Hello skjolber,
I am using this sample. I connect NFC ACR 122U Reader by USB with my samsung galaxy tab A6 and run externalNFCClient application. Then app not connected with reader.
When i have installed External NFC Reader Service app(https://play.google.com/store/apps/details?id=com.skjolberg.nfc.external).Click on Start service now button then USb device connecttion window appear and reader connected.After connection i have again test sample then it's worked fine.

So please provide any sample to connect NFC ACR 122U Reader by USB.

Hi, I have been trying to compile the libraries so I can get the phone connected to the acr1255U-J1 with no luck. Any chance of a sample code on that?

Magical thanks in advance.

Hi,

With the current library, is it possible to use the ACR reader (for example the ACR122U) in card emulation mode to emulate an ISO 7816 compatible smart card application? If so, is there a code example for this? The only HCE code I could see was a test Android HCE app but I may be missing something.

Thanks,

Martin Patefield-Smith

Hi skjolber and thank for this great collection of nfc tools.
I am using the server-example application and try to get the tags UID.
With Mifare Desfire tags there is no problem and it works perfect. But at MIFARE Classic 1k tags the logs always shows the following logs:
2020-09-07 08:43:32.053 3791-3803/com.github.skjolber.nfc.external I/com.github.skjolber.nfc.service.BluetoothBackgroundService: onCardStatusChange sta: Present. 2020-09-07 08:43:32.057 3791-3803/com.github.skjolber.nfc.external D/com.github.skjolber.nfc.service.BluetoothBackgroundService: Power on card.. 2020-09-07 08:43:32.138 3791-3803/com.github.skjolber.nfc.external D/com.github.skjolber.nfc.service.BluetoothBackgroundService: onAtrAvailable: 3b8f8001804f0ca000000306030001000000006a 2020-09-07 08:43:32.139 3791-3803/com.github.skjolber.nfc.external D/com.github.skjolber.nfc.service.BluetoothBackgroundService: Got tag type MIFARE_CLASSIC_1K 2020-09-07 08:43:32.141 3791-7026/com.github.skjolber.nfc.external D/com.github.skjolber.nfc.service.BluetoothBackgroundService: Regular mode 2020-09-07 08:43:32.615 3791-7026/com.github.skjolber.nfc.external W/com.github.skjolber.nfc.service.AbstractService: Unable to read tag UID

Am I doing something wrong or does the application not support MIFARE Classic 1k?

Hi,
i've tried both the client and the kiosk apps but the acr122 is not detected, the usb dialog doesn't come out.
I've also tried the acr122 app on play store and it works like a charm.

Do you have any feedback on this?

Thanks

I have an NFC Reader/Writer that is USB (ARC122u). I am trying to test this out to work with my Pi. I am getting Native NFC is not available. How can I get this working?

Thanks

I want to see demonstration app(Basic Server app or Basic Client app) but it occurs 404 error..

Please fix the link.. help me...

Hi,

We would have a use case for using external NFC Readers with a Chrome Website. The External NFC Service on Android can read and provide the data to apps but Chrome seems to ignore everything that is not an internal NFC reader.

Do you see any possibility of this ever working? I'd guess it's pretty much impossible without either support by Google or root.

Is it possible to access this API from React Native?

It is possible to use another External NFC Reader than ACR reader?

Hi,

Can you please add support for the PN532 module from Elechouse?
Full documentation is available here: PN532_Manual_V3.pdf
You may also check GNFC and PN532-HSU.py for reference.

The HSU (High-Speed UART as they call it) can be used to communicate with External NFC using a UART to Serial breakboard, such as FTDI or CH340G.

Hello Thomas,
I am trying to read and write on MIFARE UltraLight NFC card using ACR 122U, its worked tomorrow but today its not.
Nivesh Shastri

It seems like the ExternalNFCHostApduService doesn't work on devices without an internal NFC reader. Does this sound correct?

When trying to connect to an UltralightC i get the following message:

Connecting to this technology is not supported by the NFC adapter.

I've tried it with both the ARC122U-A9 Reader and the ARC1252U-A1

I'm running android 5.1.1 on an ODROID C2

Tag tag = (Tag)intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
NfcA nfca = NfcA.get(tag);
try {
    nfca.close();
    nfca.connect();
} catch (Exception e) {
 e.printStackTrace();
}

Hi

I came across your Mifare Desfire EV1 tool on App store, very cool. I got 2 very quick questions about the Mifare SDK not sure if you can help me with that.

