The Seeed Studio ‘s  24GHz mmWave Sensor – Human Static Presence Module Lite utilizes the FMCW (Frequency Modulated Continuous Wave) principle to detect human presence. With built-in antennas and advanced signal processing, this sensor offers high sensitivity while remaining resistant to environmental interference, enabling it to accurately detect even stationary individuals.

The sensor supports Arduino, Home Assistant, and ESPHome, making integration into smart home and security systems straightforward. These compatibilities allow the sensor to be used flexibly across various applications, from home automation to commercial security setups.

The FMCW technology emits continuous waves with varying frequencies, enabling simultaneous measurement of object distances and velocities. These features make the mmWave sensor especially suitable for precise applications in human and object detection, such as intelligent lighting systems and automated door systems.

Key Features

• Based on FMCW Principle: High sensitivity and resistance to environmental interference.
• Visual Debugging and Configuration Tools: Simple operation with clear data visualization.
• Multiple Parameter Modulation Options: Configurable parameters for various scenarios.
• Arduino Library Compatibility: Supports UART and offers Arduino library integration.
• Home Assistant Ready: Comes with a guide for integration with Home Assistant.

Technical Specifications

• Operating Voltage (VCC): 4.5 – 6 V
• Operating Current (ICC): 95 – 120 mA
• I/O Current (IIO): Up to 20 mA
• Operating Temperature: -20 to +85°C
• Storage Temperature: -40 to +85°C
• Baud Rate: 115200
• Dimensions: 35mm x 30mm x 9mm
• Operating Frequency: 24.0 – 24.25 GHz
• Transmitted Power: -6 to 8 dBm
• Antenna Gain: 10 dBi
• Detection Range and Angle:
  • Movement detection: Up to 5 meters
  • Stationary/small movements: Up to 4 meters
  • Sleep mode: Up to 3.5 meters

Additional Details

• Supports visual debugging and configuration tools for intuitive data monitoring.
• Offers customization options with configurable parameters to suit a wide range of applications.