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Help changing range on ADXL345

Question asked by rquesada on Oct 14, 2011
Latest reply on Oct 20, 2011 by rquesada

We have an ADXL345 on one of AD's development boards, which uses the ADUC7024 microcontroller. We wish to change the range of the g magnitude felt by the accelerometer to +/-16g (it is +/-2g by default). The manual makes reference to writing to certain registers in order to change this setting (http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf [on page 27]). However, none of us in the lab has microcontroller programming experience, and we aren't sure what to do. Is there anyone out there who understands this and can walk me through changing the range to +/-16g? I imagine this must be incredibly easy to someone who knows how to do it, but a lab of ME fluid mechanics students is stumped, and technical support has not been helpful (they refer us to the manual without further explanation). Thanks!

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