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GSM
Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 135 threads matching "gsm"
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The most relevant threads are listed first
Need RTOS & SSH for ARM-based remote terminal
Sean_Q_ - 17:50 19-07-08
Processor is Atmel AT91SAM7XC256 connected by GSM modem. The client has
specified "encryption". I think it needs a formal RTOS and Secure Shell;
client says "get it working ASAP first and we'll add encryption later."
Any recommendations? btw the eCosPro SSH middleware seems to be server
only, ...
About GSM project
haresh - 10:43 12-07-08
My Last post many friends have problem abt my university. I join this
group for help. If i said any thing wrong then sorry.
Right I am working project which is using 8051 to connect GSM modem
And GPS receiver .Its for tracking vehicle and send MSG on my or any
mobile about vehicle location.
...GPS +8051+GSM modem
haresh - 05:33 11-07-08
Hello friends,
I am working on project which is Vehicle tracking system, which works
on the
following principle:
1. GPS system transmit the current longitude/latitude/GMT to MC
2. MC transmit this position information via a SMS to a mobile phone
through a GSM device
3. Crystal freequency...Tranmitting AT command to GSM from 8051
lopamudra - 23:33 06-07-08
Hello,
I am developing 8051 based vehicle tracking system and Need SOS help on
the following:
Assemblly language code for transmitting "SMS" through AT command from
8051 to GSM module.
thanks in Advance
Lopamudra
...8051 baud rate
lopamudra - 16:01 03-07-08
Hi all,
I am working on 8051 based Vehicle tracking system, which works on the
following principle:
1. GPS system transmit the current longitude/latitude/GMT to MC
2. MC transmit this position information via a SMS to a mobile phone
through a GSM device
3. Crystal freequency is 11.0592 MHz
...Re: Flash retention in uC at higher temps, experience?
TheM - 15:49 14-06-08
"Joerg" wrote in message news:i0S4k.1439$LG4.82@nlpi065.nbdc.sbc.com...
> Yeah but that would not be cool. 100W at 6ft isn't that much. Many applications must live in plastic boxes and there is always a
> chance someone with a 5W contractor radio stands right next to them. Or someone fires u...Synchronizing to a CDMA phone
Tim Wescott - 19:16 20-05-08
I'm working with a customer for a cell-phone network add-on application.
The application requires that we listen in on cell phones and gather
some data about their QOS at certain antennas. My immediate task is
trying to de-spread the signal from a cell phone so I can start doing
useful wor...Re: Large Wireless networks?
Paul Keinanen - 05:06 24-04-08
On Thu, 24 Apr 2008 00:53:45 -0400, CBFalconer
wrote:
> Polling 10k items in 15 minutes
> from a single point leaves an absolute max of 9000 / 10k ~= 1 sec
> per poll. That ignores any retransmissions needed.
You must have short seconds where you live, if you managed to get 9000
int...ARM board for smartphone
rampup - 11:30 13-04-08
I am looking to build a smartphone based on ARM+linux(android). Please
suggest some development board in the range of $300 which offer
peripherals used in a smartphone like touchscreen, WIFI, GSM modem with
EDGE, Bluetooth, etc.
...Re: Linux serial port dropping bytes
Ulf Samuelsson - 04:57 08-04-08
> >
> > > I agree. The worst part is that it seems that it is becoming more
> > > prevalent. The Philips LPC2000 series has got these horrible UARTs,
> > > which have been badly implemented as well. If one needs 8 uarts or
> > > more, then it seems that only '550 UARTs are available these d...Re: reading in data from rs232 port, require to resend as an email
Lyn - 03:45 04-04-08
On Apr 3, 9:16=A0pm, Grant Edwards wrote:
> On 2008-04-03, Robert Adsett wrote:
>
> > > > > > > I am reading in some temperature sensor data, via RS232 (actuall=
y
> > > > > > > converted to =A0USB via a CP2102 =A0), approx every hour into a =
Windows XP
> > > > > > > P...Re: SMS sender
Hugh - 07:22 03-04-08
Early Ericsson gsm handsets are easier to use as they are more "open" than
the Nokia proprietary interface and commands. Nokia was not strictly AT
command set compatible.
"ErikAkerfeldt" wrote in message
news:3c7e69cb-543e-4f06-b820-292b68f6086c@s19g2000prg.googlegroups.com...
> Hi,
>
...Help - Nokia 2260 LCD data? Is there a Nokia 2210? Euroguys' input?
larwe - 08:37 28-03-08
I'm making a few (cuneiform) sexagesimal desk clocks out of clay.
Hence I've been trying to find some cheap LCDs in old TDMA phones
(LCDs from Spark Fun etc. are $9 vs. entire phones from eBay ...Re: A Challenge for serialized processor design and implementation
Rafael Deliano - 06:04 19-03-08
> I have been think and part time working towards a goal to make useable
> and useful serialized processor.
