Sounds like a neat idea. Here is a practical question to ponder.
What if someone dials the number by accident, or you get a pager or cell phone with a recycled number, etc. your device may reset itself more than you would bargain for. Just a thought, Jacob On 11/13/03 3:34 AM, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > If you don't mind a ghetto jury-rig, it can be done for about $5 with a > few parts > bought at Radio Shack and you don't have to open up your radio receiver. > > Here's an example of how to rig your pager or phone to reset your PC: > Buy a phototransistor from radio shack ($1.50) and some black electrical > tape ($1.50?) > > 1) disconnect the wires from the "reset" button on the PC, and solder it > to the phototransistor. > 2) tape the phototransistor so the detector faces the pager or mobile > phone LCD. Tape it up > real well so that no stray light leaks through. > > Activating your pager or cellphone (via incoming call or txt msg) will > trigger the backlight on > the LCD which will, in turn, cause the phototransistor to pass current. > > With a few more parts (surge protected power strip, relay, perfboard, > project box?) > you could apply the same concept to temporarily interrupt power to your > devices. > > Haudy Kazemi wrote: > >> Try searching for 'watchdog timers' or 'dead man switches' that can >> automatically reset a PC or access point if it stops responding. There are >> some pre-built devices that can do this, or you could build your own. I'm >> trying to come up with the latter... >> >> At 12:32 AM 11/13/2003 -0500, Anthony Townsend wrote: >> >> >>> I'm looking for any references/info on projects or products that employ >>> the paging network for remote control of unattended devices. >>> >>> I'm interested in building a simple switch to power cycle remote >>> wireless nodes. There is a product on the market for $375 >>> [http://www.nighthawksystems.com/nighthawk_nh2.asp] but it also seems >>> like one could build such a device rather easily with a pager, a relay, >>> and some minor soldering by hooking up the vibrate motor to the relay >>> input. >>> >>> This got me thinking, though that there might be a lot of cool things >>> that can be done remotely with pagers & unattended devices. Google is >>> not producing much, but maybe I'm not using the right terms. >>> >>> Please reply off-list, I'll compile and post anything I find. >>> >>> thanks in advance >>> >>> -- >>> NYCwireless - http://www.nycwireless.net/ >>> Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ >>> Archives: http://lists.nycwireless.net/pipermail/nycwireless/ >>> >>> >>> >>> >> >> "If you're reading this, read it again." >> -- >> NYCwireless - http://www.nycwireless.net/ >> Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ >> Archives: http://lists.nycwireless.net/pipermail/nycwireless/ >> >> >> > > -- > NYCwireless - http://www.nycwireless.net/ > Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ > Archives: http://lists.nycwireless.net/pipermail/nycwireless/ > -- NYCwireless - http://www.nycwireless.net/ Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ Archives: http://lists.nycwireless.net/pipermail/nycwireless/
