On 11 Jun 2001, at 0:05, Automatic digest processor wrote: > > Date: Sun, 10 Jun 2001 22:13:31 +0200 > From: =?iso-8859-1?Q?Anders_Mejl=E6nder_Jakhelln?= > Subject: Re: [EE]: A fool-proof bicycle alarm > MIME-Version: 1.0 > Content-Type: text/plain; charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > Tracking down a beacon in a city area can be difficult, but speaking = > about GPS... > > If you wire up a GPS, GSM module, a PIC and some software you will not = > have an alarm, but more like a very good tracking system. To locate your = > bike just send your secret kode to your bike as a SMS, and it will = > return the exact location of the bike within seconds. > > Of course this would be a dream device, because you will meet a lot of = > problems like charging, antennas, fitting it into the frame bla bla = > bla... > For a car, a device like this would be nice and not to expensive, but = > for a bike? > > Everything needed is available at resonable costs (anyone care to build = > one?) > I don't know how the cellphone systems work in the US, but you probably = > have something like the GSM system with the capability to send short = > text messages. > > Anders I have already done that for some clients here in Brasil. Just a GPS, an Atmel uP board and a CellPhone or a Radio to send the car position. But for a bike you'll have to manage some problems, like GPS power requirements and antennas mainly. Regards. --- Marcelo Puhl mark@catolico.com.br http://py3ss.cjb.net -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads