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LD015-5G 5.8G Radar Module
Retail Price:$2.00
Wholesale Price:$1.55


    HLK-LD015-5G is a miniaturized 5.8G radar sensor launched by Hi-Link. The module size is 46*8mm. The module fully integrates 5.8G microwave circuit, intermediate frequency amplifier circuit and signal processor, with high integration and good production consistency. The peripheral is matched with a miniaturized planar antenna, which greatly reduces the overall size while ensuring the performance of the sensor. The sensor can be used to detect the presence of human body or various scenes of moving target sensing, including smart home, Internet of Things, and smart lighting. Especially in the field of lighting, it has been widely used in standard lighting products such as induction bulbs and tubes.

Input and Output Interface

    The module reserves 5 pin holes with a PIN distance of 1.2mm. The three PINs VCC, GND and OUT are used by default. If parameters such as distance and delay time need to be modified, they can be flexibly configured through the serial port RX and TX. When there is no host computer, RX and TX can also be used as I/O ports to adjust parameters. The following table shows the definition of each PIN

Pin Name Function Remarks
Module Power Supply
The default LDO is not attached, VCC is 5V, and the version with LDO attached, VCC is 7~12V, the default power consumption of the module is 35mA, and the recommended power drive capability is over 50mA
GND Ground PIN  
OUT Output Signal The default output 5V high and low level, can be modified to PWM output as needed
TX Serial port/burn tDio/IO Can be used for software upgrade or performance parameter adjustment
RX Serial port/burn tClk/IO Can be used for software upgrade or performance parameter adjustment
The module length and width are 46mm*8mm. There are no pins and the overall thickness is 2.5mm by default. If you need pins, the default pin height is 12mm.

Electrical parameters
Parameters Minimum
Unit Remarks
Transmit frequency 5725   5875 MHz  
Transmit power   0.5 1 mW  
Input voltage 4.5 5 5.5 V LDO is not attached by default
Output high level   5   V  
Output low level   0   V  
Working current   38 50 mA  
Hanging height   3 5 M Adjustable according to specific needs
Sensing radius   4 6 M Related to sensitivity and hanging height
Delay time   30   S Adjustable according to specific needs
Photosensitive threshold   10   Lux Adjustable according to specific needs
Operating temperature -30   85 °C  

* When installing, avoid metal shells or parts on the front of the antenna to avoid shielding the signal. Plastic or glass is allowed, but the obstruction should not be close to the front of the antenna;

* Try to avoid directing the radar antenna direction to large metal equipment or pipelines, etc.;

* When installing multiple radar modules, try to ensure that the antennas of each radar module are parallel to each other, avoid direct illumination between the antennas, and keep a distance of more than 1m between the modules;

* The radar sensor should be avoided facing the AC drive power supply, and try to stay away from the rectifier bridge of the drive power supply to avoid power frequency interference with radar signals;

* The power supply driving capability of the radar module needs to be more than 50mA, otherwise it will cause the sensor to work abnormally.



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