RCWL-0516 Microwave Radar Motion Sensor Module (Doppler Motion Detection Sensor)

The RCWL-0516 Microwave Radar Motion Sensor Module is a compact motion detection sensor based on Doppler microwave radar technology. It transmits microwave signals and detects movement by analyzing the frequency shift of reflected waves from moving objects. Unlike PIR sensors, the RCWL-0516 can detect motion through certain non-metallic materials such as plastic, glass, and thin wooden panels, making it suitable for concealed installations. The module provides a digital output signal that can be directly interfaced with Arduino, ESP32, Raspberry Pi, STM32, and other microcontroller platforms.

This sensor is widely used in automatic lighting, smart home automation, security systems, occupancy detection, and industrial motion sensing applications.

Key Features -

• RCWL-0516 microwave Doppler radar sensor

• Non-contact motion detection technology

• Detects motion through plastic, glass, and other non-metallic materials

• Digital output for easy microcontroller interfacing

• Integrated RCWL-0516 control IC

• Wide operating voltage range from 4V to 28V DC

• Fast response and stable detection performance

• Compact PCB module design

• Low power consumption

• Suitable for automation, security, and IoT projects

Specifications -

• Product type - Microwave Radar Motion Sensor Module

• Module model - RCWL-0516

• Detection method - Doppler Microwave Radar

• Operating voltage - 4V to 28V DC

• Operating frequency - Approximately 3.2GHz

• Output type - Digital Signal

• Detection range - Typical 5 to 7m (Environment Dependent)

• Detection angle - Approximately 360 Degrees (Installation Dependent)

• Trigger mode - Motion Detection Output

• Package / Mounting type - PCB Module

Applications -

• Automatic lighting systems

• Smart home automation

• Security alarm systems

• Occupancy detection

• Automatic door control

• Industrial automation

• Arduino and ESP32 projects

• IoT motion sensing devices

• Energy-saving lighting systems

• Robotics and embedded electronics