BerryGPS-IMUv3 has been specifically designed for the Raspberry Pi Zero. It is also compatible with all other versions Raspberry Pi.

BerryGPS-IMUv3 is a GPS module which also includes all the sensors found in the BerryIMUv2.

Here is a list of all the sensors found on the BerryGPS-IMUv3:

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

BerryGPS-IMUv3 uses the CAM-M8 from uBlox, which is an advanced high quality GPS module..

Built in antenna:

BerryGPS-IMUv3 comes with an inbuilt 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

PPS: BerryGPS-IMUv3 also includes Pulse Per Second(PPS) functionality. 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-IMUv3 also includes a uFL connector for an external antenna, which can be used when BerryGPS-IMUv3 doesn't have clear access to the sky.

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 (0,25Hz - 10MHz (default 1Hz))

-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-IMUv3 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.

Technical specifications:

IMU sensor LSM9DS1

Gyroscope:

• i2c 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-IMUv3 should only be powered with a 3.3v power supply.

BerryGPS-IMUv3 comes with;

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

Raspberry Pi not included.

Optional External Antenna

We also have an optional external antenna.

Connecting this antenna to your BerryGPS will improve its GPS reception by 28dB.

An external antenna is useful your BerryGPS doesn’t have clear access to the sky. E.g. when used in doors.

This antenna is waterproof and also has a magnetic base, it is 3 meters in length and uses a SMA connector.

Comes with a uFL to SMA adapter to assist with connecting this antenna to a BerryGPS.

Guides and Tutorials:

For the GPS

BerryGPS Quick Start Guide

BerryGPS setup Guide for the Raspberry Pi

BerryGPS Data logger

Navigating with Navit on the Raspberry Pi

For the IMU

BerryIMU Quick Start Guide

Guide to interfacing a Gyro and Accelerometer with a Raspberry Pi

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”

These cover both BerryIMU and displaying graphics with SDL;

How to Create an Inclinometer using a Raspberry Pi and an IMU

Raspberry Pi Digital Spirite Level

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 leave a note when ordering.