Alt-BEAM Archive
Message #06823
To: beam@sgiblab.sgi.com
From: SG Sparkyg@seark.net
Date: Mon, 18 Oct 1999 14:42:42 -0400
Subject: [alt-beam] Re: Electronic compass
the circuits encyclopedia vol 6
had 2 or three schematics to choose from in an electronic compass
-Sparky
At 08:01 PM 10/16/99 -0700, you wrote:
>well, I saw one design on some guys page (part of the Electrical
>engineering webring, i think) that used a cheap compass whose N side of
>the needle was shiny. Thy the had a a series of emitter/detector pairs (10
>or 12 I think) arrayed in such a way as to "see" the pin.
>
>not very accurate, but it beats 80 bucks.
>
>-Clarence
>
>
>
>
Home