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121  Using Arduino / Project Guidance / Re: TinyGPS + SIM900 + Arduino = Vehicle tracking device on: April 29, 2014, 09:07:09 am
Not a specific answer to your question, but just a few subjects below is this one:

http://forum.arduino.cc/index.php?topic=236595.msg1700978
122  Using Arduino / Project Guidance / Re: GSM project works with UNO, not working with NANO? on: April 29, 2014, 02:56:07 am
For details about current draw and voltage drop look at page 27 of the document you link to.
123  Using Arduino / Programming Questions / Re: Need help using GSM shield with arduino on: April 29, 2014, 02:31:41 am
Have you done a basic search? There are several examples of how to achieve this on the internet.
124  Products / Arduino GSM Shield / Re: GSM + Mega2560 on: April 28, 2014, 04:26:10 pm
There's a SIM900 based one around which allows you to configure which pins to use for Rx & Tx, useful when using a Mega. The cheap Seeedstudio one requires the use of pins 0 & 1 which messes up communicating with the board.

You may need to use SoftwareSerial, so check that it can be used on the pins the shield offers you. See The SoftwareSerial reference for further details.
125  Products / Arduino GSM Shield / Re: GSM + Mega2560 on: April 28, 2014, 03:34:36 pm
It's not a good match with the Mega. Bending pins and using jumpers? At the risk of being ostracised I would give some serious thought to an alternative gsm shield.
126  Products / Arduino GSM Shield / Re: GSM + Mega2560 on: April 28, 2014, 02:42:54 pm
Caveat - I don't actually have one of these boards.

Is there any particular reason that you want to use a different pin? If you just plug it into the Mega and jumper pins 10 & 2 and bend pin 2 out of the way then there is no reason it shouldn't work. Do you have an Uno to test it on without the need to bend and jumper it?
127  Development / Other Software Development / Re: GPS shield with Ardunio on: April 28, 2014, 02:23:27 pm
$GPGGA contains time, latitude, longitude and then crucially fix quality. This is non-zero when it has a fix. This is followed by the number of satellites in view.
128  Products / Arduino GSM Shield / Re: GSM + Mega2560 on: April 28, 2014, 01:59:19 pm
Are you using the official Arduino board?
129  Using Arduino / Installation & Troubleshooting / Re: [ Urgent ] TESTING THE ARDUINO UNO BOARD on: April 28, 2014, 01:39:17 pm
The most basic test that I can think of which proves that the board is operational is to load the blink sketch, change the on / off ratio to some thing like 100/1900 and upload it to the board.
130  Using Arduino / Programming Questions / Re: Can't read SMS on the port serial. [GPRS + Arduino] on: April 28, 2014, 09:44:39 am
In your original example,

+CMGL: 1, "REC READ","+3247321"

the 1 indicates that the message is in memory location number 1

Use AT+CMGR=<memory location> to read the message at a particular location. (e.g. AT+CMGR=1)
131  Using Arduino / Programming Questions / Re: Can't read SMS on the port serial. [GPRS + Arduino] on: April 28, 2014, 09:27:30 am
Code:
GPRS.println("AT+CNMI=2,2,0,0,0\r");

In what way doesn't it work? When you issue the command do you get an error? You only need to do this once, the modem will remember the setting until it is reset.
132  Using Arduino / Programming Questions / Re: Can't read SMS on the port serial. [GPRS + Arduino] on: April 28, 2014, 09:04:14 am
Which means that the text messages are sent to memory and only a notification is sent to the serial monitor.

I assume that you want the entire message sent to the serial monitor on receipt? If so, try sending
Code:
AT+CNMI=2,2,0,0,0
133  Using Arduino / Programming Questions / Re: Can't read SMS on the port serial. [GPRS + Arduino] on: April 28, 2014, 05:52:24 am
What do you get in response to
Code:
AT+CNMI?
134  Using Arduino / Project Guidance / Re: Problem with arduino Duemilanove!! HELPPP on: April 27, 2014, 06:36:38 pm
Some people on the forum may indeed have a problem with dealing with intelligent women but not all. But on the other hand it is not unknown for some people to portray themselves as the fairer sex in order to elicit a more sympathetic response.
135  Using Arduino / Project Guidance / Re: Problem with arduino Duemilanove!! HELPPP on: April 27, 2014, 05:57:48 pm

raschemmel !

An avatar is an avatar. Please do not assume gender from the photo. Gail Shaw, who is a very active participant on SQL forums, is female, but as an avatar has some male character from the Star Wars trilogy.
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