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  1. Parts
  2. /Sensors
  3. /Other sensors

mmWave Radar 24GHz Human Presence Detection Sensor (9m)

OverviewWiringAlternates
mmWave Radar 24GHz Human Presence Detection Sensor (9m) - DFRobot - SEN0395

24GHz FMCW mmWave radar detecting human presence (both motion and stillness) up to 9m via serial (115200 baud) or I/O. Operates 3.6–5V at 90mA; 100×40° beam angle, -40 to 85°C range.

Parts tray full · 5 max · remove a part to add another
mmWave Radar 24GHz Human Presence Detection Sensor (9m) — DFRobot — SEN0395

Offers

  • DFRobot$29.00
  • ?DigiKey$29.00

Offers

  • DFRobot$29.00
  • ?DigiKey$29.00

Pinout

Logical pinout · physical placement not verified
MMWAVE RADAR 24GHZ HUMUART TxGNDUART RxVCCGPIO1NCGPIO2NC
  • UART TxOfficial table 2 row 1

    Sensor UART Transmiting

    Type · UART
  • UART RxOfficial table 2 row 2

    Sensor UART Receiving

    Type · Power
  • GPIO1Official table 2 row 3

    Universal Input and Output

    Type · GPIO
  • GPIO2Official table 2 row 4

    Universal Input and Output(By default, it outputs high when people presence detected, otherwise, output low)

    Type · GPIO
  • GNDOfficial table 2 row 5

    Ground

    Type · Ground
  • VCCOfficial table 2 row 6

    Power +

    Type · Power
  • NCOfficial table 2 row 7

    Reserved, left floating

    Type · Control
  • NCOfficial table 2 row 8

    Reserved, left floating

    Type · Control
PinPositionTypeFunction
UART TxOfficial table 2 row 1UARTSensor UART Transmiting
UART RxOfficial table 2 row 2PowerSensor UART Receiving
GPIO1Official table 2 row 3GPIOUniversal Input and Output
GPIO2Official table 2 row 4GPIOUniversal Input and Output(By default, it outputs high when people presence detected, otherwise, output low)
GNDOfficial table 2 row 5GroundGround
VCCOfficial table 2 row 6PowerPower +
NCOfficial table 2 row 7ControlReserved, left floating
NCOfficial table 2 row 8ControlReserved, left floating
Logical pinout · physical placement not verified
MMWAVE RADAR 24GHZ HUMUART TxGNDUART RxVCCGPIO1NCGPIO2NC

Pin details

8 connections
  1. UART Tx

    Sensor UART Transmiting

    UART
    Official table 2 row 1
  2. UART Rx

    Sensor UART Receiving

    Power
    Official table 2 row 2
  3. GPIO1

    Universal Input and Output

    GPIO
    Official table 2 row 3
  4. GPIO2

    Universal Input and Output(By default, it outputs high when people presence detected, otherwise, output low)

    GPIO
    Official table 2 row 4
  5. GND

    Ground

    Ground
    Official table 2 row 5
  6. VCC

    Power +

    Power
    Official table 2 row 6
  7. NC

    Reserved, left floating

    Control
    Official table 2 row 7
  8. NC

    Reserved, left floating

    Control
    Official table 2 row 8

Start wiring

Analog · I2C · UART · 3.3 – 5 V · Breakout

Verify supply voltage and logic levels before powering up.

Module pins: UART Rx, VCC, GND, UART Tx. Schematik maps them to your board in the app.

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