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DFRobot

DFRobot mmWave C4001 Human Presence Detection Sensor (25 m)

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DF Robot Modules for everyday users

The DFRobot mmWave C4001 Human Presence Detection Sensor (25 m) by DFRobot is a mid-range df robot modules designed for everyday users. It features Operating Voltage (V): 3.3 and Detection range: 25m.

₹1,995
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Total: ₹1,995
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 17 Aug31 Aug
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Quick Specs

Operating Voltage (V): 3.3
Detection range: 25m
Modulation Mode: FMCW
Frequency (GHz): 24
Operating Temperature (°C): -40~85
Baud Rate (bps): 9600

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-1985878Category: DF Robot Modules

About This Product

The DFRobot mmWave C4001 Human Presence Detection Sensor (25 m) by DFRobot is a mid-range df robot modules designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Operating Voltage (V): 3.3 — works with standard household power
  • Detection range: 25m — reliable connection even at a distance
  • Modulation Mode: FMCW
  • Frequency (GHz): 24 — smooth, flicker-free operation
  • Operating Temperature (°C): -40~85
  • Baud Rate (bps): 9600
  • Shipping Weight: 0.01 kg
  • Shipping Dimensions: 7 × 7 × 1 cm

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The C4001 millimeter-wave presence sensor utilizes a wavelength signal of 24GHz. It has a detection range of 100° horizontally, with a presence detection range of 16 meters and a motion detection and distance measurement range of 25 meters. It is suitable for human presence detection, environmental monitoring, and real-time monitoring projects.

Applications:

  1. Human Detection
  2. Distance and Velocity Detection
  3. Environmental Monitoring
  4. Industrial Automation
  5. Real-time Monitoring and Tracking

Features:

  1. Human detection: Detection range up to 16 meters and motion detection range up to 25 meters.
  2. Distance detection: Range from 1.2 meters to 25 meters.
  3. Velocity detection: Range from 0.1 meters per second to 10 meters per second.
  4. Strong anti-interference capability, unaffected by snow, haze, temperature, humidity, dust, light, noise, etc.
  5. High and low-level output control through I/O ports.
  6. Input and output control via serial port.
  7. Small size, easy to integrate.

Package Includes:

1 x C4001 mmWave Presence Sensor 25m 5-pin header

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.