The 5kg load cells costs me about US$60 and I don't thing the spring/motion
sensor
could have the same precision as load cells, but if you don't need
precision,
it's just ok, but then you have mor mechanics to deal with.

Regards,

Octavio
P.S. if anyone interested in buing load cells in large quantity, send me
private e-mail
======================================================
Octavio Nogueira  - e-mail:   nogueira@mandic.com.br
http://www.geocities.com/~oct_nogueira
"ProPic" Production PIC Programmer Windows under US$20
======================================================
 ----
De: Glenn Johansson <glenn@WRITEME.COM>
Para: PICLIST@MITVMA.MIT.EDU
Data: Segunda-feira, Agosto 25, 1997 11:07
Assunto: Re: PIC Scale -

>>I'm working a lot with scales using PIC's. The best way, and the only
way
>>I'm working, is with strain-gauge load cells. You have to pay special
>>atention on the amplification, or use no amplification at all if you use
>>some special A/D.
>
>How much do those cells cost? What about springs and some simple motion
control
> sensor?
>
>Regards,
>Glenn
>