SKU: SENS-2409
📋 GST Invoice Available

Hi-Link HLK-LD2410D 24GHz Motion & Human Presence Sensor Module - UART/GPIO Interface

₹499.00 (Inclusive of all taxes)
Out of Stock

The Hi-Link HLK-LD2410D is a 24GHz millimeter-wave radar sensor module designed for precise motion and stationary human presence detection. Operating at 5V DC, it provides UART and GPIO outputs for seamless integration with Arduino, Raspberry Pi, ESP32, and other microcontroller platforms.

Features

  • 24GHz FMCW radar detects motion, micro-motion, and stationary human presence up to 6 meters.
  • Dual voltage support (3.0-3.6V or 4.5-5.5V) with a default 5V DC operation for broad compatibility.
  • Real-time data output via UART (115200 bps) and configurable GPIO high/low signals.
  • Compact 7x35mm form factor with a wide ±60° detection angle for space-constrained installations.
  • Industrial-grade operating temperature range from -40°C to 85°C for reliable performance.

Out of stock

Description

The HLK-LD2410D utilizes Frequency Modulated Continuous Wave (FMCW) radar technology within the 24-24.25 GHz ISM band to detect subtle movements and stationary human presence. Its advanced signal processing algorithms differentiate between motion, micro-motion (like breathing), and static targets, providing a significant advantage over traditional PIR sensors. The module outputs real-time detection data and distance information through its serial interface.

Engineered for robust integration, the sensor features configurable sensitivity, detection range, and hold time via UART commands. Its compact, surface-mount design and low 50mA average current consumption make it suitable for battery-powered and embedded smart systems requiring continuous, reliable presence sensing.

Key Features

  • 24GHz FMCW Radar with 0.25 GHz sweep bandwidth for high-resolution target discrimination.
  • Intelligent algorithm distinguishes between motion, micro-motion, and stationary human presence.
  • Configurable detection parameters (range, sensitivity, delay) via UART for application-specific tuning.
  • Dual-output interface: UART for detailed data and GPIO for simple trigger signals.
  • Wide operating temperature range (-40°C to 85°C) ensures reliability in harsh environments.
  • Ultra-compact 7mm x 35mm PCB footprint optimized for miniaturized device integration.
  • Low power consumption design suitable for always-on IoT and smart home applications.

Applications

  • Smart lighting and HVAC control for energy savings based on room occupancy.
  • Intruder detection and security system activation in residential and commercial settings.
  • Touchless interactive displays and kiosks that activate upon user approach.
  • Office automation for managing monitor sleep states and conference room booking systems.
  • Elderly care and patient monitoring for fall detection and activity logging.

Technical Specifications

Item TypeHuman Presence Sensor Module
Frequency Band24 – 24.25 GHz
Sweep Bandwidth0.25 GHz
EIRP11 dBm
Operating Voltage3.0–3.6V / 4.5–5.5V
Default Voltage5V
Detection Range (Max)Up to 6 m
Motion Detection Range5 m
Micro-motion Range4 m
Distance Resolution0.75 m
Detection Angle±60°
Average Current50 mA
Data Refresh Cycle165 ms
Operating Temperature-40°C to 85°C
InterfaceGPIO, UART
UART Baud Rate115200 bps
OutputHigh/Low signal + Serial data
Pin Count5 Pins
MountingWall / Ceiling
Dimensions7 × 35 mm
Weight2 g

Frequently Asked Questions

What is the operating voltage range for the HLK-LD2410D sensor?

The HLK-LD2410D supports two voltage ranges: 3.0-3.6V for 3.3V logic systems and 4.5-5.5V for 5V systems. The module is typically configured and used with a default 5V DC supply. Ensure your power source is stable within these ranges for reliable operation.

How do I interface with this sensor and read its data?

The module provides two primary interfaces: a UART serial port and GPIO pins. For detailed data (presence state, distance, signal strength), connect the TX/RX pins to a microcontroller's UART at 115200 baud. For a simple trigger, use the GPIO output which goes high when a target is detected.

Can this sensor detect a person who is completely still?

Yes, the HLK-LD2410D uses advanced 24GHz FMCW radar and algorithms to detect micro-motions, such as breathing or slight shifts, allowing it to identify stationary human presence within its 4-meter micro-motion range, unlike standard PIR sensors.

What is the maximum detection range and how can I configure it?

The maximum configurable detection range is up to 6 meters. You can adjust the sensitivity and specific range thresholds (for motion and stationary detection) by sending configuration commands over the UART interface using the provided protocol from Hi-Link.

Is this sensor suitable for outdoor use?

While its operating temperature range (-40°C to 85°C) is wide, the HLK-LD2410D is primarily designed for indoor applications. For outdoor use, it requires a protective enclosure to shield it from direct moisture, rain, and UV exposure, as it lacks an official IP rating.

Package Includes

  • 1 x Hi-Link HLK-LD2410D 24GHz Motion & Human Presence Sensor Module

Additional Information

Weight 0.002 kg
Dimensions 3.5 × 0.7 cm