Raspberry PI (B) + NXP Explore NFC

Hi,

Please help!!

I have purchased a Raspberry Pi (B) and a NXP Explore NFC board, I need to use them to send file from Raspberry to NFC enabled phone.

I have tried the demo/sample code but no luck, it just cannot detect my NFC enabled phone (Samsung Note II).

Can someone help?

regards

pi@raspberrypi ~/NFC/P2P-SNEP_clientPUT $ sudo ./Snep_client

Enter: piBoardRev

piboardRev: Revision string: 000d

, board revision: 2

OK: phbalReg_R_Pi_spi_Init

wId: 109

spiFD: 0

spiMode: 0

spiBPW: 8

spiDelay: 0

spiSpeed: 1e8480 2000000

Enter: phbalReg_R_Pi_spi_OpenPort

Chip version: 82

phpalI14443p3a_Sw_Init

phpalI14443p4a_Sw_Init

phpalI14443p3b_Sw_Init

phpalFelica_Sw_Init

phpalI18092mPI_Sw_Init

phacDiscLoop_Sw_Init

phhalHw_FieldReset

DiscLoopInit

DiscLoopDemo

Pooling: 5

Pooling: 4

Pooling: 3

Pooling: 2

Pooling: 1

Pooling: 5

Pooling: 4

Pooling: 3

Pooling: 2

Pooling: 1

Pooling: 5

Pooling: 4

Pooling: 3

Pooling: 2

Pooling: 1

Pooling: 5

Pooling: 4

Pooling: 3

Pooling: 2

Pooling: 1

Pooling: 5

Pooling: 4

Pooling: 3

Pooling: 2

Pooling: 1

0 Former Member over 11 years ago

Firstly make sure that NFC is enabled on your phone in the settings. Also check out http://developer.android.com/guide/topics/connectivity/nfc/index.html if you are using an Android device. Generally P2P data transfer uses Android beam which uses Bluetooth.
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0 Fred27 over 11 years ago

If the Explore NFC is scanning for a NFC tag then it might not detect the phone. I believe that tag emulation isn't "automatic" under Android unless you run an app to do this. My Samsung Ezon NFC lock doesn't see my Nexus 5 as a tag either. If the Explore NFC can act as a tag rather than a reader, that might work better.
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0 Former Member over 10 years ago

My Pi can detect the phone or tablets in P2P, but once detected does nothing. Phone does not seem to respond. So no file gets sent to the device.

Card detected.
phhalHw_FieldReset 0
Pooling: 5
...
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0 mcb1 over 10 years ago

I'm interested in this discussion as I have a Nexus7 and NFC ring.

I did find that a number of the apps were designed for 'tap and go' ie they needed to be tap'ed together before they communicate.
It's possible that this is stopping the transfer from being triggered.

As I understand the 'tap and go' is for transferring very small pieces of data (usually for payment) between a card (or equivalent) and a host.
In the case of two phones one would act as host, and the other as the 'tag' or 'card'.

Since most of these devices have bluetooth, why would you want to use NFC for passing data.?

Mark
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0 fvan over 10 years ago

The "Pi Passport" project might be a useful source of information: Pi Passport: Project Introduction

Frederick
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0 mcb1 over 10 years ago in reply to fvan

Nice link

Thanks
Mark
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0 Former Member over 10 years ago

I went back to project one, got that working then moved on to project two, then modified the NDEF message to pass the data I needed to pass to the device. I did attempt to add database access to make the NDEF message dynamic, but whilst I could make it work outside of the project, once I tried to implement it in to the project I had no luck, spent about 12 solid hours on it and got nowhere. In the end I just modified the NDEF message to point to an external URL and used PHP to take care of the dynamic information. It is a shame I was unable to apply this in C, I may try again in the future.

I'll check out the link, thanks.

@ OP, try starting out with project one, and going from there. Also get hold of a standard MiFARE NFC tag and see if it can see that, and maybe the card that comes with the dev pack.
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