AVR-Chat

Wow!  what a response.  Actually my tolerances are quite large, + or -
 say 10 m/sec.  As for placement of the sensors I have no set length 
yet, I just threw 1" as an arbitrary number.  What distance would be 
best?  I do intend to condition the signal of the sensors before the 
uC.  As for accurate distance between them I was going to use a dial 
caliper.  Is that accurate enough, obviously the larger the distance 
apart the less important it becomes.  I think I will go with 10 
centimeters apart.

--- In AVR-Chat@yahoogroups.com, "upand_at_them" <upand_at_them@y...> 
wrote:
> Agreed.  But I was giving an example of the math to show that the 
AVR 
> is indeed fast enough to time.
> 
> 1400m/s, or about 3000 MPH, is still doable with even a slow 
> processor.
> 
> Mike
> 
> 
> --- In AVR-Chat@yahoogroups.com, Dave VanHorn <dvanhorn@c...> wrote:
> > At 05:34 AM 3/10/2004 +0000, upand_at_them wrote:
> > >Even a slow processor should be fast enough.  Let's look at the
> > >math...
> > >
> > >An object going 100 MPH will travel 1 inch in 0.568 ms.  
Assuming a
> > >slow 1 MIPS processor, you'd get 568 instructions (counts) in 
that
> > >time.
> > 
> > Bullets are typically fast, designing around 1400M/S at the high 
> end 
> > wouldn't hurt.
> > A 100 MPH bullet wouldn't be all that interesting.