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Visitor II
February 23, 2026
Solved

Clarification Request: LSM9DS1 On-Board Sensor Fusion

  • February 23, 2026
  • 3 replies
  • 172 views

Hi all, I’m confirming whether the ST LSM9DS1 provides any on-board sensor fusion output (for example quaternion/Euler), or if fusion must be done on the host MCU. If anyone has definitive guidance from ST docs/support, please share. Thanks.

Best answer by Andrew Neil

As usual, all the documentation is available via the 'Documentation' tab of the Product Page:

https://www.st.com/en/mems-and-sensors/lsm9ds1.html#documentation

3 replies

Peter BENSCH
Technical Moderator
February 23, 2026

Welcome @ra-epitome, to the community!

Please note that the device has been obsolete for some time and therefore STMicroelectronucs no longer has any documentation available. But perhaps there is still a user in the never-forgetting internet who has saved some of the data.

Regards
/Peter

Chris21
Associate II
February 23, 2026
Andrew Neil
Andrew NeilBest answer
Super User
February 27, 2026

As usual, all the documentation is available via the 'Documentation' tab of the Product Page:

https://www.st.com/en/mems-and-sensors/lsm9ds1.html#documentation

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.