First night''s hamster data is in ...
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Hamster data is loaded into files section--called "HamsterData ..."
Michael
--- In basicstamps@yahoogroups.com, "webbm03" <webbm@c...> wrote:
> Since there've been a few people interested in the "hamster"
> experiment, I thought I'd post a brief note.
>
> The stamp setup worked well. I decided not to use COUNT, but instead I
> wrote a simple "state loop" that counts clock cycles (in effect) while
> waiting for the reed switch to close and bring the input pin low. I
> found that I got some bounce in the reed switch, but this was overcome
> with a simple bypass capacitor across the reed swtich. The stamp setup
> counts revolutions accurately and stably. I had to calibrate the cycle
> counter, but this was simple: I simply ran the wheel by hand for a few
> minutes and then multiplied the total number of clock cycles by a
> conversion factor to get real time. The clock cycles ended up being
> very close to 4 miliseconds, so even when the hamster was running his
> fastest, I was getting a count of at least 120 per revolution. I can
> post the code if anybody wants to see it.
>
> "Smokey" (my daughter's hamster) was busy last night! He started
> around 2130, and went to sleep this morning just after 0800. He ran a
> total of 20580 meters--I was surprised; that's over 12 miles! He
> averaged 0.9 m/s, and ran essentially all night. He took a couple of
> relatively long rest intervals (11 and 37 minutes), but other than
> that 1/2 of his rests were less than 30 seconds, and 90 percent were
> less than 2 minutes.
>
> I have a PPT with some data in it. If anybody's interested, e-mail me
> at webbm@c..., and I'll send it to you.
Michael
--- In basicstamps@yahoogroups.com, "webbm03" <webbm@c...> wrote:
> Since there've been a few people interested in the "hamster"
> experiment, I thought I'd post a brief note.
>
> The stamp setup worked well. I decided not to use COUNT, but instead I
> wrote a simple "state loop" that counts clock cycles (in effect) while
> waiting for the reed switch to close and bring the input pin low. I
> found that I got some bounce in the reed switch, but this was overcome
> with a simple bypass capacitor across the reed swtich. The stamp setup
> counts revolutions accurately and stably. I had to calibrate the cycle
> counter, but this was simple: I simply ran the wheel by hand for a few
> minutes and then multiplied the total number of clock cycles by a
> conversion factor to get real time. The clock cycles ended up being
> very close to 4 miliseconds, so even when the hamster was running his
> fastest, I was getting a count of at least 120 per revolution. I can
> post the code if anybody wants to see it.
>
> "Smokey" (my daughter's hamster) was busy last night! He started
> around 2130, and went to sleep this morning just after 0800. He ran a
> total of 20580 meters--I was surprised; that's over 12 miles! He
> averaged 0.9 m/s, and ran essentially all night. He took a couple of
> relatively long rest intervals (11 and 37 minutes), but other than
> that 1/2 of his rests were less than 30 seconds, and 90 percent were
> less than 2 minutes.
>
> I have a PPT with some data in it. If anybody's interested, e-mail me
> at webbm@c..., and I'll send it to you.