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   We are Shenzhen Hi-Link Electronic co.,ltd, manufacturer of radar module for ten years in China. 
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HLK-LD1115H-24G




1. Product Overviews



HLK-LD1115H-24G is a high sensitivity 24GHz millimeter wave human presence detection radar module. Different from the traditional radar, which judges the existence of the human body by detecting the large-scale movements of the human body or the small-scale body movements, the main feature of this module is that on the basis of the function of the traditional human-body induction radar, it also has the ability to detect and accumulate small-scale movements such as human respiration to determine the function of the existence of the human body. Therefore, compared with traditional Doppler radar, it has presence detection within a certain range, with higher accuracy, and is not easy to miss reports.



Modules can penetrate non-metallic enclosures without openings. Common materials include plastic, glass, wood, ceramic, and more. Especially for human presence detection applications, wall-mounted plastic 86-box panels and ceiling-mounted ceiling buckle enclosures are recommended.

2. Module appearance and interface

Pin   interface  definition: (2.54mm  pitch  pin header  connector  is recommended  for  the  interface)


                                           Pin
                                                      Name
                                          Remark
                     
                                      1
                                          VCC
                                          Vlotage 5V power supply
                     
                                      2
                                          GND
                                          Ground
                     
                                      3
                                          VO
                                                Induction output pin (optional)
                     
                                      4
                                          URX
                                          TTL serial receive
                     
                                      5
                                          UTX
                                          TTL serial transmission
                     
    

                                        
3. Module performance

4. Debug wiring
HLK-LD1115H-2.4G uses the serial port to output the test results in string format, so when users test the module, they can first perform a quick test evaluation on the serial port assistant.

The module and serial board can be connected according to the figure on the left:
Module 1  pin  is  connected  to  the  serial board  5V
                                                               Module 2  pin  is  connected  to  the  serial  board  GND
                                          Module 4  pin  is  connected  to  the  serial  board  TX
                                             Module 5  pin  is  connected  to  the  serial  board  RX
(There is a silk screen on the pins of the radar module, which can be directly connected)
5. Debug configuration
You can debug and test on the computer through the serial port assistant HLK-LD1115H-24G. Use any serial debugging tool. The baud rate is 115200, 8 data bits, 1 stop bit, check bit and flow control are None, select ASCII for receive settings, and select ASCII for send settings.




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