베리GPS-IMU V4-라즈베리 파이용 GPS 및 IMU 모듈

(BerryGPS-IMU V4-GPS & 10DOF IMU for Raspberry Pi)

개요

  • 본 제품은 라즈베리 파이와 사용이 가능한 BerryGPS-IMU V4모듈입니다.
  • 라즈베리 파이 제로 사이즈의 크기를 가지고 있으며, 제로뿐 아니라 모든 버전의 라즈베리 파이와 사용이 가능합니다.
  • BerryGPS와 BerryIMU가 결합된 형태의 제품으로 GPS 데이터와 IMU 데이터를 처리할 수 있습니다.
  • 제공되는 센서는 아래와 같습니다.
    • GPS 
    • Accelerometer
    • Gyroscope
    • Magnetometer (Compass)
    • Barometric/altitude
    • Temperature

특징

  • GPS

    BerryGPS-IMU v4 uses the CAM-M8 from uBlox, which is an advanced high quality GPS module.

    3 concurrent GNSS:  Concurrent reception of up to 3 GNSS (GPS, Galileo, GLONASS, BeiDou)

    Embedded Antenna: Embedded, omnidirectional and wideband antenna

    Super Cap: The SuperCap keeps the ephemeris data stored in the battery backup RAM for 2 hours.  This allows for faster acquisitions when the module is power cycled.

    Fix and PPS indicator:  The on board LED will flash once a second when a fix has been obtained. The PPS signal is also presented on an output pin.

    Time Pulse Output (PPS): 0,25Hz – 10MHz (default 1Hz)

    Protocols:NMEA, UBX binary, RTCM

    Update Rate: Single GNSS – up to 18Hz, Dual GNSS up to 10Hz

    Connection for external antenna: BerryGPS-IMU v4 also includes a uFL connector for an external antenna, which can be used when BerryGPS-IMU v4 doesn’t have clear access to the sky.

    u-Center: A graphical interface to test and configure the  GPS module on the BerryGPS-IMU

  • Technical specifications

    Dimensions; 65 mm x 30 mm

    Weight =  6gm

    GPS Module CAM-M8

    • Low current consumption, <200uA when using Periodic mode.
    • Receiver Type;
      72-channel u-blox M8 engine
      GPS/QZSS L1 C/A, GLONASS L10F,
      BeiDou B11, Galileo E1B/C
      SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
    • Altitude of 50,000m
    • 3.3v supply
    • NMEA, UBX binary, RTCM
    • UART  4800/9600/38400/115200/230400/460800 bps
    • Max update rate 10 Hz
    • Horizontal position accuracy <2.5m CEP
    • Acquisition sensitivity -148dBm
    • Tracking sensitivity -167dBm
    • Hot start <1s
    • Assisted start <3s
    • Cold start <26s
    • Orbit prediction
    • 1PPS Sync
    • Fix/PPS LED
    • One external pin for wake up
    • Embedded antenna
    • Connector for external antenna
    • SuperCap to help store ephemeris data.

    IMU

    An inertial measurement unit, or IMU, measures and reports on velocity, orientation and gravitational forces, using a combination of an accelerometer, gyroscope and a magnetometer.

    BerryGPS-IMU v4 is also fitted with a barometric sensor (BM388) which can be used to calculate altitude. A temperature sensor is also included.

    IMUs can be found in devices like, quad copters, smart phones, segways, Wii Remote etc.. and are used to sense movement and orientation.

     

    Technical specifications of IMU

    Gyroscope  – LSM6DSL

    • i2c and SPI  interface
    • Measurement range ±125/±250/±500/±1000/±2000 dps
    • Sensitivity 4.375, 8.75, 17.50, 35, 70 mdps

    Accelerometer  – LSM6DSL

    • i2c and SPI  interface
    • Scales of ±2g / ±4g /  ±8g / ±16g

    Magnetometer – LIS3MDL

    • i2c and SPI  interface
    • Magnetic field full scale of  ±4 / ±8 / ±12 / ±16 gauss.
    • Internal temperature sensor

    Barometric Sensor BMP388

    • i2c interface
    • Pressure range 300 … 1250 hPa
    • Resolution of data: Pressure: 0.18 Pa (eqiuv. to <10 cm)
    • Absolute accuracy  ±50 Pa
    • Relative accuracy ± 8Pa (equiv. to ±0.6 m)
    • Temperature range -40  …+85 °C

     

    BerryGPS-IMU v4 is compatible with all models of Raspberry Pi, including Pi 2, Pi 3, Pi 4 and Zero as well Arduino

    BerryGPS-IMU v4 comes with;

    • BerryGPS-IMU PCB
    • 1 x female header
    • 4 x nylon standoffs, nuts and screws

    Raspberry Pi,  Antenna or QWIIC connector are not included.

    Some very basic soldering is required to solder on the female header.

문서

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