HLK-LD2402 24G mmWave Radar Human Presence & Motion Sensing Module
The HLK-LD2402 is a 24GHz millimeter-wave radar module capable of detecting human presence, motion, and micro-movements with exceptional accuracy. It uses advanced FMCW radar technology, allowing it to outperform traditional infrared and ultrasonic sensors.
This makes it especially useful for smart lighting, energy-saving systems, security, occupancy detection, and academic research projects in Bangladesh.
Whether you are a polytechnic student, university engineering student, or a professional developer, this module provides reliable sensing performance with low power consumption and simple UART communication.
Features:
24GHz mmWave radar technology
Detects moving and stationary humans
Works through plastic, glass, and thin walls
High sensitivity with adjustable parameters
Low power consumption
Compact size for embedded projects
UART communication interface
Strong alternative to PIR sensors
Specifications:
| Specification | Details |
|---|---|
| Model | HLK-LD2402 |
| Operating Frequency | 24GHz |
| Detection Type | Human presence & motion |
| Detection Range | Up to 5 meters (adjustable) |
| Interface | UART (TX/RX) |
| Operating Voltage | 5V |
| Current Consumption | Low power |
| Output Data | Motion, presence, distance |
| Supported Controllers | Arduino, ESP32, ESP8266, STM32 |
| Operating Environment | Indoor |
Use Cases:
Smart room automation for homes and hostels
Automatic lighting and fan control
Smart classroom and lab projects
IoT research and final-year engineering projects
Security and occupancy detection systems
Energy-efficient building solutions
Why Buy from bdelectronics.xyz
Trusted electronics supplier in Bangladesh
Ideal for students and engineers
Quality-checked components
Fast local delivery
Affordable pricing for learning and R&D
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