AVR-Chat

I was thinking about building/selling a programmer calc with an AVR,  keypad, 
lcd and open source sw that we could collaborate on. With projects like  
this, the cost is sensitive to whether you build 10, 100 1000 or ?? Maybe I  could 
sell them at think geek. Maybe give it a clear case so you could se the  guts 
or some 'gimmick' Now everyone needs to suggest their 'threshold of impulse  
purchase' for something like this....
 
 
In a message dated 5/16/2008 12:11:22 A.M. Eastern Daylight Time,  
obparham@jpl.nasa.gov writes:

--- In  AVR-Chat@yahoogroups.com, davec <davec2468@...> wrote:
>
>  >I have a solar powered Casio at home that I got 20+ years ago. I
>  >don't recall the model # but it handles BIN, OCT, DEC and HEX
>  >4-function ops and basic logic functions on up to 32-bit values.
>  >
> >It paid for it's self a long time ago and the batteries still  work!
> >
> >Bruce
> 
> Please look at it and  report the model #. I'm interested. You're sure 
> it does *binary* to  32 bits? And displays it? (Most new calculators 
> won't display more  than 16 digits, so I'm suspicious...)
> 
> Thanks,
>  Dave
>

Ok, I got home and tracked it down. It's a Casio model  CM-100 that I 
got for free, in 1986, as a promo for buying a graphing  calculator. 
I stuck it into the scanner and posted the resulting  pic  in the photo
section of the Yahoo web site.

The COMP button puts the  unit into normal floating point mode and any
of the BIN - HEX buttons  switches it to integer operation. And yes,
the A-F keys expand the numeric  pad to 16 digits in integer mode. I'm
sure this model has been out of  production for a long time but, if you
can find a working one, it's worth  it. Not a high power unit but, like
I said, the batteries still  work!

Bruce


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