SKU: SENS-2454
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Hi-Link HLK-LD2410B 24GHz Human Presence Radar Sensor - GPIO/UART Output

₹609.00 (Inclusive of all taxes)
Out of Stock

The Hi-Link HLK-LD2410B is a 24GHz FMCW radar sensor module designed for high-sensitivity human presence detection up to 5 meters. It features GPIO and UART outputs for easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi, and supports Bluetooth configuration for tuning detection parameters.

Features

  • 24GHz FMCW Radar Technology for precise human presence detection.
  • Detects both moving and stationary human targets up to 5 meters range.
  • ±60° detection angle with configurable 0.75m distance resolution zones.
  • Dual GPIO and UART outputs for flexible system integration.
  • Configurable via Bluetooth or serial for sensitivity, range, and delay settings.

Out of stock

Description

The Hi-Link HLK-LD2410B employs Frequency-Modulated Continuous Wave (FMCW) radar technology at 24GHz to detect human presence with high sensitivity. It processes radar signals with advanced algorithms to distinguish between moving and stationary human bodies, providing reliable occupancy sensing even for micro-movements.

This sensor is engineered for indoor smart applications, offering real-time detection results. Its parameters, including sensing distance thresholds, sensitivity per zone, and unmanned delay time, are fully configurable via a serial or Bluetooth interface using the provided visual tool, allowing precise adaptation to specific installation environments and reducing false triggers.

Key Features

  • 24GHz FMCW radar core for stable, license-free operation.
  • High-sensitivity algorithm detects both motion and static presence.
  • Wide ±60-degree horizontal field of view for broad coverage.
  • Configurable detection zones with 0.75m resolution for targeted sensing.
  • Dual-output interface: GPIO for simple triggers and UART for detailed data.
  • On-board Bluetooth LE for wireless parameter configuration and debugging.
  • Compact, low-profile module design for easy integration into enclosures.
  • Optimized performance-to-cost ratio for volume smart device applications.

Applications

  • Smart lighting and HVAC occupancy-based control systems.
  • Security and intrusion detection for restricted indoor areas.
  • Energy management in offices, meeting rooms, and smart homes.
  • Presence-triggered displays and interactive kiosks.
  • Elderly care and patient monitoring for non-contact activity detection.

Technical Specifications

Manufacturer / BrandHi-Link
Model NumberHLK-LD2410B
Sensor Type24GHz FMCW Radar
Detection TargetHuman Presence (Moving & Stationary)
Maximum Range5 meters
Distance Resolution0.75 meters
Detection Angle±60 degrees
Output InterfacesGPIO, UART (TTL)
Configuration InterfaceBluetooth LE, Serial (UART)
Primary ApplicationIndoor Human Presence Sensing
Shipping Weight0.01 kg
Shipping Dimensions10 x 7 x 2 cm

Frequently Asked Questions

What is the operating voltage for the HLK-LD2410B sensor?

The module typically operates at 3.3V DC. Always verify the specific voltage requirements from the official Hi-Link datasheet before connecting power to avoid damaging the sensitive RF components.

How do I configure the detection range and sensitivity?

You can configure the HLK-LD2410B via its UART (TTL) interface or the integrated Bluetooth Low Energy (BLE) module. Use the official Hi-Link configuration tool (mobile app or PC software) to set parameters like maximum detection distance, sensitivity per zone, and the delay time before reporting an 'unoccupied' state.

What data does the sensor output via the UART interface?

The UART output provides structured data packets containing target information. This typically includes detection status (presence/absence), the distance to the detected target (with 0.75m resolution), and sometimes a movement intensity value. The specific data protocol is detailed in the manufacturer's communication manual.

Can this sensor detect through walls or obstacles?

No, the 24GHz RF signal is designed for line-of-sight or through-air detection within the same room. It cannot reliably detect through solid walls, doors, or large furniture. Its primary use is for open indoor spaces like rooms, corridors, and offices.

What is the difference between detecting motion and stationary presence?

The sensor uses advanced FMCW signal processing to distinguish between gross motion (walking) and micro-motions (breathing, slight movements). This allows it to maintain an 'occupied' state even when a person is sitting still, unlike basic PIR sensors which only trigger on movement.

Package Includes

  • 1 x Hi-Link HLK-LD2410B 24GHz Human Presence Radar Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 10 × 7 × 2 cm