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https://github.com/9peo0xnd/imu_atoms3r

M5AtomS3R built-in 9DoF IMU test
https://github.com/9peo0xnd/imu_atoms3r

bmi270 bmm150 imu m5atoms3 m5stack m5unified platformio

Last synced: 3 days ago
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M5AtomS3R built-in 9DoF IMU test

Host: GitHub
URL: https://github.com/9peo0xnd/imu_atoms3r
Owner: 9PEO0xNd
Created: 2025-01-31T22:28:15.000Z (4 days ago)
Default Branch: main
Last Pushed: 2025-02-01T06:13:12.000Z (3 days ago)
Last Synced: 2025-02-01T07:20:06.109Z (3 days ago)
Topics: bmi270, bmm150, imu, m5atoms3, m5stack, m5unified, platformio
Language: C
Homepage:
Size: 2.67 MB
Stars: 0
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

# M5ATOMS3R IMU Examples

## Do not use this unit in situations involving safety to life.

9DoF test
![9DoF Display](image/DSC_0072.JPG)

3D compass
hsi_S and ehou2025_S
![HSI Display](image/DSC_0071.JPG)

Orientation
![orientation](image/orientation.png)

- BMI270 I2C address = 0x68
- Tohoku elder sister is not included.

## PlatformIO only (not worked Arduino-IDE)
Copy example code to src folder and rename main.cpp

- Modifed bmm150_defs.h using floating point
~~~
/******************************************************************************/
/*! @name Compiler switch macros Definitions */
/******************************************************************************/
#define BMM150_USE_FLOATING_POINT //OK

#ifndef BMM150_USE_FLOATING_POINT /*< Check if floating point (using BMM150_USE_FLOATING_POINT) is enabled */
#ifndef BMM150_USE_FIXED_POINT /*< If floating point is not enabled then enable BMM150_USE_FIXED_POINT */
#define BMM150_USE_FIXED_POINT
#endif
#endif
~~~

## Serial Monitor
To keep the display speed, use M5.Log.Printf instead of Serial or USBSerial

## Caribration
Press BTN-A(display). And flip random direction.

## References
https://github.com/boschsensortec/BMI270_SensorDriver
https://github.com/boschsensortec/BMM150_SensorDriver
https://github.com/m5stack/M5Unified
https://x-io.co.uk/open-source-imu-and-ahrs-algorithms/
picture data converter: https://lang-ship.com/blog/

## License
- 9PEO0xNd - MIT
- M5Unified - MIT by M5Stack
- BMI270 BSD-3-Clause license by BoschSensortec
- BMM150 BSD-3-Clause license by BoschSensortec

## History
2025/Jan/31 Initial release