Product description: Fermion - 3-axis magnetometer - BMM150 - I2C / SPI - DFRobot SEN0419
Module with a three-axis magnetometer from DFRobot , equipped with a Bosch BMM150 system - based on the FlipCore technology. It enables the measurement of the magnetic field in the range of ± 1300 uT (X and Y axis) and ± 2500 uT (Z axis) with a measurement resolution of 0.3 uT . The module provides information about absolute orientation with high accuracy and precision of measurements.
Kit contents
- Fermion - 3-axis magnetometer - BMM150 - I2C / SPI - DFRobot SEN0419 - 1 looking
- 1x9 goldpin strip - 2.54 mm raster - 1 piece
The set also includes the 1x9 goldpin strip - 2.54 mm raster - intended for self-soldering.
Fermion - 3-axis magnetometer - BMM150 - I2C / SPI - DFRobot SEN0419.
Magnetometer principle of operation
The most common questions are: what is a magnetometer? What is a magnetometer for? The answers to these questions (and more) can be found on our blog in the article Magnetometr - how does it work and what is it for?
Application magnetometer
- Intelligence drones
- Recreational drones
- Indoor and outdoor navigation in open spaces
- Collecting information about the magnetic course
- Augmented Reality
- Tilt-compensated electronic compass for map rotation
- Magnetometer in the phone
Pinout description and connection diagram using the Raspberry Pi
The module has outputs in the form of solder pads to which the goldpin strip included in the set should be soldered. Each lead has been described, which makes the connection much easier.
- VCC - power pin
- GND - the ground of the system
- SCK - clock line of the I2C / SPI interface
- SDI - data line of the I2C / SPI interface (input)
- SDO - data line of the SPI interface (output)
- CS - Chip Select
- PS - selection of the communication protocol
- DRDY - ready to receive / transmit data
- INT - interrupt pin
Connection diagram of the sensor with the Raspberry Pi 4B.
Fermion - 3-axis magnetometer - BMM150 - rear view.
Technical specification of the module
- Supply voltage: 3.3 V
- Measurement range: ± 1300 uT (X, Y axis), ± 2500 uT (Z axis)
- Measurement resolution: 0.3 uT
- Accuracy: 30 uT
- Zero-B Offset: ± 40 uT / ± 2 uT
- Non-linearity: <1% FS
- Accuracy of the magnetometer heading: horizontal component of the geomagnetic field 30 uT, ± 2.5 °
- Communication interface: I2C or SPI
- I2C bus address: 0x13
- Current consumption: from 170 uA to 500 uA
- Dimensions: 25 x 15 mm
