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