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MinIMU-9 v5 Gyro, Accelerometer, and Compass (LSM6DS33 and LIS3MDL Carrier)
The Pololu MinIMU-9 v5 is an inertial measurement unit (IMU) that packs an LSM6DS33 3-axis gyro and 3-axis accelerometer and an LIS3MDL 3-axis magnetometer onto a tiny 0.8″ × 0.5″ board. An I²C interface accesses nine independent rotation, acceleration, and magnetic measurements that can be used to calculate the sensor’s absolute orientation. The MinIMU-9 v5 board includes a voltage regulator and a level-shifting circuit that allow operation from 2.5 to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards.
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Description | Specs (10) | Pictures (7) | Resources (14) | FAQs (0) | On the blog (3) |
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File downloads
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LSM6DS33 datasheet (1MB pdf)
Datasheet for the ST LSM6DS33 3D accelerometer and 3D gyroscope.
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AN4682: LSM6DS33 application note (1MB pdf)
This application note from ST provides usage information and application hints for the LSM6DS33 accelerometer and gyro.
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LIS3MDL datasheet (2MB pdf)
Datasheet for the ST LIS3MDL 3-axis magnetometer.
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AN4602: LIS3MDL application note (598k pdf)
This application note from ST provides usage information and application hints for the LIS3MDL magnetometer.
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UM10204 I²C-bus specification and user manual (1MB pdf)
The official specification for the I²C-bus, which is maintained by NXP.
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MinIMU-9 v5 schematic diagram (106k pdf)
Printable schematic diagram of the MinIMU-9 v5 Gyro, Accelerometer, and Compass (LSM6DS33 and LIS3MDL Carrier).
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Dimension diagram of the MinIMU-9 v5 Gyro, Accelerometer, and Compass (LSM6DS33 and LIS3MDL Carrier) (326k pdf)
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Drill guide for the MinIMU-9 v5 Gyro, Accelerometer, and Compass (LSM6DS33 and LIS3MDL Carrier) (19k dxf)
This DXF drawing shows the locations of all of the board’s holes.
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3D model of the MinIMU-9 v5 Gyro, Accelerometer, and Compass (LSM6DS33 and LIS3MDL Carrier) (3MB step)
Recommended links
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LSM6 library for Arduino
An Arduino library for interfacing with the LSM6DSO and LSM6DS33 accelerometer and gyro ICs.
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LIS3MDL library for Arduino
An Arduino library for interfacing with the LIS3MDL magnetometer.
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MinIMU-9 + Arduino AHRS
This Arduino program (sketch) allows an Arduino connected to a MinIMU-9 v5 or AltIMU-10 v5 (or older versions of those boards) to function as an attitude and heading reference system, calculating estimated roll, pitch, and yaw angles from sensor readings that can be visualized with a 3D test program on a PC. It is based on the work of Jordi Munoz, William Premerlani, Jose Julio, and Doug Weibel.
Visualization of AHRS orientation calculated from MinIMU-9 readings.
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minimu9-ahrs software for Raspberry Pi
This is a program for reading sensor data from Pololu IMU boards over I²C. It was written for and tested on the Raspberry Pi, but it will probably also work on similar embedded Linux boards that support I²C.
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Quick and Dirty Compass Calibration in 3d
A blog post by Michael Shimniok about calibrating the magnetometer in the LSM303DLH and visualizing magnetic distortions. This information can generally be applied to other magnetometers as well.