The HLKLD6004 is a highprecision 60 GHz FMCW millimeterwave radar module developed by HiLink, built on the advanced ADT6101P chipset. It integrates a 5764 GHz RF transceiver, a 2T2R AIP antenna, 1 MB Flash, a dedicated radar signalprocessing unit, and an ARM CortexM3 core. Using FMCW signal processing and advanced radar algorithms, the LD6004 supports multitarget 3D human presence detection, capable of identifying movement, micromotion, 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 – Product Highlights

• FMCW Radar Sensing: Highsensitivity detection of human presence and distance using Frequency Modulated Continuous Wave technology.
• 60 GHz Operating Band: High-frequency performance (5764 GHz) with an integrated 2T2R AIP antenna.
• 3D Coordinate Output: Supports real-time tracking of up to 3 moving targets with precise x/y/z coordinate data.
• Wide Detection Angle: Exceptional coverage with a 60 horizontal and 60 vertical field of view.
• Comprehensive Detection: Capable of identifying active movement, micromotion (breathing/fretting), and completely static human bodies.
• Robust Stability: Completely immune to environmental interference such as temperature, humidity, noise, airflow, dust, and light.
• Flexible Mounting: Compact 25 31.5 mm design supporting both pinheader and SMT mounting for seamless integration.
• High Precision: Achieves a 95% recognition accuracy rate in standard indoor environments.

Application Scenarios

• Smart Home Appliances: Automatically wakes up or adjusts device modes (air conditioners, TVs) based on human occupancy.
• Intelligent Lighting: Precise control of lighting systems in offices, warehouses, and smart buildings to maximize energy savings.
• Hotel & Security Automation: Realtime room occupancy monitoring and intrusion detection for enhanced safety.
• Personnel Monitoring: Accurate multi-target tracking for flow analysis and indoor safety management systems.

Technical Specifications

Functional Parameters

Electrical Characteristics

RF Characteristics

Packing List

HLKLD6004 Module Option:

• 1 HLKLD6004 Radar Module

HLK-Test-Kit

• 1 Test Kit w/o Module

FAQ – Frequently Asked Questions

1. What is the main advantage of 60GHz radar over 24GHz?
The 60GHz band offers higher range resolution and sensitivity. This allows the LD6004 to detect micro-motions (like breathing) much more accurately and output detailed 3D coordinates which is difficult for 24GHz modules.

2. Can the HLK-LD6004 detect stationary people?
Yes, through advanced FMCW signal processing, it can detect the micro-vibrations of a human body, enabling it to maintain static presence sensing even when a person is sitting still or sleeping.

3. How many targets can it track simultaneously?
The module can track and output the x/y/z location data for up to 3 targets at the same time.

4. Is the module affected by pet movements?
While radar is sensitive to all movement, the LD6004 uses human body sensing algorithms to filter out interference. However, large pets may trigger the sensor; sensitivity can be fine-tuned via UART commands.

5. Does it work behind plastic or glass?
Yes, 60GHz signals can penetrate non-metallic materials like plastic housings or glass, allowing the sensor to be completely hidden inside a product’s casing for better aesthetics.

6. What interface is used for data output?
It primarily uses UART for reporting detailed target coordinates and status, and also features GPIO pins for simple high/low level presence signals.