Actually, the accelerometer-based  gizmo I built measured speed
conventionally (reed switch/magnet), and ACCEL by reading a LTC
1298 which monitored the ADLX02 (? - Long ago...).

The "equations" are snippets of code from the original Basic supervisor
pgm running on a TI-74 calculator, before it morphed into assembler.
It gave plausible results, on the flat, once the noise problems were
managed - I learned a bit about filters, software & hardware...

DECEL I interpolated from a table, constructed with another routine
which measured speed against time - Coasting. I intended to measure
grade with a 2nd accelerometer, but ultimately did'nt - Could'nt get anothe=
r
one - AD wanted 10K orders, not onesies :)  I was lucky to get one.
--=20
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