How to implement a LowPass Filter?

Question

I\'m doing some math on both gyroscope and accelerometer data combined and I\'d like to low pass filter the resulting data. So could someone post some generic code for a Low Pas

Answer 1

A low pass filter is simply smoothing of the results to remove the high frequencies. The simplest low pass filter is a box filter which is done by averaging n samples together.

For averaging 2 samples together this is as simple as doing:

sample[n] (sample[n] + sample[n + 1]) / 2;