| Soldered BMM350 Geomagnetic Sensor breakout |
Breakout board for the Bosch BMM350 geomagnetic sensor, measuring magnetic field on all three axes with a resolution down to 20 nT, output data rates up to 400 Hz and a data-ready interrupt. It supports normal and forced power modes for balancing measurement speed against power consumption. The board communicates over I2C only and is part of the Qwiic ecosystem.
from bmm350 import BMM350, BMM350_OK
import time
sensor = BMM350() # Or BMM350(address=BMM350_I2C_ADSEL_SET_HIGH) if ADSEL is pulled high
while True:
if sensor.get_sensor_data() == BMM350_OK:
print(sensor.data.mag_x, sensor.data.mag_y, sensor.data.mag_z, sensor.data.temperature)
time.sleep(1)Have a look at the scripts in Examples/ for basic readings, the sensor's physical interrupt pin, and the built-in self-test.
Use mim.
or
After installing the mpremote package, install the library on your board using the following command:
mpremote mip install github:SolderedElectronics/Soldered-BMM350-MicroPython-LibraryOr, if you're running a Windows OS:
python -m mpremote mip install github:SolderedElectronics/Soldered-BMM350-MicroPython-Library- bmm350.py - MicroPython driver class, I2C only
- package.json - mip install manifest
- /Examples - examples for basic readings, the physical interrupt pin, and the self-test
| Example | What it does |
|---|---|
bmm350-basicReadings.py |
Reads magnetometer and temperature data in a loop in normal power mode, the mode most applications want |
bmm350-dataReadyInterrupt.py |
Uses the sensor's physical interrupt pin to know when a new reading is ready, instead of polling the interrupt status register |
bmm350-selfTest.py |
Runs the sensor's built-in self-test and reports pass/fail per axis |
You can find hardware design for this board in Soldered BMM350 Geomagnetic Sensor breakout hardware repository.
Access library documentation here.
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This library is a register-level port of the BMM350_SensorAPI by Bosch Sensortec, cross-checked against the Soldered Arduino and ESP-IDF BMM350 libraries. Thank you, Bosch Sensortec.
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