Hi-Link HLK-LD2420 24GHz Human Presence Radar Sensor - GPIO/UART Interface
The Hi-Link HLK-LD2420 is a 24GHz millimeter-wave radar sensor module designed for accurate human presence detection, supporting motion, micro-motion, and stationary body sensing up to 8 meters. It features GPIO and UART interfaces for easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi, operating on a 3.0V to 3.6V supply.
Features
- 24GHz FMCW radar technology for precise human presence and motion detection.
- Configurable detection range up to 8 meters with adjustable sensitivity and refresh intervals.
- Low-power operation with an average current consumption of approximately 50 mA.
- Dual interface support: GPIO for direct control and UART for serial communication and configuration.
- Pre-loaded with intelligent occupancy sensing firmware for plug-and-play functionality.
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The HLK-LD2420 utilizes advanced 24GHz millimeter-wave radar technology combined with a proprietary S3 series chipset and intelligent signal processing algorithms. This enables it to distinguish between moving, micro-moving (e.g., breathing), and stationary human bodies, providing reliable occupancy data for automation systems. Its frequency-modulated continuous wave (FMCW) operation ensures stable performance unaffected by ambient light or temperature variations.
The module is designed for indoor intelligent scenarios, offering real-time detection updates via its configurable parameters. Its compact form factor and low-voltage operation make it suitable for integration into battery-powered or mains-powered smart devices, security systems, and energy management platforms requiring accurate human presence sensing.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 10 × 7 × 2 cm |
