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46  Using Arduino / Installation & Troubleshooting / Re: Which GSM Shield? SIM900 and Arduino GSM differences? on: August 07, 2014, 10:22:50 am
Personal experience?

The Arduino shield connects to the network when the SIM900 shields won't.

The Arduino one has a library which is included as part of the IDE.
47  Using Arduino / General Electronics / Re: Altering pressure transducer voltage signal on: August 07, 2014, 10:10:08 am
Would a voltage divider work?
48  Using Arduino / Programming Questions / Re: my code doesn't work on: August 07, 2014, 09:21:09 am
Quote
thanks you are a great moderator you are the man

I wouldn't go that far but usually he's ok.  smiley-lol

I would also point out that he was the first person to try to help you. If you don't understand the answers then either Google it or ask about the part you don't understand. Nobody minds helping someone who is trying to help themselves.
49  Using Arduino / Programming Questions / Re: Serial port error on: August 07, 2014, 08:44:53 am
Look up 'ASCII table' on the internet and see if you can see why?
50  Products / Arduino GSM Shield / Re: gsmAccess.begin() doesn't work on: August 07, 2014, 02:07:33 am
The Swisscom GPRS parameters I found say to leave password blank?

http://www.swisscom.ch/en/residential/help/loesung/server-settings-mobile.html
51  Using Arduino / Programming Questions / Re: looking for sample SIM900 AT commandset on: August 06, 2014, 01:44:41 pm

Not by the sound of the name.

There's a copy to be found in the link in my signature. It's a fairly simple program and its purpose is to send commands from serial  monitor to device (in this case modem) and send any replies back to serial monitor. It does this by writing any incoming data from the device to a character array, and when it is either full or there is no more data to be read, send it to serial monitor.

Load it into the Arduino, open serial monitor, type in AT and you will get the reply AT OK.

Within the script if you keep monitoring the incoming character you can check for carriage returns and new line characters and act accordingly.
52  Using Arduino / Networking, Protocols, and Devices / Re: HELP Please!!! SMS Not Sending from Mega2560 on: August 06, 2014, 07:49:10 am
Are you certain this should not be a Serial1.println() call? These commands are normally terminated by a cr/lf.
Code:
  Serial1.print("AT+CMGS=\"+447xxxxxxx92\"");  // send message command...


Good catch!

I blame not enough coffee!
53  Using Arduino / Networking, Protocols, and Devices / Re: HELP Please!!! SMS Not Sending from Mega2560 on: August 06, 2014, 03:46:49 am
That snippet of code looks fine as it stands. What modem are you using, and can you post the rest of your code?
54  Using Arduino / Project Guidance / Re: send sms of output on 16*2 LCD by gsm q2303a with arduino uno on: August 05, 2014, 02:12:16 pm
Have you tried this?

http://forum.arduino.cc/index.php/topic,96580.0.html
55  Using Arduino / Programming Questions / Re: looking for sample SIM900 AT commandset on: August 05, 2014, 08:49:26 am
If you dig out a copy of SerialRelay from the internet then that shows a simple way of achieving what you probably want to do. It reads incoming Serial from device, appends to a character array, and when full or no more incoming, send to monitor.
56  Products / Arduino GSM Shield / Re: Arduino Uno + GSM Shield upload data to Hosted MYSQL database on: August 03, 2014, 10:59:00 am
Yes please, and when you do so you will notice a key with a '#' on it on the second row. This makes it easier to read and doesn't mangle it.

57  Using Arduino / Programming Questions / Re: Is there something wrong with gsm shield ?? on: August 03, 2014, 03:43:50 am
Somebody has probably written a library for generic GSM shields, somewhere. But it's not too difficult to control it using AT commands and you have more control of what is in your code and what it's doing.

If you've not already done so then have a look at my signature link - it will show you, in very simple terms, how to test that it works and carry out some basic operations.
58  Products / Arduino GSM Shield / Re: Arduino Uno + GSM Shield upload data to Hosted MYSQL database on: August 03, 2014, 03:35:06 am
I'll look at the code but only if it is posted on here - and using the code (#) tags!
59  Using Arduino / Installation & Troubleshooting / Re: COM port problems - need help. on: August 01, 2014, 09:41:06 am
My personal experience is that Windows allocates the same COM port number to an individual Arduino board.
60  Topics / Home Automation and Networked Objects / Re: Gps module returning erroneous and same data on: August 01, 2014, 09:36:48 am
Quote
The GPS module's TX output is connected to Arduino Uno's PIN 0 (RX)

I don't like the sound of that. Aren't you using 0 & 1 for Serial communication with the pc?

And do you have a link to the actual gps device you are using?
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