Quote:
Originally Posted by billbo911
I also plan on building a dual axis accelerometer data logger. I'm curious to compare car driving styles between people based on how smoothly they drive. I want to use logged acceleration data as the criteria for "smoothness".
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Bill,
It's interesting you mention this. I just prototyped an accelerometer logger for someone that used it on a dirt track racing car. For reference, I used an Arduino Micro, kit of parts dual axis accelerometer (2.5g - I think it's spec'ed at 2g), SDLogger from SeeedStudio and a small (160 x 128) TFT for information display. I was storing data once every 10 msec (30 sample averages). It made for some interesting data. The SDLogger was used because it was easy to communicate with it over a serial port at 115k baud and I didn't have the time to get the SPI SD code operating. My only recommendation for a street car, would be to use an accelerometer with a smaller range - around 1g or less for better resolution and you could certainly slow the sampling down.
Mike