Sense the magnetic fields that surround us with this handy triple-axis magnetometer (compass) module. Magnetometers can sense where the strongest magnetic force is coming from, generally used to detect magnetic north, but can also be used for measuring magnetic fields. This sensor tends to be paired with a 6-DoF (degree of freedom) accelerometer/gyroscope to create a 9-DoF inertial measurement unit that can detect its orientation in real space thanks to Earth’s stable magnetic field. It’s a great match for the LSM6DSOX from ST!
We based this breakout on ST’s LIS2MDL, a great general-purpose magnetometer with a very wide range and both I2C and SPI interfaces. This compact sensor uses I2C to communicate and it’s very easy to use. Simply download our library connect the SCL pin to your I2C clock pin, and the SDA pin to your I2C data pin, and upload our test program to read out magnetic field data. If you’d like, you can also use SPI to receive data (we just happen to prefer I2C here)
This sensor can sense ranges from ±50 gauss (± 5000 uTesla!) with no range-setting required. For high resolution, you can read at a 100 Hz update rate. If you don’t mind a little loss of precision, the sensor can output at 150 Hz.
To make life easier so you can focus on your important work, we’ve taken the LIS2MDL and put it onto a breakout PCB along with support circuitry to let you use this little wonder with 3.3V (Feather/Raspberry Pi) or 5V (Arduino/ Metro328) logic levels. Additionally, since it speaks I2C you can easily connect it up with two wires (plus power and ground!). We’ve even included Molex PicoBlade connectors for the I2C bus so you don’t even need to solder.
Features:
- Fixed I2C address 0x1E or SPI data mode
- ?50 Gauss magnetic fixed full-scale
- Max 150 Hz update rate
- Continuous and single-conversion modes
- 16-bit data output
- Interrupt data pin in I2C mode
- Self-test mode
Package Includes:
1 x SmartElex LIS2MDL Triple-axis Magnetometer
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