Hurra Richard! Wofson WM8753 ; ) doing distance messuring with ultrasonic?
rodolphe.ortalo at free.fr
Tue Dec 12 21:36:53 CET 2006
Argh. Non-human thieves... How do you say "Resistance futile." in bear
Anyway, the distance measurement idea would probably make a very popular
software gadget IMO.
Le mardi 12 décembre 2006 à 15:13 -0500, Richard Franks a écrit :
> On 12/12/06, Robert Michel <openmoko at robertmichel.de> wrote:
> > Doing distance messuring with ultrasonic?
> > ;))
> > 40kHz example:
> > http://www.parallax.com/dl/docs/prod/audiovis/Distance28015.pdf
> Interesting article... 3.3m ping is not insignificant, especially in
> dark/smoke-filled environments. I remember doing something similar
> with LegOS (using the infrared port) with the original LEGO
> I wonder if you could also defend against bears or dogs by playing
> with these frequencies.. mind you, 6m away from a grizzly, that UI
> better be clean and fast. No pressure ;-)
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