The RD-03D 24GHz Radar Sensor by Ai-Thinker is a compact, high-precision motion detection module built on FMCW (Frequency-Modulated Continuous Wave) radar technology. Designed for accurate human motion sensing, trajectory tracking, and presence detection, this module delivers reliable performance in a variety of environments.

It is equipped with Iclegend’s S5KM312CL chip. Rd-03D is an integrated microcontroller millimeter wave sensor SoC based on FMCW radar transceiver technology. It operates in the 24GHz K-band with a maximum sweep bandwidth of 0.25GHz. This module uses FMCW waveform and S5 series chip’s proprietary advanced signal processing technology, combined with MCU’s proprietary radar signal processing and built-in intelligent positioning and tracking algorithm, to detect multiple targets in a designated area and report the results in real time. It accurately senses the motion status of the human body and the area, and is equipped with an intelligent algorithm to realize motion trajectory identification and tracking, and to measure the speed and distance of targets in the area.