shop/ proximity-presence/ microwave doppler radar sensor rcwl-0516

Detect Nearby Objects Without Contact

The Microwave Doppler Radar Distance Sensor SENS-RCWL-0516 is an infrared distance sensor designed for distance measurement, obstacle detection, level checks, and basic automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Operating Voltage: 4-28V; Output Voltage: 3.2-3.4V; Output Voltage Driving Capacity: 100mA.

Important: Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.

Why you’ll love it

  • Power range: 3.2-3.4V
  • Controller output: 0V
  • Current draw: 2.8mA (typical); 3mA (max)
  • Useful spec: repeat trigger
  • Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
  • Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards

Compare with similar products

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PIR Motion Sensor HC SR505 proximity presence sensor module digital output, infrared sensing

What you can build

This sensor is a good fit for robot obstacle avoidance, tank level checks, parking aids, object counters, and range alarms.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product Microwave Doppler Radar Distance Sensor SENS-RCWL-0516
Output Voltage 3.2-3.4V
Output Voltage Driving Capacity 100mA
Output Control Low Level 0V
Output Control High Level 3.3V
Operating Voltage 4-28V
Operating Current 2.8mA (typical); 3mA (max)
Trigger Way repeat trigger
Detection Distance ~7 meters

Wiring & usage notes

Check the pin labels on the Microwave Doppler Radar Distance Sensor SENS-RCWL-0516 and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.

What’s in the box

1 × Microwave Doppler Radar Distance Sensor SENS-RCWL-0516

Frequently Asked Questions

What does the Microwave Doppler Radar Distance Sensor SENS-RCWL-0516 measure? It is designed to measure distance or object presence.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

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Notes from the bench

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Ask the community

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