phone

Archiver

Hello list,

Problem:
I want a mobile (cell-) phone to dial a number (in telephone memory) if
a STAMP is giving the order.

Why:
Someone is stealing (or breaking into) my car and I want to prevent that.

Question:
Is there anybody out there who knows the protocol to control a mobile phone
and the connections?

Thanks,

Daan van Marum
dvm@b...
the Netherlands
Amsterdam

Archiver

yOn Mon, 23 Oct 2000, Daan van Marum wrote:

> Hello list,
>
> Problem:
> I want a mobile (cell-) phone to dial a number (in telephone memory) if
> a STAMP is giving the order.
>
> Why:
> Someone is stealing (or breaking into) my car and I want to prevent that.
>
> Question:
> Is there anybody out there who knows the protocol to control a mobile phone
> and the connections?

The easiest way is probably going to be getting an async rs-232 interface
(the motorola analog phones have specialized boxes that do this ; newer
PCS devices have direct cable connections.). At this point the stamp just
ends up generating 9600 baud AT commands.


Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
email: lamont@a... WWW: http://www.serv.net
"...There's no moral, it's just a lot of stuff that happens". - H. Simpson

Archiver

Dan,

I have looked into this idea myself, I think it's a
great one. Motorola makes a encoder/decoder chip, I
think they focus on it in the September issue of Nuts
and Volts, this will interface with the Stamp.
However, I am not sure it is the most efficient way to
do so. The idea I would like to utilize is once you
have dialed up the stamp you could use a fuel cut-off
switch to progressively slow the car down and/or turn
it off. I have even more ideas with this, however,
one thing at a time. Your welcome to contact me if I
can assist you further or if you would like to share
your thoughts on the development of this.

Hope this has helped,

Todd

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Archiver

I did just this a couple of years ago. I was responsible for instrumenting
a research site that was located 30 + miles from my office. In brief, I had
a datalogger monitoring flow and various other parameters in a drainage
tile. When a rainfall event caused the tile to start flowing, the data
logger kicked on a water sampler and also went to a subroutine which
powered up a cellular phone, paused several seconds to allow for a
connection, then activated a speed dial button which dialed the number of
my pager. It worked very well, the toughest part was opening the phone and
locating suitable points to solder jumper wires to. I just located each set
of traces which were completed by the buttons, attached wires and ran to
the outside of the phone where they were terminated with relays.

It worked very reliably, it was truly an awesome thing, when a thunderstorm
would pass over my apartment, head towards my research site, and twenty
minutes later, my pager would go off.

This was useful so i would then know what time to arrive at my research
site to collect the samples.

Even managed to have the concept published

Inexpensive automated paging system for use at remote research sites

Soil Science Society of America Journal, June-July, 1998, Vol. 62 No. 3,
pp. 600-601

good luck, hope this makes sense, I'm needing some sleep badly,

Steve

Archiver

Hi!
do u have any link that i could see this? I can't find it on the internet...
Thanx! Takis

sargent@s... wrote:

> I did just this a couple of years ago. I was responsible for instrumenting
> a research site that was located 30 + miles from my office. In brief, I had
> a datalogger monitoring flow and various other parameters in a drainage
> tile. When a rainfall event caused the tile to start flowing, the data
> logger kicked on a water sampler and also went to a subroutine which
> powered up a cellular phone, paused several seconds to allow for a
> connection, then activated a speed dial button which dialed the number of
> my pager. It worked very well, the toughest part was opening the phone and
> locating suitable points to solder jumper wires to. I just located each set
> of traces which were completed by the buttons, attached wires and ran to
> the outside of the phone where they were terminated with relays.
>
> It worked very reliably, it was truly an awesome thing, when a thunderstorm
> would pass over my apartment, head towards my research site, and twenty
> minutes later, my pager would go off.
>
> This was useful so i would then know what time to arrive at my research
> site to collect the samples.
>
> Even managed to have the concept published
>
> Inexpensive automated paging system for use at remote research sites
>
> Soil Science Society of America Journal, June-July, 1998, Vol. 62 No. 3,
> pp. 600-601
>
> good luck, hope this makes sense, I'm needing some sleep badly,
>
> Steve

Archiver

I've attached it here. It's in a word perfect document. not in the best of
shape, but should do.

Steve





At 10:00 PM 10/23/2000 -0700, you wrote:
>Hi!
>do u have any link that i could see this? I can't find it on the internet...
>Thanx! Takis
>
>sargent@s... wrote:
>
>> I did just this a couple of years ago. I was responsible for instrumenting
>> a research site that was located 30 + miles from my office. In brief, I had
>> a datalogger monitoring flow and various other parameters in a drainage
>> tile. When a rainfall event caused the tile to start flowing, the data
>> logger kicked on a water sampler and also went to a subroutine which
>> powered up a cellular phone, paused several seconds to allow for a
>> connection, then activated a speed dial button which dialed the number of
>> my pager. It worked very well, the toughest part was opening the phone and
>> locating suitable points to solder jumper wires to. I just located each set
>> of traces which were completed by the buttons, attached wires and ran to
>> the outside of the phone where they were terminated with relays.
>>
>> It worked very reliably, it was truly an awesome thing, when a thunderstorm
>> would pass over my apartment, head towards my research site, and twenty
>> minutes later, my pager would go off.
>>
>> This was useful so i would then know what time to arrive at my research
>> site to collect the samples.
>>
>> Even managed to have the concept published
>>
>> Inexpensive automated paging system for use at remote research sites
>>
>> Soil Science Society of America Journal, June-July, 1998, Vol. 62 No. 3,
>> pp. 600-601
>>
>> good luck, hope this makes sense, I'm needing some sleep badly,
>>
>> Steve
>
>
>
>