# Mangoh Yellow Magnetometer

**URL:** <https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273>\
**Category:** Octave\
**Created:** [July 16, 2021, 4:54pm UTC](https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273 "2021-07-16T16:54:37Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lachlan](https://avatars.discourse-cdn.com/v4/letter/l/8e8cbc/32.png) [@lachlan](https://forum.sierrawireless.com/u/lachlan)\
**Post date:** [July 16, 2021, 4:54pm UTC](https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273/1 "2021-07-16T16:54:37Z")

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I can see on the Mangoh Yellow BOM that there is a Magnetometer on the board - Bosch BMM150, BOM ref U502.

I cant see this listed as a resource in Octave. It is not part of the IMU (which makes sense as it is a different component).

Am I missing where the resource for the magnetometer/ geomagnetic sensor is? Maybe I’m not looking in the right spot.

Thanks,

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**Author:** ![jerdung](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@jerdung](https://forum.sierrawireless.com/u/jerdung)\
**Post date:** [July 20, 2021, 3:56am UTC](https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273/2 "2021-07-20T03:56:35Z")

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Hi lachlan,

Please refer to this topic for magnetometer:

> **[Mangoh Yellow - Magnetometer Not Connected?](https://forum.mangoh.io/t/mangoh-yellow-magnetometer-not-connected/3135)**
>
> Hi guys, I’m having some issues getting data from the built in magnetometer on the MangOH yellow. According to the sample app, the sys interface implemented by the kernel module should be here: /sys/bus/i2c/devices/6-0010/iio:device1/ However,...

Thanks,

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**Author:** ![lachlan](https://avatars.discourse-cdn.com/v4/letter/l/8e8cbc/32.png) [@lachlan](https://forum.sierrawireless.com/u/lachlan)\
**Post date:** [July 20, 2021, 11:01pm UTC](https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273/3 "2021-07-20T23:01:32Z")

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Thanks for the reply jerdung,

I’ve read that topic but it does not refer to, or have a solution for Octave. I’m asking specifically if the magnetometer can be accessed as a resource through Octave.

Thanks,

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**Author:** ![jerdung](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@jerdung](https://forum.sierrawireless.com/u/jerdung)\
**Post date:** [July 21, 2021, 3:28am UTC](https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273/4 "2021-07-21T03:28:58Z")

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Hi lachlan,

The magnetometer is connected to the same I2C bus as the accelerometer. I would say that that I2C is not yet supported by Octave.

Thanks,

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**Author:** ![djudkins](https://avatars.discourse-cdn.com/v4/letter/d/7ea924/32.png) [@djudkins](https://forum.sierrawireless.com/u/djudkins)\
**Post date:** [July 21, 2021, 5:17pm UTC](https://forum.sierrawireless.com/t/mangoh-yellow-magnetometer/24273/5 "2021-07-21T17:17:10Z")

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Hi lachlan,

The magnetometer is not yet supported by Octave.