RD-03 24GHz Human Presence Detection Radar Sensor Module | CollegeRoad Electronics

Product Description

The RD-03 24GHz Human Presence Sensor Module is a compact, high-performance mmWave radar designed to detect human motion and micro-movement with exceptional accuracy.
this module provides precise human detection while maintaining low power consumption and cost efficiency — ideal for modern smart home and AIoT systems.

The RD-03 uses a single 24GHz radar transceiver with an integrated high-gain antenna to identify stationary, micro-moving, or moving human targets.
Unlike traditional infrared sensors, it operates reliably in low light, smoky, or complex environments, with strong anti-interference capability and wide coverage (±60° angle, up to 6.5 m range).

This updated version focuses purely on radar sensing — no Wi-Fi or BLE — making it perfect for developers who need simple, direct presence detection through a UART interface.

Key Features

• 24 GHz Single Radar Module – high-performance integrated transmit/receive antenna

• Accurate Human Detection – identifies presence, motion, sitting, lying, and micro-movements

• Works in All Environments – unaffected by light, temperature, or humidity

• Strong Anti-Interference – supports divided detection zones and stable results

• Plug-and-Play UART Interface – easy to connect with ESP32, Arduino, or MCUs

• Adjustable Sensitivity – visual configuration tool for flexible parameter tuning

• Wide Detection Angle – ±60° field of view, up to 6.5 m distance

• Low-Power Compact Design – 20 × 20 mm size, DIP-5 package

Application Scenarios

• Smart Home Automation
  Detects human presence or distance to control air-conditioners, fans, and lighting.

• Security & Access Control
  Used in door systems, intercoms, and motion-activated surveillance.

• Smart Lighting Systems
  Triggers lamps or displays only when people are nearby — ideal for energy-saving lighting.

• Commercial Displays / Kiosks
  Activates digital signage or interactive screens when people approach.

• EV Charging & Parking Systems
  Detects nearby people to enhance safety and prevent accidental interference.

Package Includes

• 1 × RD-03 24 GHz Human Presence Sensor Module

Product Specifications