Product Description

The Seeed Studio 24GHz mmWave Radar Sensor is a compact human-presence detection module using 24GHz FMCW radar technology. It combines an integrated antenna with radar signal processing and human-body detection algorithms to identify people in both moving and stationary states.

The sensor is particularly useful where simple motion detection is insufficient. It can detect human presence even when a person remains relatively stationary, making it useful for intelligent lighting, room occupancy detection, automation, and smart-home applications.

Features

• 24GHz millimeter-wave radar technology
• FMCW-based sensing
• Detects human presence and movement
• Can detect stationary people and micro-movements
• Integrated antenna design
• Compact size of approximately 22 × 18mm
• Designed as an expansion board for Seeed Studio XIAO
• 5V operating voltage
• Suitable for IoT and smart-home projects
• Privacy-oriented sensing without camera-based identification

Applications

• Smart-home presence detection
• Automatic lighting control
• Automated door systems
• Room occupancy monitoring
• Office energy management
• Intelligent appliances
• Robotics
• IoT automation
• Human activity detection
• Presence-based security and automation systems

Important Note

"Seeed Studio mmWave Radar" covers several different sensor products, including 24GHz and 60GHz models for presence, fall detection, breathing, and heartbeat sensing. The specifications above refer specifically to the 24GHz mmWave Human Static Presence Sensor for XIAO.

Detection performance depends on installation position, environment, target distance, and sensor configuration. Do not treat radar-based presence detection as a safety-critical or medical monitoring system.