Advanced 24G Millimeter Wave Radar Sensor for Intelligent Human Motion Detection (LD2420 - welding 2pcs)

Product Introduction

🪶 The HLK-LD2420 is an advanced 24 GHz radar module designed for high-performance human body detection and micro-motion sensing. Equipped with a send-and-receive antenna, this module harnesses the power of millimeter-wave radar technology, coupled with sophisticated algorithms developed from S3 series chips. This combination allows for accurate detection of movement, subtle motions, and the presence of a stationary human body within its operating range.

👌 Specifically engineered for indoor applications, the HLK-LD2420 can detect human movement and nuances in motion up to a maximum distance of 8 meters. It provides real-time updates on detection results, making it an ideal choice for dynamic environments. Users can effortlessly configure the sensing range and sensitivity settings, along with the refresh rate, to adapt to various indoor scenarios. Its GPIO and UART interfaces ensure easy integration into different smart applications and terminal devices.

🎯 Product Features and Benefits

🔧 Features:

• Integrated single-chip intelligent millimeter-wave sensor System on Chip (SoC) with optimized algorithm firmware
• Compact dimensions: a mere 20 mm x 20 mm
• Pre-configured human detection settings for immediate plug-and-play functionality
• Operates within the 24 GHz ISM frequency band, compliant with FCC, CE, and other regulatory standards
• Flexible power supply options from 3.0 V to 3.6 V, with typical operation at 3.3 V
• Efficient average operating current of just 50 mA
• Designed for detecting both migrating and micro-migrating human bodies
• Capable of real-time result reporting for instantaneous feedback
• Equipped with visualization tools for convenient configuration of detection distance intervals and sensitivity settings
• Features range division capabilities to effectively eliminate interference from outside sources
• Short-range detection capability down to 0.2 m, ensuring no blind spots
• Exceptional sensing range extends up to 8 m for human motion detection
• Generous detection angle of up to 60 degrees for broad coverage
• Versatile installation options available, including ceiling and wall-mounted configurations
• Offers independent configuration for triggering and hold states, providing robust resistance to interference

🪶 Application Scenarios

• Smart Home: Detects human presence and distance, allowing for intelligent control of home appliances based on occupancy.
• Smart Business: Monitors human proximity and activates screens or devices accordingly, ensuring they remain on while people are present.
• Smart Security: Utilized in access control systems, building intercoms, and electronic peepholes to enhance safety and surveillance.
• Smart Lighting: Identifies and senses human presence to manage lighting systems efficiently in public spaces, such as sensing lights and bulbs.

🧩 Hardware Description

🔧 As illustrated in the accompanying images, the HLK-LD2420 module features five pin holes designated J2 for power and communication purposes. Additionally, J1 serves as the SWD interface, utilized for MCU programming and debugging.

Pin Configuration:

🧩 Module Dimensions: All measurements are in mm. The module thickness is 1.2 mm with a tolerance of ±10%.