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Introduction
HLK-LD1115H is a high sensitivity 24GHz millimeter wave human presence detection radar module. 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 function of judging the existence of the human body by detecting and accumulating small movements such as human breathing. Therefore, the presence detection within a certain range has higher accuracy and is not easy to miss¡£
Specifications
Frequency? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?24G-24.5GHz
Modulation method? ? ? ? ? ? ? ? ? ? ? ? ? ? ?CW
Detection distance? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?> 4m static human presence detection, > 16m motion detection
Range? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? hanging height 3m, static body detection coverage radius 2m, mobile detection radius> 5m
Power supply? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?3.6-5V
Current? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 70mA
Output serial level? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?3.3V
Detection cycle? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? adaptive
Antenna half power angle? ? ? ? ? ? ? ? ? ?horizontal ¡¾57¡Æ, vertical ¡¾24¡Æ (see the figure below for the definition of antenna horizontal/vertical direction)
Data format? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Serial port ASCII output/high and low level
Startup time? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? about 15 seconds