https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL24657_%E2%80%93_BMM150_3-Axis_Magnetometer_Sensor%2FenWSAL24657 – BMM150 3-Axis Magnetometer Sensor/en - Versionsgeschichte2026-10-23T23:17:27ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL24657_%E2%80%93_BMM150_3-Axis_Magnetometer_Sensor/en&diff=2873&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-06T07:58:05Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
<p><b>Neue Seite</b></p><div>__NOINDEX__<br />
'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
<br />
== Summary ==<br />
Concise technical introduction to the Waveshare BMM150 magnetometer module, covering specifications, interfaces, and example integrations for Raspberry Pi, Arduino, ESP32, and Pico.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL24657 WSAL24657 – BMM150 3-axis Magnetometer Sensor, Digital Compass Sensor, Magnetic Field Measurement]<br />
<br />
== Technical overview ==<br />
* The BMM150 is a 3-axis magnetometer with I2C (default) and SPI interfaces.<br />
* Operating voltage: 3.3 V or 5 V; the module includes an onboard voltage translator.<br />
* Resolution 0.3 μT; measurement range ±1300 μT (X/Y), ±2500 μT (Z).<br />
* Data rate in normal mode: 10 Hz.<br />
* Default I2C address 0x13; changeable via A0/A1 pads (addresses 0x10–0x13 depending on pad settings).<br />
* SPI mode is enabled by re-soldering the mode-selection pads in the upper-left corner.<br />
* Example code for Raspberry Pi, Arduino, ESP32, and Pico is available as a ZIP download.<br />
* For Arduino/ESP32 demos, set the USE_I2C macro definition to 1 for I2C or 0 for SPI.<br />
<br />
'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo apt-get install wiringpi<br />
wget https://project-downloads.drogon.net/wiringpi-latest.deb && sudo dpkg -i wiringpi-latest.deb<br />
gpio -v<br />
sudo raspi-config<br />
sudo reboot<br />
ls /dev/spi*<br />
sudo apt-get update && sudo apt-get unzip<br />
wget https://files.waveshare.com/upload/6/67/BMM150_3-Axis_Magnetometer_Sensor_code.zip && unzip BMM150_3-Axis_Magnetometer_Sensor_code.zip<br />
cd BMM150_3-Axis_Magnetometer_Sensor_code/RaspberryPi/I2C && make clean && make && sudo ./bmm150<br />
cd BMM150_3-Axis_Magnetometer_Sensor_code/RaspberryPi/SPI && make clean && make && sudo ./bmm150<br />
cd RaspberryPi/python && sudo python get_geomagnetic_data.py<br />
i2cdetect -y 1<br />
</syntaxhighlight><br />
<br />
== Notes and version constraints ==<br />
* The exact I2C address depends on the A0/A1 pads; verify the correct address before testing.<br />
* Switching to SPI requires soldering the pads – this step needs soldering access.<br />
* Raspberry Pi 4B may require an updated wiringPi; version 2.52 is expected.<br />
* MicroPython firmware installation on Pico can be done offline if network issues occur.<br />
* If data does not display correctly: check wiring, communication method, and device address.<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/BMM150_3-Axis_Magnetometer_Sensor BMM150 3-Axis Magnetometer Sensor - Waveshare Wiki]<br />
* Source revision: 99688<br />
* Captured: 2026-09-05T02:35:35+00:00<br />
* SHA-256: <code>7148c23dc1b7700ae314d0eac957aa3018ac7e73f959b03e3c5967b77346c6d6</code></div>JWTechPublisher