BerryGPS-IMU v3 has been specifically designed for the Raspberry Pi Zero. It is also compatible with all other 40-pin versions of 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:
- Magnetometer (Compass)
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 onboard 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.
u-Center: A graphical interface to test and configure the GPS module on the BerryGPS-IMU
- 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.
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.
IMU sensor LSM9DS1
- i2c and SPI interface
- Measurement range ±245/±500/±2000 dps
- Sensitivity 8.75, 17.50, 70.00 mdps
- i2c interface
- Scales of ±2g / ±4g / ±8g / ±16g
- 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.
BerryGPS-IMU Guides and Tutorials
For the GPS:
- BerryGPS setup Guide for Raspberry PI
- BerryGPS Data logger using a BerryGPS
- Navigating with Navit on the Raspberry Pi
- Use u-Center graphical interface to control GPS
For the IMU, In this order;
In this order;
- Guide to interfacing a Gyro and Accelerometer with a Raspberry Pi
- 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
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