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NFC + gprs sim900


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#1 Guest_Belmondus_*

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Posted 21 September 2014 - 03:03 PM

Hi when i stack both shields, nfc is stop working (i use example without sim900 is working when i add shield its stop)i use arduino yun

 

any help?



#2 chain

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Posted 22 September 2014 - 01:37 AM

Add a 5V/2A power supply to have a try?



#3 Guest_BelmonduS_*

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Posted 26 September 2014 - 05:45 PM

i done it and there is no success even if i add power supply switch to ext power i think its pin A4/A5 what make a problem because when i disconnect them nfc was operational

 



#4 chain

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Posted 28 September 2014 - 03:13 AM

i done it and there is no success even if i add power supply switch to ext power i think its pin A4/A5 what make a problem because when i disconnect them nfc was operational

OK, thanks for your patience.



#5 Guest_BelmonduS_*

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Posted 30 September 2014 - 03:14 PM

Any luck?



#6 jim

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Posted 27 October 2014 - 03:22 PM

Can you please take a picture of your setup?



#7 jenbaker

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Posted 20 February 2016 - 07:23 AM

hi 

 

could you post a picture which could show your problem?

 

by the way, does someone here know this could i add a rfid chip into this nfc item?

i want it could be a rfid reader also, just like any of  rfid readers 

 

who know the program?



#8 jenbaker

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Posted 24 February 2016 - 03:47 AM

hi 

 

i come back.

 

hope more sharing together here






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