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Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 149 threads matching "gsm"
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The most relevant threads are listed first
Re: How to Interface microcontroller with Mobile using USB
bigbrownbeastie - 2009-10-29 08:11:00
On Oct 28, 11:01=A0am, "rememberramu" wrote:
> I am doing a project where I need an interface between mobile phone and
> microcontroller. Actually I need to process text message on
> microcontroller. The mobile phone has USB output, and I found that
> PIC18F4550 has USB input, but both of...
GSM module prices in bulk
shekhar77 - 2009-08-17 14:29:00
We are searching for best price for GSM module component in quantities of
1000, 10000 and 100000
Can anyone suggest the sourcing contacts who can give us the best possible
price.
We are looking for GSM only functionality , for example SIM301S from
SIMCOM.
Please suggest us any other vendor also w...Re: Do I need to write my own host side USB driver for a CDC device?
Nobody - 2009-07-30 12:06:00
On Tue, 28 Jul 2009 19:31:36 +0100, Nobody wrote:
> > I am having trouble finding out whether I need to write my own device
> > driver for the various windows/linux/mac platforms that the device I am
> > developing may be connected to, or whether the functionality is provided
> > by the st...Re: Discrete GPRS
Paul Keinanen - 2009-07-13 14:01:00
On Mon, 13 Jul 2009 09:45:04 -0700 (PDT), larwe
wrote:
>
> Debugging these designs at the software level isn't sufficient, you
> need considerable RF equipment and man-hours. Just a spectrum analyzer
> and signal generator covering the right frequency range and with the
> features you ne...Re: Discrete GPRS
Joe G (Home) - 2009-06-19 10:59:00
wrote in message
news:cba2f553-0d40-4528-b5b7-d3a95810043d@l28g2000vba.googlegroups.com...
> Hi guys !, Is possible build a GPRS/SMS transceiver ? without
> integrate modules like Telit, Siemenes, Motorola, etc, etc
>
> Thanks in advance.
Yes,
You will need to
1.choose GSM/GP...SMS-GPS Tracking
bunnyboxy - 2009-06-08 15:27:00
Hi!
I'm currently developing an application to for online tracking by SMS.
Normally, I should have tested the application with my GSM modem but I seem
to be having a problem with my GSM modem, so I will like to similar SMS
messages on my PC and send them to the serial port of my Pc they by
elimin...Re: b - Mobile phone project
2009-06-05 10:04:00
On Jun 4, 6:12=A0pm, "strangepl" wrote:
> We plan to sell the phone online for a reasonable cost not anywhere near
> Blackberry Storm or iPhone money. We do not want to sell phones with
> contracts that tie you in for 18 months, we want a true open source
> approach to develop a communi...Re: Remote access from Internet
2009-03-24 08:25:00
On Mar 24, 7:36=A0am, Tarmo Kuuse wrote:
> Unfortunately neither the app or ATHTTPd are mature security-wise. It'll
> be like dropping a shrink-wrapped steak in jungle and hoping it won't
> get eaten.
LOL, I love it :)
> IMHO the safest method would be a VPN between site and client...GSM cell phone with RS232 data interface ??
2009-03-04 10:41:00
Does anyone know of a modern GSM phone which still has an RS232
data cable available for it ? (Most have gone to USB .. I want to send
SMS
messages from my embedded device which only has a RS232 port)
Thanks,
Stuart
...Re: Engineering on the fly
rickman - 2008-12-23 12:23:00
On Dec 23, 7:48 am, IanM wrote:
> rickman wrote:
> > On Dec 23, 12:54 am, Anton Erasmus wrote:
> > > On Mon, 22 Dec 2008 15:02:10 -0800 (PST), rickman
> > > wrote:
>
> > > > I am spending more time out of the office these days and I often am
> > > > looking for Internet a...Re: Beginner questions: driving an LCD display [ Pandora, LPC2148, LPC2478, Openmoko ]
=?windows-1252?Q?Glenn_M=F8ller-Holst?= - 2008-12-13 05:20:00
David Gausebeck wrote:
> I have a project where I'd like to display video on a fairly high-
> resolution LCD display -- 320x240 or better.
...
> I've done a lot of programming, but I'm new to embedded systems, so
> I'm trying to figure out where to start.
>
> I expect I'll need a contr...Re: make phone calls from fpga. is it possible?
Karl - 2008-11-30 19:56:00
On 30 Nov, 15:36, "tim....." wrote:
> "Karl" wrote in message
>
> news:f8493c3f-0629-472a-8ff4-1e7551887a7b@f20g2000yqg.googlegroups.com...
>
> > Hi,
> > Is it possible to build a unit on fpga where alerting pre-recorded
> > messages: sms, voice messages can be sent =A0using p...Re: Opamp noise
Joerg - 2008-11-30 11:58:00
comp.arch.embedded.piclist wrote:
> On Nov 29, 7:50 pm, Joerg
> wrote:
> > comp.arch.embedded.piclist wrote:
> > > On Nov 29, 7:00 pm, Joerg
> > > wrote:
> > > > comp.arch.embedded.piclist wrote:
> > > > > On Nov 29, 3:10 pm, Joerg
> > > > > wrote:
> > > > > > comp.arch.em...Re: Which development board and LCD?
=?windows-1252?Q?Glenn_M=F8ller-Holst?= - 2008-09-22 14:01:00
abcd12 wrote:
> Hi!
>
> I am building a simple monitoring system, that would read data from few
> sensors and display them on a colour 320x240 LCD. As far as the
> microcontroller goes, I'll probably go with ARM9 or ARM7. Do you have any
> suggestions about the development board and LCD...Semiconductor/Hardware Career Opportinity in Telecom Giant (top 5) -Santa Clara
JackChang - 2008-08-28 11:31:00
Hi,
Our client, a top 5 telecom giant, have following openings in Santa
Clara office. Please send your resume to jackchang@jobirn.com if you
are interest, please include the position title.
Email: jackchang@jobirn.com
==============================
Position List:
1. Senior/Principal A...Need RTOS & SSH for ARM-based remote terminal
Sean_Q_ - 2008-07-19 17:50:00
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 - 2008-07-12 10:43:00
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 - 2008-07-11 05:33:00
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 - 2008-07-06 23:33:00
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 - 2008-07-03 16:01:00
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 - 2008-06-14 15:49:00
"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 - 2008-05-20 19:16:00
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 - 2008-04-24 05:06:00
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 - 2008-04-13 11:30:00
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 - 2008-04-08 04:57:00
> >
> > > 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 - 2008-04-04 03:45:00
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 - 2008-04-03 07:22:00
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 - 2008-03-28 08:37:00
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 - 2008-03-19 06:04:00
> 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 - 2008-02-11 05:58:00
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 ???
2008-01-09 07:44:00
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 - 2007-12-19 04:14:00
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 - 2007-12-14 16:37:00
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 - 2007-12-04 12:45:00
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 - 2007-11-13 12:45:00
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 - 2007-11-11 15:32:00
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 - 2007-09-28 05:47:00
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 - 2007-08-16 20:48:00
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 - 2007-08-13 00:52:00
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 - 2007-07-18 09:10:00
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 ...