BerryGPS-IMU V3

AUD$62.00

BerryGPS-IMU v3 has been designed to fit perfectly with the Raspberry Pi Zero. It is also compatible with all other versions of the Raspberry Pi.
Sensors include are;

  • GPS
  • Accelerometer
  • Gyroscope
  • Magnetometer (Compass)
  • Barometric/Altitude
  • Temperature

 

 

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Description

BerryGPS-IMU v3 has been specifically designed for the Raspberry Pi Zero. It is also compatible with all other versions Raspberry Pi.

BerryGPS-IMU v3 is a GPS module which also includes all the sensors found in the BerryIMU v2.

The sensors found on the BerryGPS-IMU v3 are:

  1. GPS 
  2. Accelerometer
  3. Gyroscope
  4. Magnetometer (Compass)
  5. Barometric/altitude
  6. Temperature

GPS

BerryGPS-IMU v3 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 v3 also includes a uFL connector for an external antenna, which can be used when BerryGPS-IMU v3 doesn't have clear access to the sky.

 

 

An external antenna can be found here.

GPS Antenna
28dB active antenna

This external antenna increases the signal via 28dB.

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
  • 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 v3 is also fitted with a barometric sensor (BMP280) 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.

 

BerryGPS-IMU v3 is compatible will all models of Raspberry Pi, including Pi 2, Pi 3 and Zero.

Technical specifications

 

IMU sensor LSM9DS1

Gyroscope 

  • i2c and SPI  interface
  • Measurement range ±245/±500/±2000 dps
  • Sensitivity 8.75, 17.50, 70.00 mdps

Accelerometer 

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

Magnetometer 

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

Barometric Sensor BMP280

 

  • i2c interface
  • Pressure range 300 ... 1100 hPa
  • Resolution of data: Pressure: 0.18 Pa (eqiuv. to <10 cm)
  • Absolute accuracy  ±1 hPa
  • Relative accuracy ± 0.12 hPa (equiv. to ±1 m)
  • Temperature range -40  ...+85 °C

BerryGPS-IMU v3 should only be powered with a 3.3v power supply.

 

BerryGPS-IMU v3 comes with;

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

Raspberry Pi and Antenna are not included.

Some very basic soldering is required to solder on the female header.
If you would like us to solder the header for you (at no cost), please include a note when ordering.

 

 

 

GPS Guides

BerryGPS Quick Start Guide
BerryGPS Setup Guide for the Raspberry Pi
Data Logging using a BerryGPS
Navigating with Navit on the Raspberry Pi

IMU Guides and Tutorials

In this order;
Guide to interfacing a Gyro and Accelerometer with a Raspberry Pi - Kalman Filter
Create a Digital Compass with the Raspberry Pi – Part 1 – “The Basics”
Create a Digital Compass with the Raspberry Pi – Part 2 – “Tilt Compensation”
Create a Digital Compass with the Raspberry Pi – Part 3 – “Calibration”
Create a Digital Compass with the Raspberry Pi – Part 4- “Smartphone Replica”
Converting values from an Accelerometer to Gs – “ Proper Acceleration”

How to Create an Inclinometer using a Raspberry Pi and an IMU
Raspberry Pi Digital Spirit Level

BerryGPS-IMUv3 - GPS Specific datasheets

BerryGPS-IMUv2 - GPS Specific datasheets

Datasheets for IMU

Sample Code for IMU

Git repository here The code can be pulled down to your Raspberry Pi with;
pi@raspberrypi ~ $ git clone http://github.com/ozzmaker/BerryIMU.git
 

 Orientation of LSM9DS1

 

BerryGPS-IMU STEP file

BerryGPS-IMU 3D STEP