The NFC Data Exchange Format (NDEF) specification is a common data format for NFC Forum Devices and NFC Forum Tags.
NDEF is a lightweight, binary message format used in NFC for data exchange.
Questions tagged [ndef]
496 questions
-1
votes
1 answer
TI RF430FRL152HEVM NFC NDEF formatting
We have designed a board based on TI RF430FRL152HEVM evaluation module with NFC capability. When an Android phone comes near the the antenna of the board, the NFC allows the processor to boot up and to begin reading the data.
It puts the data it…
Clararhea
- 159
- 1
- 2
- 13
-1
votes
1 answer
Multiple NDEF Message Creator of Same type
Is there a way to create multiple NDEF message (2 at least) of the same type ( sms, uri,geo location, text,etc ) using some utility .
I got this link: https://e2e.ti.com/support/wireless_connectivity/f/667/t/341634
but it has NDEF record of…
Raulp
- 7,758
- 20
- 93
- 155
-1
votes
1 answer
NFC - Send tag or NDEF message on Tap
Is it possible to send a NDEF message without input from the user?
I would like to use NFC in the following scenario: The user taps Device on NFC reader. NFC reader receives message as response.
Essentially I want the device to operate as a Tag i.e.…
John
- 754
- 1
- 10
- 26
-1
votes
1 answer
NFC tag appending from Android
I would like to know how to append some text to an NFC tag on Android. I know that writeNdefMessage can overwrite the the whole message on the tag but I did not find any method to append data to it. However, I would prefer to append it.
Chit Khine
- 23
- 4
-1
votes
1 answer
Developing custom functions in NFC
I watched a youtube video: http://youtube.com/watch?v=td_O6m6zDLo
It shows how NFC works with the device. Opening app and etc. But what if I want to develop my own NFC tag with functions like, for example, store user's Facebook profile link and when…
Stan
- 7
- 3
-1
votes
1 answer
NFC enableForegroundDispatch to handle Beam within activity
the app i'm working on ought to receive a beam and then call the processIntent(intent) function from onResume. the problem i'm having is that when it receives the beam, it opens a completely new instance of the app instead of just staying within the…
user3827758
- 3
- 1
- 4
-1
votes
1 answer
Two MIME type in NFC tag in Android
Can we add two MIME types in NFC tag while writing. I.e., I want to add two package names to MIME type. Actually I want to launch any one of the two application while reading the NFC tag from outside the app whichever application is installed.
SmartAndroidians
- 11
- 2
-1
votes
1 answer
How many data the NDEF payload can carry?
The DOC of google android said the ：payload byte array, containing zero to (2 ** 32 - 1) bytes,must not be null.
So I think a NDEF record can carry 4GB data.
But when I check the max size of Samsung‘s TecTiles with ndef.getMaxSize()
the size is…
fly84021210
- 131
- 2
- 10
-2
votes
1 answer
Read or emulate NFC card with Android 4.2.2
Can I read or emulate with Android 4.2.2 (on a Galaxy S4) ISO/IEC 14443B (NFC) cards like SRI 512?
If yes what can I emulate? All the card data?
dookilo12
- 1
- 1
-2
votes
1 answer
My app compiles and builds fine, but quits unexpectedly?
When I compile/build my app, it creates my APK without any errors. Additionally, in Android Studio, I don't have error notifications. So I expect the app to work. However, when I install and open the app, as soon as I scan an NFC tag, I get the…
Leo
- 21
- 3
-2
votes
1 answer
storing image file to MiFare classic 4K
i'm writing NDEF data with a MIME type of text/plain to a MiFare classic 4k NFC tag , i also have to store a jpg (or any other possible format)in the NFC tag,i'm wondering how this could be done.
joghm
- 569
- 3
- 20
-2
votes
1 answer
Android: Write a byte array via NFC
I am currently working on NFC and would like to write a byte array to an NFC tag. I am able to write a string using the following code:
private void write(String text, Tag tag) throws IOException, FormatException {
NdefRecord[] records = {…
user5611984
- 1
- 2
-2
votes
1 answer
TT3 Attribute Block for sending an email using NFC
I want to send NDEF data through RC-S801 dynamic NFC tag with an Arduino which prompts the user to send an e-mail to a specified person with some subject and body. Can somebody tell which TT3 attribute block to use?
For URL I am sending…
Shreyas
- 419
- 1
- 5
- 14
-2
votes
1 answer
NFC Software developement kit NFC wrapper sample Code
When I Open the NFC wrapper sample codethe program works by stating "SCM_NFC.DLL successfully loaded". But when i tried debugging the code and place the card on the device. i am always getting MessageCount as Zero.
Can anyone tell me whats…
Suresh Savage
- 425
- 2
- 7
- 16
-2
votes
1 answer
How to create an NDEF message that erases a NFC tag
I am creating an NFC application. I am a noob at Android this is my 2nd application. I was wondering if anyone knows how to create a message that erases the NFC tag. This function is seen in applications like TagWriter.
user3020416
- 1
- 1
- 4