Re: sensor choice for "gong detect"? & invisible light switches

[Crash Gordon® <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

http://www.tomtorrens.com  go to the bells page.




"Frank Olson" <feolson@xxxxxxxxxx> wrote in message =
news:qVdxe.1845071$Xk.658307@xxxxxxxxxxx
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| "Tracker" <trackgoogle@xxxxxxxxxxxx> wrote in message=20
| news:1120071862.118462.254210@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > Hello, all.  Long time no read etc.
| >
| > Anybody ever *actually done* a sensor on a heavy bell?  (It's a
| > large-size "Mission Bell" by Tom Torrens, if you care...  To be used =
as
| > a doorbell, well, actually as a button replacement for a DSC door =
box.)
| > Specifically triggered by the resonating from the gong itself, no
| > stuff like mallet switchhooks or motion sensor on the swinging =
mount...
| > I thought about an old-style glass break, but getting the frequency
| > right would be a trick.
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| Take a couple of pictures of the bell itself and post it to a web page =
we=20
| can all reference.  It would be far easier to suggest a solution if we =
could=20
| have a look at what you are dealing with here.
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| >
| > Also does anybody know if commercially cheap density sensors can be
| > used to determine if a finger is placed on the other side of =
sheetrock?
| > I'm gonna go do some experiments, so don't shoot me for asking =
first.
| > But if someone has *already* done it, please let me know.  Why did =
this
| > come up?  Well, I was looking at a Leviton "Acenti" ad the other =
day,
| > and thought, "Why on earth does anybody want a larger, more =
prominent
| > light switch?!"  Remember the Pass&Seymour/Legrand ones?  Ugly. as.
| > sin.  Anyway, shouting "lights" at some comput er is silly, and =
motion
| > sensors don't have the positive control (or on-location dimming)
| > needed.  Again, don't flame me about greasy spots on the wall, or
| > repairability of buried switches -- just, *if* you've done it, =
pretty
| > please tell me what you learned.
| >
| > Thanks in advance!
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| I've seen some pretty sophisticated looking touch control dimmer =
switches at=20
| Home Depot the other day.  I'd stick with a solution that wouldn't =
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| anything to "esoteric" if I were you (both from service and "end-user" =

| standpoints)=20
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