The idea is not new, according to
Denyer, Renshaw "VLSI Signal Processing A Bit serial Approach"
Addison-Wesley 1985
there were machines back in the 50ies, 60ies ( Pilot ACE 1...Re: cheapest GSM module
Ranjhith - 05:58 11-02-08
On Feb 9, 1:45 am, "kiranar" wrote:
> i want a cheapest GSM modem( no GPRS or edge required). my requirement is
> only to send SMS. and i want it to be as simple and as cheap as possible.
If you are looking for a Computer+GSM kinda setup, go for an used GSM
phone having IR/USB/serial inte...Re: OEM Cellular Modems - Non-Internet - Models, Prices, Experiences ???
07:44 09-01-08
Hi B1ackwater,
I looked for a similar modem, and eventually settled for a GSM-based
module: TER-GX110 (see http://www.roundsolutions.com/uk_products.htm).
This device has an RS232 port, which is easily interfaced to a
microcontroller. It supports both GPRS (for "internet" connection),
and ...Re: how to use microcontroller codings to convert ecg signal to heart rate
karthikbalaguru - 04:14 19-12-07
On Dec 18, 9:56 pm, steve wrote:
> On Dec 17, 4:08 pm, "monte" wrote:
>
> > hi to all,
> > if any body could help me out in conversion of ECG signal to heart rate ,
> > to send it as a message to any mobile for medical usage , i am using gsm
> > modem for transmissiom.
> > a...Processor core license pirates
Anders - 16:37 14-12-07
I'm working on a design where I need a GSM radio module.
I've found a low cost Chinese module that would work, and tried
some samples of it - all looks from the technical side.
Now my customers raises concerns about using Chinese GSM modules.
They say some module makers - especially in China a...Re: Designing PXA270 board
Robert Lacoste - 12:45 04-12-07
Hi,
Basically the CM-X270 is a COM module, meaning that is is designed to be
plugged on a carrier board as a component through its 140-pin connectors,
providing the PXA270 CPU, RAM, up to 512MB of flash and all interfaces you
may think of (namely LCD, touchpanel, Ethernet, USB, serial, I2C,...Re: Tiny block ciphers for embedded systems
Uncle Noah - 12:45 13-11-07
On Nov 13, 3:05 pm, Chris Hills wrote:
> Http://www.phaedsys.demon.co.uk/chris/index.htm
>
> Look under the ciphers button on the top
Hi
thanks for the link. The A3A8 cipher is interesting and hadn't heard
of (part of GSM?).
What puzzles me are the modulo operations. Are these neces...GSM module + microcontroller, video through GPRS
Rakietka - 15:32 11-11-07
Hello,
I'd like to build a system, which main purpose is transmitting video from
video camera to mobile phone/PDA in real time. I'm wondering if it is
possible to get satisfactory quality and frame rate (160x120 and 15-24 fps
would be enough) with GPRS technology? I have read manual of Telit GM82...Strange GSM modem behaviour
Rav - 05:47 28-09-07
Hi,
I am using one Wavecom 2403A GSM modem interfaced to AVR AT90CAN128
microcontroller. Here, in the code i am sending AT command for sending
SMS to an arbitrary cellphone. I am using USART0 of the controller to
send the characters to my GSM modem. The AT command and the SMS text,
both are h...Re: Skype is down
larwe - 20:48 16-08-07
On Aug 16, 4:47 pm, Joerg
> > POTS is a dying technology, despite glitches in the alternatives.
>
> I disagree. It is the most reliable system, so far.
I didn't say anything whatsoever about reliability. I said POTS is a
dying system. In North America, the number of consumer copper line...GSM/GPRS connection from a balloon
Albert Goodwill - 00:52 13-08-07
Hello Everybody,
Expert advise required on GSM/GPRS connection;
I want to send/receive data to/from a balloon carrying some sensor.
Initially balloon will be tight to a rope and will rise gradually in
human control.
It will send altitude, temperature, humidity, windspeed, GPS data via
GSM/...GSM network time
Anze - 09:10 18-07-07
Hi all!
I have tried looking for the information on the Internet, but could find
nothing... I hope someone can help me out.
I am trying to build a system based on Siemens TC65. It is very important
for the application that runs on it to know the exact time (well, +- 1
minute) at all times ...Implementing Microblaze in Xilinx Virtex4 (ML401) ?
moraali - 08:40 18-07-07
Good morning
I have a project where I need to embed microcontroller in a Xilinx
ML401.This project consist a GSM which connect to a
microcontroller(ATMEGA8535) and the microcontroller is eventually
connected to Xilinx Virtex4 (ML401).It is actually road traffic light
implementation for Emerge...Re: Req: (Free) Embedded Platforms for Education
Dominic - 14:13 17-07-07
gouaich wrote:
> You all probably know that embedded systems are more and more
> considered as hot topics to be though at universities. I will be in
> charge of managing a complete course for graduate students on embedded
> system with a focus on software engineering and operating systems fo...chip to support rtp, ipsec?
