Hi all,

I would like to make a speedometer for a vehicle but would like to make
one that needs no calibration (per say).

As the vehicle will not be travelling for long times, I am thinking of
using one of the ADXL digital accellerometers and try to calculate the
speed from the acceleration obtained.

Is this achievable and if so, does anyone have an idea or links to the
math involved.

best regards

Tony

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