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 Post subject: Modem GPRS QuadBand - How to test if it works
PostPosted: Mon Aug 15, 2011 4:35 am 

Joined: Mon Aug 15, 2011 4:27 am
Posts: 1
Hi guys,

I recently acquired a quadband module for my arduino, Mega 1280.
However, I couldn't get it working. I mean, I followed all the steps at the tutorial (standalone mode) but there is no reply from the modem.

I bought a gps module as well and it works just fine. So I guess I`m not that newbie and I believe that I'm missing something related to the arduino mega itself or the module is not working properly.

Therefore, I would like to know if there is any way to test whether this modem works, besides those steps defined at the tutorial.

I tried to write via serial only "AT" and kept looking at the serial monitor but, just like for the commands described in the tutorial, no response.

I though about forcing the arduino to work as a gateway, but its not that simple since the microcontroller is not easily removable, like arduino uno. But maybe that is possible, is it? That way I could test the modem using my pc directly.

Any help is welcome.

Thank you in advance.


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 Post subject: Re: Modem GPRS QuadBand - How to test if it works
PostPosted: Tue Aug 16, 2011 9:26 am 

Joined: Mon Sep 28, 2009 12:06 pm
Posts: 11366
Some pcs don't supply enought current throught the usb port to make the gprs module work. To be sure that it isn't a power supply issue try to supply power to arduino through a power supply able to give 2A of current.


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