GSM stands for Groupe Spécial Mobile. It is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks used by mobile phones.
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Embedded project using Mux and Demux for antenna
In our current embedded project we are implementing a GPS ,GSM and Wifi Module. To connect these modules to external antenna board,separate SMA cables are used.As our design requires each of the ...
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1answer
249 views
Receiving SMS using GSM and controlling LED using Arduino
Has someone come up with a solution with the above stated problem?
We are using Arduino Duemilanove and SIM 900 GSM module ...
2
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1answer
61 views
Embedded board level functional test at factory
My embedded project has a GSM and a GPS module. What is the best way to test the radios of these modules after the production of CCA like in a factory conditions.I was thinking of signal generators ...
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1answer
231 views
arduino-sim300 gsm communication
I am establishing a serial connection between the arduino uno and the sim300 gsm module.One way of doing is removing the max232 circuit and soldering tx rx wires from there onto the arduino board. A ...
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1answer
135 views
Using Arduino Uno to Log GSM Air Interface Messages
Is it possible to log the GSM Air interface messages that are sent between a GSM Module and the GSM/WCMDA network using an Arduino Uno?
Basically, I want to log/record all the GSM messages of the Air ...
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1answer
222 views
How many functions can I put into an arduino uno? [closed]
Is it realistic to put the following: GPS module, GSM module, SD card slot and about 4 analog sensors into Arduino uno? (have not yet goten an Arduino in my hands).
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76 views
Read Bricon speedy trap data
I am having a bricon speedy trap timing sensor for my pigeon loft to get their comming time from the contests. The system has a trap sensor and the pigeon has another tiny sensor bound to the foot. ...
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1answer
97 views
Mapping of TDMA frame on to E1 frame
In a GSM network TDMA frame is used to transmit information between Base station and Mobile staton and E1 frame is used as the media to carry information to and in the Backhaul. How is th TDMA frame ...
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1answer
80 views
GSM Power Supply
http://www.powersystemsdesign.com/usb-modem-design
Can anyone tell me how the energy values in the table are calculated in the link above,
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1answer
238 views
difference between voice and data services?
What is the difference between the voice and date services. I have read that for voice services T1/E1 frame is used and for data services a frame with a standard header and payload nd tail is used ...
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1answer
241 views
how much bandwidth does a phone call require and how much is the capacity of a single E1?
How much is the bandwisth requirement for a phone call connection? Considering a non-channelized 1 with 32 time slots how many calls can an E1 support?
Say its 'n'. Does that mean n+1 call will not ...
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0answers
156 views
3G Antenna for arduino Equivalent?
I am looking for a US equivalent for this antenna External GPRS-GSM-UMTS Antenna
which I know is 3G compatible with this 3G/GPRS Shield for arduino
I'd like to not lose any potential capabilities of ...
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2answers
220 views
Development board with cellular capabilities smaller than Arduino
I would like to build my own cellphone (phone calls and texts at least).
Having experience with Arduino, I found several cellular shields and libraries that could allow me to do so with Arduino.
...
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1answer
122 views
digital voice on gsm modules
I would like to understand how to handle digital voice on gsm modules.
After reading 3gpp gsm mux 07.10 specification it is my understanding that gsm modules can be configured to transport voice ...
2
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1answer
230 views
Establish connection between analog and GSM modem
I want to know if I can call a GSM modem (a SIEMENS MC55) from a normal analog (PSTN) modem. If so, how do I have to configure the GSM and the analog device? I've read about the +FCLASS and +CSNS ...
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1answer
363 views
Arduino, GSM quadband module and gas sensor connection anyone?
I have an Arduino, a GSM quadband module and a gas sensor.
I could only find connections of GSM to Arduino and gas sensor to Arduino. Anyone who can give me a connection diagram of three devices?
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1answer
794 views
Can this used with Arduino to send SMS to phone?
I want to know the possibility of using this TC35 board to send SMS to my phone?
If there is possibility, what about codes? Does anyone have relative codes for it?
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1answer
3k views
Designing a GSM PCB antenna
Before someone complains about my crappy design I should tell you that my knowledge on antennas or RF is near zero.
I recently worked on a project that required a GSM module. After testing it on a ...
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1answer
224 views
Implementation ideas for software defined radios
I find Software defined radios interesting, and was searching for ways to learn about it.
One way is getting your feet wet with devices like USRP products.
However, USRPs are rather expensive.
What ...
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1answer
2k views
How to use a multiple serial port in Arduino
I have obtain 2 shield from Itead; GPS Shield & IComSat GSM Shield. I have a requirement to
develop an Arduino Uno prototype and used a serial interface to communicate with this two shield. My ...
2
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1answer
141 views
What certifications are needed for GPS/GSM devices in AirPort?
I am kind new in industrial engineering my company has order for several devices which would be used in airport Technics cars. Do I need some kind of special certification for devices that I create to ...
2
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2answers
450 views
GSM/GPRS module to call phone
I would like to do a DIY intrusion detection system.
I think I understand roughly what it's needed (door magnetic switches, windows magnetic switches, IR motion detection, password prompt, webcam), ...
