[sdiy] magno-sniffer

[harrybissell]

ahh dyslexia.

I looked and said (to myself)

what would Toby be posting about a MANGO-sniffer for ???     ;^P

H^) harry

"Paddock, Toby" wrote:

> Since we were talking about working with magnets, I thought I'd post about a
> simple field sniffer I made. Makes it easy to check what's N and S and some
> rough field mapping.
>
> http://www.seanet.com/~tpaddock/public/magsniff.jpg
>
> Allegro free sample linear hall sensor, CMOS 555, battery, switch, 5V reg,
> radio shack piezo transducer, some R's and C's, hot glue, and tongue
> depressor. Sensor output goes to 555 pin 5 to change pitch.
>
> Toby Paddock