Yes - that's why ghetto-rigged is not a good idea. To do it proper, you need to buy flex/reflex chips (motorola over-the-air paging protocol), and design your own circuit boards/etc. Not cheap. I haven't seen 'pager as a module' for flex/reflex, but i did see POCSAG modules (which interface to serial port). POCSAG is older-style broadcast paging protocol, and you may have troubles finding service provider.
Just search for pocsag and you'll find lots of hardware and software to work with it. (hamcom is the standard hardware interface). On Thu, 13 Nov 2003, Jacob Farkas wrote: > 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/ > -- NYCwireless - http://www.nycwireless.net/ Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ Archives: http://lists.nycwireless.net/pipermail/nycwireless/
