Help and advice on filtering accelerometer data from pothole event

[MikeMl]

If V(cc) = 5V, then the two 100K R6,R7 should have centered the output pin of the opamps at 2.5V. It really doesn't matter if the bandpass filter is perfectly centered, since it is capacitively coupled both in and out.

Only the LowPass stage V(pot) would matter much, and even there it wouldn't really matter if it sits at 2.4V instead of 2.5V.

 

[windozeuser]

FIne tuning it now, was wondering if I added a sample/hold circuit to hold the peak values a little longer that it would affect the frequency response of the circuit or not?

 

[MikeMl]

... wondering if I added a sample/hold circuit to hold the peak values a little longer that it would affect the frequency response of the circuit or not?

How do you know when to sample?

 

[windozeuser]

Well I have a fixed sample rate of 100hz Basically what I want is the output from the low pass filter to be held longer to make it easier on the arduino I wanted to eventually cut the lsample rate down because I'm sendig a lot of data over serial