Induction Wake-up for Advertising Screens and Equipment

  Automatically activates devices when people approach and enters sleep mode when no one is present, saving power and ensuring efficient information delivery.

• Life Safety Protection

  Provides protection for UV lamp operation by preventing activation when people are nearby. Also used for automatic detection and alarm in dangerous areas, such as preventing unauthorized entry into high-risk spaces like coal mine blasting zones.

• Parabot Imah Smart

  Enables automatic shutdown of TVs, air conditioners, and other electrical appliances when a room is unoccupied for an extended period, promoting energy saving and safety.

• Kaamanan calakan

  Detects and identifies intruders or individuals lingering within specified ranges for enhanced security.

4. Spésifikasi

5. Setup jeung Connection

5.1 Sirkuit Aplikasi has

The LD2410B module can output the detected target state directly via an IO pin (high for presence, low for absence). Alternatively, it can transmit detection results and auxiliary data (such as target distance) through its serial port, following a specified protocol. Users can choose the output method that best suits their application.

Syarat Suplai Daya:

• The module requires a 5V power supply.
• The input power supply capacity must be greater than 200mA.

IO and Serial Port Details:

• The module's IO output level is 3.3V.
• The default serial port baud rate is 256000.
• Serial port configuration: 1 stop bit, no parity bit.

6. Parentah Operasi

6.1 Parameter Konfigurasi

Users can modify the module's configuration parameters via the LD2410B's serial port to meet different application requirements. These configurations are saved even after power-off. Key configurable parameters include:

• Farthest Detection Distance

  This setting defines the maximum distance at which human targets will be detected and reported. It is configured in units of "distance gates," where each gate represents 0.75 meters. The setting range is typically 1 to 8. For example, setting the farthest gate to 2 means only human bodies within 1.5 meters will be effectively detected.

• Sensitipitas

  Detection occurs only when the target's energy value (ranging from 0 to 100) exceeds the set sensitivity value; otherwise, the target is ignored. Sensitivity can be set from 0 to 100. Each range gate's sensitivity can be independently adjusted, allowing for precise detection in different distance ranges, accurate local detection, or filtering of interference sources in specific areas. Setting a distance gate's sensitivity to 100 effectively disables detection for that range.

• No-one Duration (Unmanned Delay Time)

  When the radar transitions from detecting a person to no person, it will continue to report "person" for a specified duration. If no person is detected within the radar's test range during this period, the radar will then report "no person." If a person is detected again during this delay, the timer resets. This parameter, measured in seconds, acts as a delay after a person leaves before the module reports an unoccupied state.

6.2 Visual Configuration Tool

A PC-based configuration tool is provided to facilitate quick and efficient testing and configuration of the module. This software allows users to connect to the module's serial port, read and configure parameters, receive detection results, and view real-time visual data, significantly enhancing user experience.

How to Use the Host Computer Tool:

1. Ensure the module's serial port is correctly connected using a USB to serial port tool.
2. In the host computer tool, select the corresponding serial port number, set the baud rate to 256000, choose "engineering mode," and click "Connect Device."
3. Once connected, click the "Start" button. The graphical interface on the right will display real-time test results and data.
4. To read or set module parameters, ensure the "Start" button is not clicked, or click "Stop" if it is currently running. Configuration can only be performed when the module is not actively streaming data.

7. Pangropéa

• beberesih: Jaga modul tetep bersih sareng bébas tina lebu sareng kokotor. Anggo lawon anu lemes sareng garing pikeun ngabersihkeun. Hindarkeun nganggo cairan atanapi pembersih anu abrasif.
• Kaayaan Lingkungan: Operate and store the module within its specified operating temperature and humidity ranges to ensure optimal performance and longevity.
• Penanganan: Handle the module with care to prevent physical damage to components or connectors. Avoid static discharge.
• Pembaruan firmware: Pariksa produsén urang website periodically for any available firmware updates that may improve performance or add new features.

8. Cara ngungkulan

• No Detection / Inconsistent Detection

  Pariksa Power Supply: Ensure the module is receiving a stable 5V power supply with a capacity greater than 200mA.

  Pariksa sambungan: Confirm all serial port and IO connections are secure and correctly wired (GND, RX, TX, VCC).

  Saluyukeun sensitipitas: Use the visual configuration tool to adjust the sensitivity settings for each distance gate. Lower sensitivity values (closer to 0) increase detection range and responsiveness, while higher values (closer to 100) decrease it, potentially filtering out minor movements or distant objects.

  Check Farthest Detection Distance: Ensure the configured farthest detection distance covers your desired area. If set too low, it might ignore targets beyond that range.

  Gangguan Lingkungan: While robust, extreme environmental factors or large moving objects outside the target area might cause interference. Try to minimize such factors or adjust sensitivity to filter them out.

• Communication Issues with PC Tool

  Serial Port Selection: Double-check that the correct COM port is selected in the PC tool.

  Tingkat baud: Ensure the baud rate is set to 256000.

  Mode rékayasa: Confirm "engineering mode" is selected.

  Module State: Remember that parameters cannot be read or configured if the "Start" button is active. Click "Stop" first.

  USB to Serial Converter: Ensure your USB to serial converter is functioning correctly and its drivers are installed.

• Modul Teu Ngabales

  Siklus kakuatan: Disconnect and reconnect the power supply to the module.

  Check for Shorts: Inspect the module and connections for any accidental short circuits.

9. Tips pamaké

• For optimal performance, consider the placement of the module. Ceiling or wall mounting can affect the detection pattern.
• Experiment with sensitivity settings in the visual configuration tool to fine-tune detection for your specific environment and application.
• When integrating with other systems, ensure proper voltage level shifting if your microcontroller operates at a different logic level than the module's 3.3V IO.
• Regularly test the module's detection capabilities after making significant changes to its environment or configuration.

10. Garansi jeung Rojongan

For technical support, documentation, or inquiries regarding warranty, please contact your vendor or refer to the official Hilink Electronics websitus. Simpen resi pameseran anjeun pikeun klaim jaminan.

11. Statement of Compliance

Bantahan

⚠ PERHATOSAN: Produk ieu tiasa ngalaan anjeun kana bahan kimia kalebet timbal, anu dipikanyaho ku Nagara Bagian California nyababkeun kanker sareng cacad lahir atanapi gangguan réproduktif anu sanés. Kanggo inpormasi lengkep, buka www.P65Warnings.ca.gov.