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mmwave - 24GHz Microwave Radar Distance Sensor (20 Meters)

SKU: SEN0306

The 24GHz Microwave Radar Distance Sensor is engineered for accurate distance measurement, utilizing 24GHz frequency and FMCW modulation for a range of 0.5 to 20 meters. Its pinout configuration allows versatile data output, making it adaptable for diverse applications. With an input voltage of 4-8V DC and a current greater than 100mA, the sensor is compact, measuring 34mm×44mm×5mm and weighing just 8g. It operates efficiently in temperatures from 0℃ to 70℃ and can be stored from -40℃ to 80℃. Key features include a data update speed of 10Hz, H-plane half power beamwidth of 78° (-3db), and V-plane half power beamwidth of 23° (-3db), ensuring reliable measurement data through UART output.

Overhead shot of green circuit board with 24GHz radar sensor and gold connectors-DFRobot product sku:SEN0306 image.
  • Docs
  • Tech Specs

    • 1. Example Code for Arduino-Single Target Detection

    Explore step-by-step instructions for integrating a 24GHz Microwave Radar Sensor with Arduino UNO, including hardware setup, wiring diagrams, and sample code for detecting single targets and measuring distances based on reflection intensity, perfect for hobbyists and educators.

    2. Example Code for Arduino-Multiple Targets Detection

    Detect multiple targets using the 24GHz Microwave Radar Sensor with Arduino, outputting the distance of up to 5 obstacles (maximum reflection intensity and other targets).

    Reference

    This article delves into the communication protocols of sensor modules, focusing on data output formats for distance and spectral data analysis, including UART communication and signal processing. It provides insights into algorithms for detecting multiple targets using spectral line amplitudes.

    Specification

    Parameter Value
    Input Voltage 4-8V（DC）
    Input Current >100mA
    Dimension 34mm×44mm×5mm/1.34×1.73×0.20”
    Weight 8g
    Storage Temperature -40℃~80℃
    Operating Temperature 0℃~70℃
    Transmit:
    - Detection Distance 0.5~20m
    - Frequency 24GHz
    - Power 6dBM(Max 10dBM)
    - Modulation FMCW
    Receive:
    - Data Update Speed 10Hz
    - H－Plane Half Power Beamwidth 78（-3db）
    - V－Plane Half Power beamwidth 23（-3db）

    Pinout

    Num Description
    1 Power input(4V~8V DC, Current>100mA)
    2 GND
    3 Auxiliary power supply output(3.3V). Maximum driving current 100mA
    4 UART output(TX). Output distance information or related spectral information. Band rate: 57600bit/s
    5 UART input(RX). The functionality of this interface is reserved
    6 Choose operation mode.When the interface is left floating, the output is distance data; when it is connected to GND, the output is distance + spectral data.

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