The HLK‑LD6004 is a high‑precision 60 GHz FMCW millimeter‑wave radar module developed by Hi‑Link, built on the advanced ADT6101P chipset. It integrates a 57–64 GHz RF transceiver, a 2T2R AIP antenna, 1 MB Flash, a dedicated radar signal‑processing unit, and an ARM Cortex‑M3 core. Using FMCW signal processing and advanced radar algorithms, the LD6004 supports multi‑target 3D human presence detection, capable of identifying movement, micro‑motion, and stationary human bodies while outputting real-time x/y/z coordinates for up to 3 targets. Its ±60° wide beam, UART/GPIO output, and compact 25 × 31.5 mm form factor make it ideal for smart home, lighting, security, and professional indoor sensing applications.
Features
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FMCW radar sensing: High‑sensitivity detection of human presence and distance
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57–64 GHz operating band: High-frequency performance with 2T2R AIP antenna
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Wide detection angle: Horizontal ±60° and vertical ±60° field of view
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Multi-target tracking: Supports up to 3 moving targets with 3D coordinate (x/y/z) output
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Comprehensive detection: Identifies movement, micro‑motion, and static human bodies
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Long sensing range: Maximum distance of up to 6 m (wall‑mounted)
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High precision: 95% recognition accuracy in standard indoor environments
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Flexible interface: UART + GPIO output with fully configurable parameters
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Compact form factor: 25 × 31.5 mm, supports pin‑header or SMT mounting
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High stability: Immune to temperature, humidity, noise, airflow, dust, and light
Application Scenarios
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Smart Home Appliances: Automatically adjusts device modes based on detected human presence.
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Human‑Sensing Lighting: Efficiently controls lighting in public areas, offices, and smart buildings.
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Smart Home & Hotel Automation: Real‑time monitoring of occupancy for improved security and energy control.
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Indoor Personnel Monitoring: Accurate detection of motion and micro-motion for safety systems.
Technical Specifications
① Functional Parameters
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Max detection targets | — | — | 3 | Targets |
| Distance accuracy | — | 0.4 | — | m |
| Wall‑mounted sensing distance | 0 | — | 6 | m |
| Recognition accuracy rate | — | 95 | — | % |
② Electrical Characteristics
| Operational Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating voltage (VCC) | 3.1 | 3.3 | 3.5 | V |
| Operating current (ICC) | — | 135 | 600 | mA |
| Operating temperature (TOP) | –20 | — | 85 | ℃ |
| Storage temperature (TST) | –40 | — | 85 | ℃ |
③ RF Characteristics
| Operational Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Service frequency | 58 | — | 64 | GHz |
| EIRP | — | 12 | — | dBm |
| Antenna gain | — | 4 | — | dBi |
| Horizontal beam (–3 dB) | –60 | — | +60 | ° |
| Vertical beam (–3 dB) | –60 | — | +60 | ° |
Packing List
HLK‑LD6004 Module
1 × HLK‑LD6004 Radar Module
Test Kit w/o Module
1 × HLK-Test-Kit (Test Kit w/o Module)