Hailingke 10G X-band Radar Sensing Module LD1030 Low-power Micro-motion Sensing Switch Sensor--EngrWorld

HLK-LD1030 is a micro/motion sensing module designed based on an X-band radar chip, with a center frequency of 10.525GHz. The module is designed with a fixed-frequency, directional transmitting and receiving antenna (1T1R), integrating functions such as intermediate frequency demodulation, signal amplification, and digital processing. It has capabilities such as delay setting, adjustable sensing range, and light intensity detection, facilitating customers to independently adjust parameters. This product has advantages such as not penetrating walls, anti-interference, small size, good clutter and high-order harmonic suppression effects, high stability, and consistency.

The product is suitable for embedded concealed installation, not affected by temperature/humidity, oil fume, water mist, etc., and can be widely used in various lamps, such as floor lamps, cabinet lamps, night lights, etc.

2. Functional Features

 Based on Doppler radar principle

 The product is positioned for micro/motion sensing scenario applications

 Sensing distance: 2-6m (adjustable) for front sensing distance

 Equipped with light sensing detection capability (this function is not included by default)

3. Application Scenarios

 Smart lighting: home, office, hotel, campus, etc.

 Home appliances, electrical appliances, etc.

4.Notes on the Design of Matching Driver Power Supply

• Be sure to use a driver power supply that meets the standards for output voltage, current, ripple coefficient, etc. An unstable driver power supply with excessive electromagnetic radiation may cause phenomena such as false alarms, insensitivity, and cyclic self-starting of the radar module;

• The matching driver power supply should be within 3.3~12V, the driving current should not be less than 1mA, the power ripple amplitude should be controlled within 100mV, and the power frequency fluctuation amplitude should be small;

• When assembling the driver power supply and the radar module, avoid having the bottom or antenna surface of the radar module directly facing the driver power supply module, and keep it as far as possible from components in the driver power supply module with strong power frequency interference such as rectifier bridges and switching transformers to prevent interference with microwave signals;

• The input voltage range of the ADC pin must be controlled within 0~3V; otherwise, exceeding this range may damage the radar module.

5. Notes on Testing and Using the Radar Module

• In cases where there are walls or obstacles around that reflect microwaves, the sensing distance and angle will be enhanced; in relatively open surroundings, the sensing distance and angle will be attenuated;

• Since even small changes to the microwave antenna can alter detection, please protect the antenna. There should be no metal objects (such as solder wires) on its surface to avoid affecting the sensing distance;

• Handle with care, avoid violent vibrations, and keep the radar module flat and undistorted; photosensitive devices should be unobstructed and uncovered, especially around the photosensitive element D1 on the radar module, where opaque obstructions should be avoided;

• The radar module should have an independent usage space, with a free space interval of more than 2mm around it;

• After power-on, there is an initial noise analysis period of approximately 15 seconds, during which it is not in normal sensing operation;

• If the photosensitive device of the radar module is covered (such as by a housing), it is necessary to retest to determine the photosensitive threshold;

• During production line testing and aging operations, when a large number of radar modules are powered on and stacked together, self-excitation may occur. Ensure that there is a safe distance of more than 50cm between powered radar modules.

6. Notes on the Installation of Devices with Built-in Radar Modules

• Devices equipped with radar modules should be installed away from places with strong vibrations such as ventilation ducts, fire-fighting pipes, drainage pipes, mechanical vibrations, or large metal equipment, as these will affect radar reflected waves and detection performance;

• Live working is strictly prohibited to avoid operational errors, wrong connections, circuit burnout, or electric shock;

• Avoid installation in places exposed to sunlight and rain to prevent damage and affect service life;

• Devices must be installed away from electromagnetic fields to avoid false operations caused by electromagnetic interference; they should also be installed away from places with fixed rotating or swinging objects (such as electric fans, swaying leaves, clothes drying in the wind, etc.) to prevent false operations;

• When multiple devices with built-in radar modules are fixedly installed, the distance between each device should be ≥0.5m;

• It is recommended that the antenna surface of the radar microwave module be 3~5mm away from the product housing; otherwise, the sensing distance will be affected;• After a device is equipped with a built-in radar module, it is recommended to place it horizontally or vertically. Within the effective sensing range, try to avoid installing two or more devices with built-in radar modules facing each other.

• Avoid having other light-emitting objects (such as emergency lights, guide lights, and other interfering light sources) near devices with built-in radar modules (e.g., lamps), to prevent the failure of the built-in light sensing judgment of the device (lamp), which may cause the device (lamp) to not work properly (remain off, mistakenly judged as daytime).

• If a device (such as a lamp) using a built-in radar module keeps working (remains on) and cannot be turned on or off based on moving target detection, it may be that the radar module is subject to intermediate frequency interference, causing the module to always judge that there are moving targets active within the sensing range. In this case, the power should be turned off, and check whether the power supply status of the power board is normal and whether the spatial distance of the module has changed.

• If the above problems cannot be solved, first cut off the power, observe the situation around the installation location, and first eliminate the influence of surrounding environmental interference factors. If the problem persists after restarting the power supply, consider replacing the device's driver power board or radar module for further verification.

	类型	描述
	产品类型	雷达模块
	制造商	Shenzhen Hi-Link
	品牌	Hi-Link
	封装/规格	8×40×2.4mm，聚合物材质
	传感器模块类型	10.525GHz 磁敏数字雷达传感器（多普勒雷达 / 微运动感知）
	工作电压（Vin)	3.3~12.0V
	工作电流	16mA（Max，VCC=3.3~12.0V）
	接口类型	数字输出接口（3.3V 电平）
	工作温度	-20℃~+85℃

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