Steve,=20
I've got a prototype of a stamp seisograph designed.  I'm using a 24 =
ADC, a programmable gain amp and the stamp to send rs-232 data to my PC. =
 The coil is a 30,000 turn 42 guage coil - it is very sensitive.  Just =
rotating it in free space gives quite a bump due to interaction with the =
earths magnetic feild.  With a cheap pacemaker type donut magnet - I can =
get an inflection at 8 ft away...  I've got the layout done for a board, =
but have been too busy to do the final review of it before sending it to =
the board house.  I should be able to do this sometime in March.

Jim Esler
  ----- Original Message -----=20
  From: Steve Hammond=20
  To: psn-l@.................
  Sent: Tuesday, February 06, 2001 4:43 PM
  Subject: BasicStamp question


  Has anybody incorporated a BasicStamp micro in the construction of =
their seismograph, tools, amplifiers, or A/D?=20
  Regards, Steve Hammond -- PSN Aptos, California=20







Steve, 
I've got a prototype of a stamp seisograph =
designed.  I'm=20
using a 24 ADC, a programmable gain amp and the stamp to send rs-232 =
data to my=20
PC.  The coil is a 30,000 turn 42 guage coil - it is very =
sensitive. =20
Just rotating it in free space gives quite a bump due to interaction =
with the=20
earths magnetic feild.  With a cheap pacemaker type donut magnet - =
I can=20
get an inflection at 8 ft away...  I've got the layout done for a =
board,=20
but have been too busy to do the final review of it before sending it to =
the=20
board house.  I should be able to do this sometime in =
March.
 
Jim Esler

  
----- Original Message ----- 
  From:=20
  Steve=20
  Hammond 
  
To: psn-l@.............. 
  
Sent: Tuesday, February 06, =
2001 4:43=20
  PM
  
Subject: BasicStamp =
question
  


  
Has =
anybody incorporated=20
  a BasicStamp micro in the construction of their seismograph, =
tools,=20
  amplifiers, or A/D? 
  
Regards, Steve =
Hammond --=20
  PSN Aptos,=20
California