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Measuring deceleration using lis2dh

Question asked by raveendran.saranya on Aug 7, 2015
We are using lis2dh accelerometer to determine the vehicle motion.For this we have configured the accelerometer for 6d direction detection.From the accelerometer readings
How can we distinguish accelerometer readings as acceleration or deceleration?

If we get a negative value from accelerometer out register ,does it means it is deceleration? or does it indicates it is accelerates/decelerates in the negative direction?