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1. Product Introduction
▫️ Overview
Rd-03E
- Rd-03E is a radar module developed by Ai-Thinker Co., Ltd.equipped with the S3KM111L chip from ICLEGEND MICRO. Operating in the 24GHz K-band, it features a modulation bandwidth of up to 1GHz per single-frequency scan.
- Using FMCW waveform and advanced signal processing technology proprietary to the S3 series chips, this module enables precise human presence detection, distance measurement with real-time distance display, and gesture recognition. The Rd-03E module can detect and identify moving or subtly-moving humans, report real-time distances, and detect targets and gestures within specified areas to provide instant results.
▫️ Features
- Smart Home: Sensing motion and micro movements of the human body, reporting monitoring results, and intelligently controlling the operation of household appliances.
- Smart Security: Supports motion-activated access control, alarm and camera linkage applications.
- Smart Lighting: Provides precise human detection for public or home lighting (e.g., motion-sensing lamps, bulbs, table lamps).
- Smart Commerce: Detects human proximity within configurable distance ranges, activates displays, and maintains device operation during presence.
- New Energy Charging/Parking Monitoring: Triggers EV charging station displays, monitors parking spaces, and prevents unauthorized access to wireless charging areas.
▫️ Comparison Table
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Parameter
| Product Image |
| Wireless Protocol |
| Chip |
| Module Flash Size (Mbits) |
| Frequency Band (MHz) |
| Package |
| Dimensions (L×W×H) (mm) |
| Operating Temp Range (℃) |
| Storage Temp Range (℃) |
| Antenna Type |
| Available GPIO |
| Min Voltage (V) |
| Max Voltage (V) |
| Typical Voltage (V) |
| Min Power Current (mA) |
| Rx Current (mA) |
| Deep Sleep Current (μA) |
| Certifications |
| Max TX Power (dBm) |
| Modulation |
2. About Modules
| Module | Datasheets |
|---|---|
| Rd-03E | View |
3. Firmware Related
▫️ Regular Firmware
| Module | Firmware Build | Firmware Description | Version | Firmware Download | Host Software |
|---|---|---|---|---|---|
| Rd-03E | ★ Build 2268 | Precision Ranging Standard Firmware | V1.0.0 | Download | Download |
| Rd-03E | Build 2269 | Gesture Recognition Standard Firmware | V1.0.0 | Download | Download |
4. Development Guide
▫️ Host Computer Tools
- Rd-03E Quick Start Guide: View
- Rd-03E Precision Ranging Host Computer Tool: Download
- Rd-03E Gesture Recognition Host Computer Tool: Download
▫️ Development Tutorials
- STM32 Driver for Ai-Thinker Rd-03E: LED Lighting Tutorial: View