HLK-LD2402 24GHz Radar Human Presence Sensor Module

The HLK-LD2402 is a compact, intelligent 24GHz radar sensor module, designed by Hailingke, for precise human presence detection. Leveraging an AIoT millimeter-wave SoC and advanced proprietary algorithms, this module delivers high accuracy in detecting motion, micro-motion, and even static human presence within indoor environments.

Key Features

• Operates in the 24GHz ISM frequency band: Compliant with FCC and CE regulations.
• Human Presence Detection: Capable of detecting motion, micro-motion, and static presence of humans.
• Maximum Motion Detection Distance: Can detect motion up to 10 meters away.
• Wide Detection Angle: Provides broad area coverage with a detection angle of ±60°.
• Low Power Consumption: Average current consumption is approximately 50mA.
• Power Input: Supports 3.3V and 5V input power (3.0–3.6V or 4.5–5.5V ranges).
• Intelligent Sensing Algorithm: Features a built-in intelligent human presence sensing algorithm.
• Configuration: Easy configuration via UART or GPIO interface.
• Real-Time Detection: Offers real-time detection with automatic threshold generation.
• Compact Size: Ultra-compact size of 20mm × 20mm makes it easy to integrate.

Technical Specifications

ParameterMinTypMaxUnit
Operating Frequency24.0-24.25GHz
Supply Voltage3.03.33.6V
LDO Input Voltage4.55.05.5V
Max Detection Range (motion)-10-m
Detection Accuracy-±0.15-m
Average Current Consumption-50-mA
Operating Temperature-40-85°C
Module Dimensions-20 × 20-mm

Applications

• Smart Home Automation: Accurate human detection for lighting, climate control, and appliance management.
• Security Systems: Intrusion detection for access control, intercoms, and surveillance systems.
• Smart Lighting: Presence-triggered lighting control in homes, offices, or public areas.
• Commercial Devices: Proximity sensing for digital signage, kiosks, and screen wake-up functions.

Package Includes

• 1 × HLK-LD2402 Radar Human Presence Sensor Module

Compact, smart, and highly configurable, the HLK-LD2402 is your ideal solution for reliable, real-time human presence sensing in modern intelligent environments. Perfect for both electronics engineers and hobbyists interested in Arduino, Raspberry Pi, and other microcontroller projects.