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- SKU: 07931
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Hi-Link HLK-LD2420 24GHz Human Motion Radar Sensor
HLK-LD2402 is a static human life presence sensor from Hailingke, which includes extremely simplified 24GHz sensor hardware and intelligent algorithm firmware for human micro motion sensing.
The hardware is equipped with AIoT millimeter wave sensors, high-performance 24GHz one transmitter one receiver antennas, and peripheral circuits; The human presence sensing algorithm adopts millimeter wave radar distance measurement technology and advanced proprietary radar signal processing technology of radar chips to achieve precise perception of motion, micro motion, and human presence. The firmware of the human presence sensing intelligent algorithm is mainly used in indoor scenes to sense whether there is motion, micro movement, or the presence of a human body in the area, and to refresh the detection results in real time.
The maximum sensing distance of HLK-LD2402 for a moving human body is 10m, and the sensing distance range, triggering and holding thresholds for different intervals, and unmanned reporting time can be easily configured. HLK-LD2402 supports GPIO and UART interfaces, plug and play, and can be flexibly applied to different intelligent scenarios and terminal products. Simultaneously supporting automatic generation of detection thresholds, reducing manual debugging, improving detection accuracy, simplifying installation processes, and facilitating large-scale deployment.
Features
- 24GHz FMCW millimeter-wave radar technology
- Detects moving and micro-moving human targets
- Maximum motion detection range up to 8 meters
- Near-field sensing from 0.2 meters with no blind zone
- Wide detection angle of ±60°
- Configurable detection zones and sensitivity levels
- Real-time presence and motion reporting
- GPIO output for direct presence indication
- UART interface for configuration and data output
- Adjustable trigger and hold times
- Zone masking to eliminate unwanted detection areas
- Plug-and-play operation with default firmware
- Compact 20mm × 20mm module size
- Supports wall-mounted and ceiling-mounted installations
- Visualization software available for parameter tuning and monitoring
- Strong anti-interference performance for smart automation applications
Specifications
- Operating Frequency: 24.0GHz – 24.25GHz
- Radar Type: FMCW (Frequency Modulated Continuous Wave)
- Detection Distance (Motion): Up to 8m
- Detection Distance (Micro-motion): Up to 6m (wall mount)
- Detection Angle: ±60°
- Supply Voltage: 3.0V – 3.6V DC (3.3V Typical)
- Average Current Consumption: ~50mA
- Interface: UART (3.3V TTL), GPIO
- Detection Zones: Configurable multi-zone detection
- Distance Resolution: Approximately ±0.35m
- Operating Temperature: -40°C to +85°C
- EIRP Output Power: 11dBm Max
- Sweep Bandwidth: 250MHz
- Module Dimensions: 20mm × 20mm
- Mounting Options: Ceiling Mount, Wall Mount
- Output Format: UART ASCII Data / Digital GPIO Signal
Package Includes
- 1 × Hi-Link HLK-LD2420 24GHz Human Motion Radar Sensor Module
