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Forum Index : Microcontroller and PC projects : GSM MOD Duinomite Mini

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Hneo2au
Newbie

Joined: 03/03/2012
Location: Australia
Posts: 5
Posted: 03:57am 03 Mar 2012
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Has anyone had success With wth GSM-Mod board as I am having trouble getting any data output. I have used the sample code http://olimex.wordpress.com/tag/gsm/ and corrected an error on line 100 but I cannot get the module to respond. I have checked with the scope that the Dunomite is sending data but as yet I have had no response from the module at all. The status led say that the module in connected to the Network.
Thanks
Lindsay
 
Olimex
Senior Member

Joined: 02/10/2011
Location: Bulgaria
Posts: 226
Posted: 06:29am 03 Mar 2012
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Lindsay please use support@olimex.com to report your problem
please write what power supply etc you are using, if the sim card you out in the module is pin free etc as much as possible info so our tech support people can track what you do wrong
 
Hneo2au
Newbie

Joined: 03/03/2012
Location: Australia
Posts: 5
Posted: 08:16am 03 Mar 2012
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Thanks, I have reported the problem as you suggested.
 
timor
Newbie

Joined: 11/03/2012
Location: Finland
Posts: 2
Posted: 01:26pm 11 Mar 2012
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Hi, did you manage to solve this? I have exactly the same problem and had success in sending SMS with one of the examples. So sending seems to be working but receiving does not.

Regards,
Timo
 
Olimex
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Joined: 02/10/2011
Location: Bulgaria
Posts: 226
Posted: 02:26pm 11 Mar 2012
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please send e-mail to Lubo support@olimex.com and he will respond
when SMS is received the GSM module send string which is several lines
I think I posted code somewhere about how to handle the incoming strings and get the useful info inside
Tsvetan
 
Hneo2au
Newbie

Joined: 03/03/2012
Location: Australia
Posts: 5
Posted: 10:33pm 11 Mar 2012
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I had a response from Olimex regarding the connecting cable, connect only Pins 2,3,4 in the uext cable. ( Lubo suggests cutting the cable but I just jumpered the three wires and it works).There appears to be a conflict with the other connections. Also you have to send the command "ATV1" to the modem to set the response is messages rather than numbers.Bit of a steep learning curve, but satisfying when you work it out. I thank Olimex for it response.

regards
LindsayEdited by Hneo2au 2012-03-13
 
Hneo2au
Newbie

Joined: 03/03/2012
Location: Australia
Posts: 5
Posted: 09:34am 14 Mar 2012
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Just had an update from olimex support "A little update on MOD-GSM + DuinoMite.

Now I did manage to do find that the problem is that DuinoMite is keeping the CTS line high (1), which stops the send messages by the GSM chip. If you set the DuinoMite PIN6 low (0) it should work without cutting the cables:

5 SETPIN 6,8
9 PIN(6)=0

 
timor
Newbie

Joined: 11/03/2012
Location: Finland
Posts: 2
Posted: 04:59pm 26 Mar 2012
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Lindsay (and Tsvetan), thanks!

Finally I got it to work also. I should say that I did write to Olimex support too and got exactly the same instructions, but I had a newer version of the firmware (DMBasic) which has some issues on the COM3/4 -ports and requires a pullup resistor to work. I just burned an older version (MMBasic) and now I get response from the module.

Regards,
Timo
 
vk4tec

Senior Member

Joined: 24/03/2012
Location: Australia
Posts: 239
Posted: 02:06pm 06 Apr 2012
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Have you guys had any success with GPRS ?

Or is SMS the furtherest you have gone ?

Andrew
Andrew Rich VK4TEC
www.tech-software.net
 
Olimex
Senior Member

Joined: 02/10/2011
Location: Bulgaria
Posts: 226
Posted: 08:42am 07 Apr 2012
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Did you read the AT commands PDF? on the last pages there are examples how to establish TCP-IP and GPRS link. I didn't try these as I had no need to use TCP-IP or GPRS through GSM as it's expensive way to send data.
 
vk4tec

Senior Member

Joined: 24/03/2012
Location: Australia
Posts: 239
Posted: 10:14am 07 Apr 2012
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Not really expensive

GPRS is through to UDP on my LINUX box

SMS is old and bulky


Andrew Rich VK4TEC
www.tech-software.net
 
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