LSM303DLM 3D Compass and Accelerometer Carrier with Voltage Regulators

File downloads

• LSM303DLM datasheet (519k pdf)

  Datasheet for the ST LSM303DLM 3-axis accelerometer and 3-axis magnetometer.

• Using LSM303DLH for a tilt-compensated electronic compass (1MB pdf)

  An application note by ST on how to use the LSM303DLH as a tilt-compensated compass. This application note mostly applies to the very similar LSM303DLM as well (when replacing the DLH with the DLM, the main difference to note is that the magnetometer Y and Z registers have been swapped).

• LSM303DLM Orangutan example project (5k zip)

  This sample program shows how to use an LSM303DLM 3D compass and accelerometer carrier with an Orangutan robot controller to build a tilt-compensated digital compass. The AVR Studio project is set up for an ATmega328P microcontroller, but it will work on other Orangutans with simple changes to the project configuration.

• UM10204 I²C-bus specification and user manual (1MB pdf)

  The official specification for the I²C-bus, which is maintained by NXP.

Recommended links

• LSM303 Arduino library

  This is a library for the Arduino that interfaces with our LSM303D, LSM303DLHC, and LSM303DLM 3D compass and accelerometer carriers as well as the compass and accelerometer ICs on the MinIMU-9 v3 and AltIMU-10 v3 (it also works with older versions of those boards, some of which used the LSM303DLH and LSM303DLHC). It makes it simple to configure the device and read the raw accelerometer and magnetometer data, and it has a function for computing the tilt-compensated heading for those looking to use the LSM303 as a tilt-compensated compass.

• mbed library for the LSM303DLH

  This is a library for the ARM mbed development board that interfaces with the LSM303DLH 3D compass and accelerometer carrier and provides the tilt-compensated magnetic heading. It can be easily modified to work with the newer and very similar LSM303DLHC 3D compass and accelerometer carrier by swapping the magnetometer Y and Z registers. This library was not written and is not maintained by Pololu.

• 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.