Hi everyone I'm looking in to NFC for a project I have on the table, and one of the requirements is for an NFC message to be sent from a mobile device (nexus) to a non-android device (target), which should process the message and return an NFC response.
Now, I understand that under normal circumstances this wouldnt be possible. However, I wondered if some learned person could take a look at my proposal and suggest any obvious problems with it: 1. nexus detects when an nfc connection is made. In this case, when the device is put in front of the non-android (target) device 2. an intent is received and processed in my app and in response the app writes out an ndef payload 3. the target device processes the ndef record and does some mechanical thing at its side 4. in the meantime, having sent its ndef message, the Nexus sets up a listen intent. 5. the target device, having finished doing its thing, *resets its NFC chip* (I assume for the moment the target device is capable of doing this) so that the NFC field is effectively broken and then (presumably) re-established with the nexus 6. the nexus re-detects the NFC connection and, because it is in read mode, receives the ndef message from the target and processes the data. This would all have to be accomplished in the app using the nfc read/ write modes, rather than any P2P capabilities. I have a question mark around using the read/write modes between two active devices (i.e. no passive tags) so if someone could comment on this that'd be real handy. Would this work? I was also thinking of using SNEP in Android 4 but I'm not sure whether this offers any form of challenge/response or if it is just an updated version of the previous P2P implementation (through the addition of a couple of useful callback listeners). SNEP would at least allow me to change modes when I detected my NDEF had been sent, but i'm not sure what else. Would really appreciate any insight. Cheers LS p.s. we are also considering a Bluetooth only approach but for the purposes of this message I'd really like to focus on NFC only solutions. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
