How to use HLK-LD2410B Bluetooth User Guide?
28 Jan 2025
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The HLK-LD2410B radar sensor module incorporates Bluetooth functionality, enabling users to efficiently configure and monitor the sensor via a mobile application. Presented below is a comprehensive guide outlining the procedures for installing, connecting, and adjusting radar parameters utilizing the Bluetooth feature.
Install Software
The mobile app for HLK-LD2410B is available on both Android and iOS platforms. You can download and install the app from the following sources:
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For Android users: Download the app from this link: https://www.pgyer.com/Lq8p Alternatively, you can search for "HLKRadarTools" in your Android app store to install it.
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For iOS users: You can search for "HLKRadarTools" in the Apple App Store to install the app.
Once installed, open the app and you can begin connecting to the HLK-LD2410B radar sensor and configure it.
App Usage Instructions
After installing the app, follow these steps to connect the HLK-LD2410B radar sensor via Bluetooth and modify its settings:
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Open the App
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Launch the app, and it will automatically search for nearby radar devices.
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Search for Bluetooth Devices
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The app will display available devices. Each device is identified by the broadcast name "HLK-LD2410B_xxxx", where xxxx represents the last four digits of the radar sensor's MAC address.
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Connect to the Radar
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Once you find the HLK-LD2410B device, tap on it to connect. After a successful connection, the radar's information and parameters will be displayed on the app interface.
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View Parameters
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You can view the current parameters of the radar sensor, such as its detection range, sensitivity settings, and other configuration details.
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Modify Radar Parameters
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To adjust the radar settings, please select the "Modify Radar Parameters" option. The procedure for altering parameters within the Bluetooth application parallels that of utilizing the PC host configuration tool.
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You can adjust settings like detection range, sensitivity, and unmanned delay time.
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Save Parameters
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After modifying the parameters, make sure to save them to apply to the radar sensor. The app allows real-time adjustments, and any changes will be stored for future use.
Turn Bluetooth On Again
The Bluetooth functionality of LD2410B is enabled by default; however, it can be activated or deactivated through the serial port protocol. For further details, please refer to the LD2410B Serial Communication Protocol. If Bluetooth has been turned off or serial communication cannot be used, Bluetooth can be turned on again by following these steps:
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After the module is powered off, power it back on more than 5 times, with each power cycle interval of 2-3 seconds, to re-enable Bluetooth.
LD2410B V2.44 (24073110) New Features Introduction
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Document Background
This document provides an overview of the new functionalities introduced through the recent iterative update of the firmware for the LD2410B module. Users are strongly encouraged to update both the corresponding firmware and application to fully leverage these enhancements.
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Environment Preparation
The new function is automatic detection of background noise.
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Firmware version: LD2410B V2.44 (24073110)
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App version: Android version: V1.5.12; iOS version: V1.5.4
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App download link: https://www.hlktech.com/Mobile/App/12.html
Before using this function, please ensure that the firmware and app versions on the current module are the same or higher than the firmware version in the module.
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Function Usage
Function introduction:
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Upon activation of this function, the module will transition into background noise detection mode after a duration of ten seconds. During this period, the module will record background noise data as reported by each distance gate within the designated timeframe. Subsequently, it will automatically generate parameters to configure the module, establishing both motion and stationary thresholds.
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During the detection process, it is advised that individuals remain outside the detection range of the module to prevent any human-induced energy values from interfering with the procedure.
Function usage explanation:
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In the absence of external interference, the module is capable of transitioning to unmanned mode; however, the triggering distance may be shorter than anticipated, or triggering may prove challenging. This phenomenon is likely attributable to the parameters employed by the current module surpassing the surrounding background noise, or to disturbances in the environment that hinder the module's ability to switch to unmanned mode, potentially resulting in a delay in this transition.
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Operation Instructions:
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The following serves as a demonstration utilizing the Android application, with the usage for iOS being identical. Upon updating the application to the latest version and establishing a connection with the corresponding module, an "Auto" floating button will be incorporated into the detection interface. The default location of this button is situated at the lower right corner; however, users have the option to relocate the button to different positions by engaging in a long-press action.
Notes
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Bluetooth Range: The operational range for utilizing the Bluetooth connection is generally constrained to 4 meters. It is essential to ensure that your mobile device remains within this distance to maintain a stable connection with the radar sensor.
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Connection Stability: For optimal performance, keep the app open and the Bluetooth connection active. Avoid excessive distance between the app and the sensor.
The Bluetooth application offers a user-friendly and efficient means for configuring and managing the HLK-LD2410B radar sensor module. Through the utilization of this application, users can effortlessly modify sensor parameters without the requirement for additional hardware or direct serial connections. This significantly streamlines the process of fine-tuning radar settings, enhancing both convenience and accessibility for users.
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