Does anyone have any inforamtion on how a digital compass in the car works. I'm working on a project that I need to know direction. I was thinking of checking out a junkyard for a rearview mirror or overhead console that has a digital compass in it. How does the car interface to one of these?
Digital car Compass hack
Jul 14, 2005
3 Replies
Heyme wrote in news:Xns9692BFEFC85BFheymehotmailcom@216.221.81.119:
Google:fluxgate compass or
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Probably an inexpensive fluxgate magnetometer. There's a good article about small project magnetic sensing at
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. Google for fluxgate compass for specific info.
Rich Webb Norfolk, VA
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are the folks that make them. They sell (sold) a PCB for about $200 that gave you the 3 axis of the magnetic field and tilt.
The product contains software for correction for nearby magnetic objects.
A while back Radio Shack had a 2 axis flux gate for about $20.
Digikey carries GMR sensors that could be used to make a fairly basic compass.
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kensmith@rahul.net forging knowledge
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