Re: dash7 pictures

Paul Shackleton wrote:
> Could you use a Magneto-Inductive sensor (aka electronic compass) to derive
> direction of travel. If you know what direction you're travelling, and the
> speed, it should be possible to get an accurate track map. I've seen digital
> electronic compasses for as little as 30 quid; this includes a case, microchip
> and digital display, so the sensor itself must be quite cheap.

That's a bloody good idea, speed sensor plus direction would be everything
you needed to keep the accelerometers on track.  I would wonder how the
sensor would cope with a rapidly changing environment such as the car, or
indeed all the other electrics around it.  Sounds like a promising thing to
try though.
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