Hi-Link HLK-LD2420 24GHz Human Motion Radar Sensor Module
The Hi-Link HLK-LD2420 is a 24GHz millimeter-wave radar sensor module designed for detecting moving, micro-motion, and stationary human presence up to 8 meters. It operates on a 3.3V supply and provides configurable sensing via GPIO and UART interfaces, making it suitable for integration with Arduino, ESP32, Raspberry Pi, and other microcontroller-based smart systems.
Features
- 24GHz ISM band radar with FCC, CE, and spectrum regulatory approvals for reliable operation.
- Advanced algorithm detects moving, micro-movement, and stationary human bodies with configurable sensitivity and zone ranges.
- Compact 20mm x 20mm module footprint with low 50mA average operating current for space-constrained designs.
- Dual-output interfaces: GPIO for direct triggering and UART for detailed configuration and data logging.
- Plug-and-play operation with default settings, easily customizable for specific detection scenarios.
Out of stock
The HLK-LD2420 utilizes 24GHz Frequency-Modulated Continuous Wave (FMCW) radar technology with a single transmitter and receiver antenna. Its core is the S3 series chipset, which employs proprietary signal processing algorithms to distinguish human motion from environmental noise, enabling precise detection of presence, movement, and even subtle micro-motions like breathing. This makes it highly effective for occupancy sensing in indoor environments.
The module outputs detection results in real-time and can be configured via UART commands to adjust parameters such as detection distance zones (up to 8m max), sensitivity thresholds, and refresh rates. Its 3.0V to 3.6V operating range ensures compatibility with common 3.3V logic systems, while the compact form factor allows for discreet integration into lighting controls, security systems, and smart home appliances.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 2 × 2 cm |
