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The HLK-LD2410 series by Hi-Link is a set of compact, low-power 24GHz radar modules that use Frequency-Modulated Continuous Wave (FMCW) technology to detect human presence and movement, including fully stationary individuals — a major leap beyond traditional motion sensors.
The LD2410, LD2410B, and LD2410C variants offer different interfaces and physical layouts but share the same core sensing capabilities. These modules support presence detection up to 6 meters, with configurable parameters like sensing distance, sensitivity, and detection zones through UART commands or a PC configuration tool.
With high reliability in low-light, smoky, glass-obstructed, or high-temperature environments, the LD2410 series is widely used in smart homes, offices, public spaces, and IoT automation systems for lighting, security, HVAC, and occupancy monitoring.
| Model | Interface | Extras | Ideal Use |
|---|---|---|---|
| LD2410 | UART | Basic model | Embedded systems, IoT |
| LD2410B | UART + GPIO | More control pins | Custom automation setups |
| LD2410C | UART + USB | Built-in USB for easy config | PC-based testing/config |