21:39 16-07-07
Hi,
I am working on a device that needs to support voip and security. Need
to off-load some stuff from the main CPU. Any one knows a good chipset
can support rtp packitization and ipsec?
The rtp data (already in GSM EFR or AMR format) will be provided by
other part of this device.
Thanks...newbie question about embedded system project for satelliate communication
08:28 16-07-07
Hello,
I am starting a remote monitor project for my course.
The basic requirements are these:
1 around 100 remote monitor clients
2=2E clients send data (e.g. sensored data) to a server
3=2E the server can send admin data to clients (e.g. sensor intervial,
server url etc).
4=2E User interfac...Re: Low cost iP phone and ATA development
msg - 11:39 25-04-07
Uderman wrote:
> Hello. I am involved on a voip project that aims to deliver a complete
> voip solution using Asterisk software. We will develop the IP phones,
> ATAs, and a GUI for the users configure Asterisk. My tasks relate to
> the design and construction of the Ip phones and ATAs.
>...Re: Where to download GSM 03.40 and 04.11
EventHelix.com - 08:40 15-04-07
> where to download these specifications? googled but not found. thanks.
Visit the 3GPP website to download the GSM specifications. The URL is:
http://www.3gpp.org/
--
EventStudio 4.0 - http://www.EventHelix.com/EventStudio
Sequence Diagram Based Real-time and Embedded System Design Tool
...problem in modem interfacing with microcontroller
abhay - 05:00 09-04-07
hi,
i m interfacing GSM modem to my microcontroller.i need to send sms
through it.
i am using AT commands for that.the command to send sms (AT+ CMGS)
must
terminate with ctrl-Z.now in my program
AT , AT+CMGF = 1, AT+CMGS = mobile no. , "message to be sent " ctrl-
Z /
26 / ^Z
the pro...mc55 interface with microcontroller 8051
brvinodh_57 - 21:07 21-03-07
im having problems of interfacing the gsm module "mc55" with
microcontroller 8051
the gsm module works properly when i interface it with a pc via a rs232
but with microcontroller the gsm module gives "ERROR" reply for every
message sent from microcontroller
...Re: Atmel releasing FLASH AVR32 ?
Ulf Samuelsson - 17:54 21-03-07
> > Fixed by compiler pragma...
>
> Easy to say, a bit harder in reality. If you don't care about codesize you
> could
> align big functions to 512-byte boundaries and pack small functions in the
> gaps. But even that is hardly a solution as every minor change in the code
> results in ...Re: Splitting a serial (RS232) port signal?
Ulf Samuelsson - 08:15 13-03-07
"ElderUberGeek" skrev i meddelandet
news:1173493940.274968.249830@p10g2000cwp.googlegroups.com...
>
> I went to sleep and when I woke up.... what a response! Thanks guys.
> Well, I see I need to clarify a few things:
> 1) I can modify the application in the "master" box (i.e. the one wit...Re: Cost analysis for Embedded Linux?
AK - 15:28 11-03-07
Hi,
> Am working on a project that aims to device an Embedded System
> which has serial input and GPRS output.
>
> Like this
>
> Serial data ====> Embedded System (using GPRS modem) ===> UDP/TCP to
> internet cloud.
> (Input)
> (Processing) ...GSM/GPRS emdedde module
rmalerba@gmail.com - 13:57 09-03-07
Hi guys, anybody knows about module or chip with embedded GSM/GPRS
features, I knew Motorola G20/24 but is very expensive for me.
Thanks in advance !
Richard
...Recommendations for tiny GSM module?
17:40 25-02-07
Hello! I've been wanting to design a phone for a while -- and I'm
looking for recommendations for tiny quad-band GSM modules for
embedded projects. These things have started turning up for machine-to-
machine (telemetry) applications and the like over the past few years.
In particular, the Telit...Help on our final year project- please reply quickly
nasif4003@gmail.com - 21:49 19-02-07
Hi ,
We are developing a project under our university course. We
developed a web site & we want to deploy the updates of that websites
to our client.
To deploy updates we provide hand held embedded device to
clients. We assume that all our clients are within 1.5 km range.
Currently ...Re: Has anyone designed a board running embedded linux?
linnix - 15:08 04-02-07
On Feb 4, 6:57 am, Risto Sainio wrote:
> vorange wrote:
> > Be it ARM, XScale, PowerPC, MIPS or any other kinda chip?
>
> > How difficult is it to design a small prototype board that can boot an
> > off the shelf embedded linux distro? Its been something I've been
> > meaning to ...