Thanks all for the help. Somewhere, it wasn't the locusts apparently, someone used a RF transmitter. On thinking about it, I may just go with a Ming 2-button "car alarm" type transmitter with a PIC controller. Probably could use IR, though - anyone used this sort of thing for a 75 foot hop across a road? (I'd put the receiver under the garage roof, I figure that'll work if I go with IR; And the "Solar Racer" method would work to power the transmitter i.e. charge up a Cap bank from a solar cell, use that to send the IR pulse. Unless I just go with a battery, whatever <G>) What I want this for, if the mailbox door is opened or closed, or the mailbox flag is opened or closed, (interrupt on change) for a "ping" to be sent then, & then repeated once or twice at about 1 minute intervals, later. (The mailboxes are on the far side of the road here so the mail truck will likely be a good radio blockage!) We've had some apparent mail theft problems in the area, I want to catch the turkey(s) doing it; Also, it'd be NEAT to know when the mail arrives (I have to install a new mailbox anyways, with an inner slider that lets Robin get the mail at will, if it's in the back of the box - Might as well throw a PIC in there.) My paycheck & the associated paperwork all come in the mail, if I know the mail's here I might be able to fill my invoice out before the mailman gets around the 4-block loop I live in (We're at the start of the loop <G>) Mark Willis,
wrote: > > > built to identify a physical location to a wearable? > > see also http://wearcam.org/acm-mm96.htm > for the original paper in which the idea of > a "room tag" (binding location to wearcomp) > was first proposed and reduced to practice. > -- Subcription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
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