Seeed Studio 24GHz mmWave for XIAO

The 24GHz mmWave Sensor for XIAO - Human Static Presence is an extension board designed for the XIAO development platform. It serves as a highly advanced human body sensing module that utilizes FMCW (Frequency-Modulated Continuous Wave) technology to detect human targets within a designated space. Powered by sophisticated radar signal processing and precise human body sensing algorithms, this module achieves exceptional sensitivity in detecting human presence, accurately identifying both moving and stationary states. It also provides auxiliary information such as target distance calculation. Primarily deployed in indoor environments, this product offers real-time detection of moving or micro-moving human bodies.

It employs cutting-edge 24GHz millimeter wave radar sensor technology, delivering significant advantages in human body sensing applications. It exhibits remarkable sensitivity not only to moving human bodies but also to static, micro-moving, sitting, and lying human bodies, surpassing the capabilities of traditional solutions.

Featuring a maximum sensing distance of up to 5 meters and an expansive detection angle of ±60 degrees, this module guarantees accurate identification within the specified range. It supports partitioning of the sensing range and effectively shields interference from outside sources. Additionally, it supports Bluetooth functionality, allowing direct radar parameter debugging via a dedicated app, eliminating the requirement for a serial port connection.

Furthermore, the module demonstrates excellent environmental adaptability by maintaining consistent sensing performance regardless of temperature, brightness, humidity, or light fluctuations. Its shell penetration capability eliminates the need for surface perforations, enhancing the overall aesthetics of the product. The module offers flexible configuration options for the farthest sensing distance and sensitivity, enabling personalized and fine-tuned setups.

Application

• Human body sensor light control
• Life safety protection
• Smart home appliances
• Intelligent security

Specification

• Operating Frequency 24GHz~24.25GHz
• Operating Voltage DC 3.3V
• Power Supply Capacity >200mA
• Average Operating Current   79 mA
• Modulation FMCW
• Target Application Human presence sensor
• Detection Distance 0.75m ~ 6m (adjustable)
• Detection Angle ±60°
• Distance Resolution 0.75m
• Sweep Bandwidth 250MHz
• Ambient Temperature -40°C ~ 85°C
• Dimensions 18mm x 22mm