Product Description; Main Features - Hi-Link HLK-LD2420 User Manual

1. Product Description

HLK-LD2420 is a high performance 24 GHz radar module with one transmitter and one receiver
antenna. Its human sensing algorithm uses millimeter wave radar distance measurement technology
and the advanced proprietary signal processing technology of S3 series chips to achieve accurate
sensing of moving, micro-movement and standing human bodies.
HLK-LD2420 is mainly used in indoor scenes to sense whether there is a moving or slightly
moving human body in the area and refresh the detection results in real time. It has a maximum
sensing distance of 8 m and can be easily configured to sense the distance range, sensitivity and
refresh time in different zones.It supports GPIO and UART interface, which is plug-and-play and can
be flexibly applied to different smart scenarios and end products.

1.1. Main Features

Single-chip smart millimeter wave sensor SoC and smart algorithm firmware on board
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Ultra-small module size: 20 mm × 20 mm
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Load default body sensor configuration, plug and play
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24 GHz ISM band with FCC, CE, and Commission-free spectrum regulatory approvals
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3.3 V power supply, supports 3.0 V ~ 3.6 V wide voltage range
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Average operating current 50 mA
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Detection target for motion, micro-motion human body
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Real-time reporting of detection results
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Provide visualization tools to support the configuration of the detection distance
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interval, sub-interval setting sensitivity and results reporting time
Support induction range division, completely shielding any interference outside the zone
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Proximity 0.2 m sensing, no blind detection zone
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Motion body sensing distance up to 8 m
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Large detection angle, covering a range of ±60°
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Support a variety of installation methods, such as hanging the top, hanging wall
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Independent configuration of trigger and hold states, strong anti-interference capability
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HLK-LD2420
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