Here are some AD links pertaining to the chip I am using with EMON.

http://www.radiosky.com/a2dmax.html  Circuit I am using with EMON.  =
RadioSky sells the chip for $18.

http://www.radiosky.com/dcla2d.html  Simple one channel 12 bit with $15 =
chip.

http://dbserv.maxim-ic.com/ADCDACRef.cfm  Maxim reference material.

I currently have my seismometer at the local high school in a 9th grade =
classroom.  This is the second year I have moved it up there for a 3 -4 =
week period.  It is in a very bouncy second floor location but last year =
we picked up the Seattle quake.  The kids get good experience but a =
Lehman is not ideal for masses of untrained fingers.  Think durability =
in your efforts. =20

Randy







Here are some AD links pertaining to =
the chip I am=20
using with EMON.
 
http://www.radiosky.com/a2dm=
ax.html =20
Circuit I am using with EMON.  RadioSky sells the chip for=20
$18.
 
http://www.radiosky.com/dcla=
2d.html =20
Simple one channel 12 bit with $15 chip.
 
http://dbserv.maxim-ic.=
com/ADCDACRef.cfm =20
Maxim reference material.
 
I currently have my seismometer at the =
local high=20
school in a 9th grade classroom.  This is the second year I have =
moved it=20
up there for a 3 -4 week period.  It is in a very bouncy second =
floor=20
location but last year we picked up the Seattle quake.  The =
kids get=20
good experience but a Lehman is not ideal for masses of untrained=20
fingers.  Think durability in your efforts.  
 
Randy