1.)Does the Ultralight EV1 password protection provides the same level of protection as the Desfire EV1??
(Because on my use case i dont need that much memory saved, just about 200-300bytes of data stored, but i need additional security) I have heard that with TagInfo reader, the NTAG 21x family encrypted data can still be read.

2.) Does the Mifare Android LITE SDK allows setting/resetting password and write into 3DES encryption area?(Set the password, then set which area is protected like NTAG 2x?(I am quite new to this, still trying to figure out how it works). Or would i have to use the Advanced SDK??
Using similar functions to NTAG 21x to set password? like
your_object.programPWDPack(byte[] pwd, byte[] pack)

Hello,

I bought "External NFC Reader Service" application and I am trying to make it work with a Ionic app using @ionic-native/nfc (with phonegap-nfc plugin behind).

I have no knowledge in Android development and I don't know where to start, could you please point me in the right direction ?

Thank you :-)

I have a acr1252u reader.
I want to use the reader for hce reader. So I tested with externalNFCHostCardEmulationClient and externalNFCClient. But no log was output for externalNFCHostCardEmulationClient.

When I check log in android studio, I saw "No reader supplied" log. Does this log relate to the problem?
What I have to do?

Background services seem to be handled in a stricter way in the newer (10?) Android versions, so this server / client approach is not really working very well (the server service is stopped). Rewrite so that the server example is included as a configuration activity in the other examples.

So can we integrate the service into android framework and use the service by system API seamlessly if we can customize the ROM?

Bug i found Can't Read NDEF Message AC122U Card Mifare Classic
Peripheral i use for Dev :

• HTC One M9 - Android 9
• ACS ACR 122u
• Card Mifare Classic

from this repo i was upgrade lib use ver 1.1.5 download from acs, compileSdkVersion and targetSdkVersion change to 26
I run externalNFCService use adb wireless to get logcat
Lastly i got error like this below picture, NDEF Message from my Card Mifare Classic was Encoded by gototag.com can't read. in log UUID the Card was read perfect. Less NDEF Message

https://github.com/skjolber/external-nfc-api/blob/master/examples/server/src/main/java/com/github/skjolber/nfc/external/MainActivity.java

private final BroadcastReceiver tagReceiver = new BroadcastReceiver() {

	public void onReceive(Context context, Intent intent) {

		String action = intent.getAction();

		Log.d(TAG, "Custom broacast receiver");

		if(intent.hasExtra(NfcAdapter.EXTRA_ID)) { // Not Working...
			byte[] id = intent.getByteArrayExtra(NfcAdapter.EXTRA_ID);
			Log.d(TAG, "Tag id " + toHexString(id));
		}

		setTagPresent(!NfcTag.ACTION_TAG_LEFT_FIELD.equals(action));
	}
};

https://github.com/skjolber/external-nfc-api/blob/master/core/src/main/java/com/github/skjolber/nfc/service/BackgroundUsbService.java

private void handleTagInitRegularMode(int slotNumber, byte[] atr, TagType tagType) throws ReaderException {
	AcsTag acsTag = new AcsTag(tagType, atr, reader, slotNumber);
	IsoDepWrapper wrapper = new ACSIsoDepWrapper(reader, slotNumber);
	Log.d(TAG, "Handle tag in regular mode " + tagType); // tagType is UNKNOWN
	...
}

What I missed?

The app External service compiles and deploys to device with no problems, but it crashes when the reader ACR1255U-J1 (FMV 2.03.03, i.e. V2 I guess) is selected from Bluetooth list.

Android Studio 3.5.1 (Win10)
Samsung SM-G935F

LogCat.txt

Hello, Thomas!

Have you tried to integrate External NFC Reader Service into any Android-x86 build to get NFC working "out-of-box"? I have ACR1281U-C1 reader and I'd like to use it under VirtualBox guest w/ all the capabilities including HCE. Do you have some guide or instructions for how anyone could build Android-x86 from the sources along with your service? Or maybe you're planning to release one?

For myself, for now, I was able to fix broadcast issue by adding this in external activity class:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
			registerReceiver(readerReceiver, filter, Context.RECEIVER_NOT_EXPORTED);
		} else {
			registerReceiver(readerReceiver, filter);
		}

--Also I wanted to ask if this project is still active and if I can create pull request to also add other fixes to Issues I noticed--