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LSM303DLM Sensor Module

This past semester I have been working with my club (Iowa State Lunabotics) and we needed to interface with an accelerometer for pitch and roll data.  We happened to have a MinIMU-9 available so that is what we worked with.  So, I've started this library to interface with the LSM303DLM (accelerometer/magnetometer which is on the MinIMU-9) through an arduino.  There is a simple example that aquires the accelerometer data.

Note: Tested with the MinIMU-9 with Arduino Mega 2560 pior to refactoring for this document.

I'll try to update this document as I progress.  If anyone has any questions or comments, let me know.

Comments
dmbushuev
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Member
‎08-04-2012 07:22 AM

Trying to work with your project. Accelerometer data is indicating on the graph, but I could not understand what sensitivity is?

Judging by CTRL_REG4_A (23h) (x30) there is 3,9 mV/digit. Datasheet says:  " a sensor in steady-state on a

horizontal surface measures 0 g on both the X and Y axes, whereas the Z axis measures 1 g"

I am getting 4000 digit on the graph on the z axis

and when I put CTRL_REG4_A (23h) to the default (00000000b) then z above 16000

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