Ok.  Well you know the Star Trek communicator buttons....

Well I have a back burner project in prototype stage utilizing
the new transcievers from RFM.  These transceivers have a
theoretical maximum range of about 800 meters and are capable
of 115k rates using ASK.

A pic packets the data and controls the modules power and sleep
controls. Then when the user wants to send a message he taps the
button once for addr 1, twice for addr 2, etc.  The message is
detected by the correct individual, and if responded to in less
than two seconds, only one button press is required. If the
channel is occupied or hasn't been silent for 2 seconds, a single
tone is eminated as a channel unavailable indicator. This scheme
allows the active conversation without interruption or listening in.

The button press after protocol initialization could be replaced
with an audio detection threshold on the microphone circuitry.

Typical usage:

Host                            Remote

Tap Tap                 <It's for me (no.2 actually)>
ack sound                       addressed sound
"Number One!"           <"Number One!">
---                             Tap
<"Yes, Captain">                "Yes, Captain"
Tap                             ---
"Come to my quarters"   <"Come to my quarters">
---                             Tap
<"Why Captain, are      "Why Captain, are
you in the mood">               you in the mood"
2 second wait
Tap Tap Tap             <It's for me (Geordi)>
ack sound                       addressed sound
"LaForge, lock onto     <"LaForge, lock onto
Riker and beam him      Riker and beam him
to the sickbay"         to the sickbay">
---                             Tap
<"Captain?">            "Captain?"
Tap                             ---
"I think Riker's                <"I think Riker's
had a few too many      had a few too many
high colonics on                high colonics on
Rika 3"                 Rika 3">
---                             Tap
<"Rigghhhht..">         "Rigghhhht.."
                                2 second wait           Crusher
                        Tap Tap Tap Tap         <It's for me (Beverly)>
                                ack sound                       addressed sound
                                "Riker is on his                <"Riker is on hi
s
                                 way, he needs..                way, he needs..
                                 well.....'breaks'"     well.....">
                                 ---                          Tap
                               <"Not Again!!!">         "Not Again!!!"

<<<<<<<<<<<<<<<<<<<<<<<SNIP(perhaps literally)>>>>>>>>>>>>>>>>>>>>>>>>>

Sorry.. (;>

Do you think Paramount would hire me as an episode writer??

Craig

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dave VanHorn
> Sent: May 6, 1999 4:32 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: Re[2]: Weird, Wacky, Zany PIC applications
>
>
> > > I thought of a fun variation on this - a device with an IR LED that
> > > randomly changes TV channels every few minutes - again, stick it under
> > > a table or whatever in sight of the TV but not the viewer!
> >
> > Heheheh...how about the TV section of your less than favorite department
> store?
>
>
> Just build it into a remote case, so it looks like just another
> button-box.
>
> It would be a good idea also to have it play for a while, then go to sleep
> for a long while, maybe several hours.  Use a nice long PN
> generator to make
> a randomized sleep and play time interval.
>
>
> That way it makes finding the troublemaker VERY interesting.  Bonus points
> if you can get it on top of some display they haven't messed with
> in a year
> or so.
>
> You could also use the signals from the other remotes to tell you when the
> store is open, and when it's not.
>