Ai-Thinker Rd-03D 24GHz mmWave Radar & Tracking Sensor

Unlock the power of professional-grade motion sensing with the Ai-Thinker Rd-03D Radar Module. Designed for complex automation and security applications, this module is equipped with the S5KM312CL millimeter-wave sensor SoC. By utilizing FMCW (Frequency Modulated Continuous Wave) radar technology, the Rd-03D goes beyond simple “presence detection” to provide accurate target positioning and trajectory tracking.

Advanced Motion & Stationary Detection

The Rd-03D intelligently distinguishes between different states of human activity:

• Movement: Walking or running.

• Micro-movement: Typing, turning a page, or shifting in a chair.

• Rest: Breathing detection while sleeping or sitting completely still.

Intelligent Tracking Algorithm

Integrated with a powerful MCU and intelligent algorithms, the module can detect multiple targets in a specified area. It reports results in real-time via serial communication, allowing developers to create systems that track movement paths, measure speed, and calculate distance with high precision.

Key Features

• High-End SoC: Powered by the S5KM312CL chip for fast recognition speed and low power consumption.

• Interference Immunity: Excellent resistance to external interference; works reliably near WiFi routers and other wireless signals.

• FMCW Technology: Operates in the 24GHz K-band with a maximum sweep bandwidth of 0.25GHz for high-resolution data.

• Real-Time Reporting: UART output allows for the immediate development of target positioning products.

• Plug & Play: Intelligent parameter adjustment via serial port makes configuration convenient and fast.

Technical Specifications

Please download the datasheet here

Typical Applications

• Public Facilities: Automatic wake-up of advertising screens or info kiosks when a user approaches.

• Smart Security: Intrusion detection with trajectory tracking to filter false alarms.

• Healthcare: Fall detection and vital sign monitoring (breathing detection).

• Smart Home: Advanced lighting control that stays on even when you are sitting still.

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