3
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1answer
565 views
Need formula to selecting coaxial cable type and GSM antenna
Need formula to selecting coaxial cable type and GSM antenna
I'm using a GSM modem for my application which is often installed at a basement where there is no GSM signal so I will need to attach it ...
3
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2answers
545 views
GSM sim card extension cable
I have the problem that I need to locate the sim-card about 8 meters from the device in which it would normally be installed. As far as I am aware, the devices communicate with the sim card with a ...
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2answers
224 views
Worldwide usage of 902-928 MHz band
I don't know if this is the most indicated stackexchange site to ask this, but I'll give it a try:
I know 902-928 MHz is part of ISM band, and I know for sure it is a free band to use in Region 2 ...
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1answer
547 views
Can't write to GSM module through Serial connection from ARM board
In our Graduation project, we're supposed to connect a GSM module (ADH8066) to our ARM board (OK-6410) which is running Embedded Linux (Qtopia) and communicate with it.
When we first operate on the ...
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6answers
3k views
Why does GSM cause speakers to buzz?
Based on numerous internet resources, speaker wire acts like an antenna which picks up the transmitted signal of nearby cellphones and causes the speakers to buzz. But I'm not really buying that...
A ...
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4answers
919 views
How to power a GSM Modem from a Li-Po battery?
I want to integrate an AirPrime SL6087 GSM modem into a design, this is my first try at working with a GSM module. The datasheet states that the modem draws 2A for 1mS every 4mS (max) at 3.6V, the ...
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2answers
2k views
How to wire a GSM module to my alarm system
I have an alarm system that has been installed by an alarm dude ;)
I want to add a GSM module to the alarm system, so that I'm notified when the alarm is triggered. Before I purchase the module I ...
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1answer
175 views
Host (baseband) controller in mobile phone
Hi mobile world I met many times the term "host controller" or "baseband controller" used interchangeably in the context of being the heart of the mobile. What exaclty is that, som SoC with CPU, GPU, ...
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1answer
221 views
Adding 3g wireless capability to an embedded project
How would I go about adding 3g wireless capability to an embedded project? Initially I thought about just using a USB host controller and purchasing a USB 3G card. This idea however seems "hackish" ...
7
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2answers
809 views
Dual-SIM phone, do they use 2 GSM modules ? Anyone has high level schematic?
As an slight extension of my project, I am trying to see if I can improve connectivity resilence by using a dual-SIM approach. Dual-SIM phones (or Tri-SIM, quad-SIM phones) are quite popular in many ...
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2answers
204 views
Is this part hand-solderable, or will certainly require reflow soldering?
Here are the mech specs for the part (it is a GSM module) -
Note that all dimension are in "mm".
If hand-solderable do I need to keep some specific precautions in mind (from soldering ...
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1answer
554 views
Killing GSM Buzz with Ferrite Beads
I'm trying to rid my speakers of the typical buzz from my iPhone. I get poor reception in my apartment and so it's constantly trying to find a signal, meaning I get a near-constant buzzing when the ...
5
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1answer
622 views
TI LM3S ARM Cortex M3 with USB 3G Modem
I've got a TI LM3S Cortex-M3 Development board with USB host. I've done quite a bit of TCP/IP programming through the Ethernet and using SPI/UART GSM modems, but I was wondering the feasibility of ...
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2answers
346 views
Typical GSM current profile
I'm working with GSM modem and I'm wondering if anyone has come across any sort of measured or typical GSM current profiles for various actions such as:
Connecting to base station
Sending a SMS
...
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1answer
130 views
Scan for mobile phones?
I'd like to measure queuing time, similar to what they're doing in Finland. Instead of detecting bluetooth (which is disabled in most phones) I thought of detecting EDGE/3G.
I'd like to log the ...
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2answers
1k views
Circuit Design to Power the ADH8066 GSM Module
I am struggling to find the proper circuit design layout to properly power the ADH8066 GSM module and communicate with my Arduino.
The ADH8066 requires a 4V power supply and can have a brief spike of ...
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3answers
634 views
Connect SIM module to a Gumstix?
Is there a way to connect a SIM module to a Gumstix? I've tried to find commercial solutions (add-on modules) that will do this but have not found any. Surely an addon providing mobile connectivity ...
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1answer
335 views
Help with GSM Module from Telit GM862
Greetings,
I bought a GM862 module some while ago, I introduced the SIM card and made all the necessary conf but I always get the:
AT+CREG?
+CREG: 0,2
response, which means that is trying to get a ...
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4answers
754 views
Arduino +squidbee GSM shield + ethernet shield
I am triying to make a webserver of the ethernet shield to send SMS messages via the squidbee GSM shield
Apparently i can't connect both the GSM shield and Ethernet Shield to the Arduino...
Is this ...
4
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3answers
472 views
Home automation Controller/server needed
I'm looking for a device that allows me to supervise an existing BTicino home alarm system. The system can communicate via RS-232 (or USB) interface using an open protocol, Openwebnet.
I need to be ...
6
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2answers
2k views
Can I remove a GSM module from an old cell phone?
I found this project that uses a GSM module (scroll down to see Picture 5). It seems the module has to be bought separately. I have old GSM cell phones lying around in the house. Shouldn't these ...
