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Topic: Question about 3G shield with sim5216E (Read 21 times) previous topic - next topic


Hi, all
I'm playing with 3G shield with SIM5216E module.
I found user guide for this module at www.elecfreaks.com.
and it says I need to mount the shield on Arduino uno with sim card.
but also the guide states that I need to unplug micro controller chip and use jumper, but there is not sufficient explanation about it.....
I just tried to use this shield without unplugging the chip and using the jumper....and I'm having a problem to communicate with the 3G module....
Any one can help me?
I attach the figure of the 3G shield.

Yusun Lee

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