My fathers uncle worked for a vending machine company. He told me about all the
problems in development.  They tried the weight thing back in the 50's  when
the workers in the factories figured it out, they stuck funnels with hose on
them in in place of the cups and would empty the machines for a nickel.  AH the
ingenuity of factory worker with time on their hands.

Peter van Hoof wrote:

> you are better off trying this with some other sensor, imagine what happens
> when people dont leave their cup stand there / when the cup tips over.
>
> a reservoir in the machiene with level sensing or a timed dispence would
> work a lot safer/better
>
> Peter
>
> ----------
> From:   William Luther Davis
> Sent:   Friday, December 12, 1997 12:47 PM
> To:     PICLIST@MITVMA.MIT.EDU
> Subject:        [OT] Weight Sensors
>
> <<File: ATT00000.htm>>
> I currently am working on a smart fountain machine, and have decided to go
> with some type of weight sensor to measure the amount of liquid in my cups.
>  Can anyone recommend or steer me to some weight sensors which can weigh
> liquids in the 0-32 oz. range?  Any feedback would be greatly appreciated.
>
> Thanks,
> William Davis
>
> P.S. This project does incorporate a PIC.
>
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