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-24.5GHzModulation method CWDetection distance > 4m static human presence detection, > 16m motion detectionRange hanging height 3m, static body detection coverage radius 2m, mobile detection radius> 5mPower supply 3.6-5VCurrent 70mAOutput serial level 3.3VDetection cycle adaptiveAntenna half power angle horizontal ±57°, vertical ±24° (see the figure below for the definition of antenna horizontal/vertical direction)Data format Serial port ASCII output/high and low levelStartup time about 15 seconds