How do you use NFC exactly????
kreindler said:
How do you use NFC exactly????
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NFC - near field communication is a means to receive or transmit data over a very short distance.
If you turn on your NFC and search your neighbourhood you will likely see posters,boards,bus stops with NFC tags on them - hold the back of your phone up to a tag (whilst phone is switched on and unlocked) and you will receive something from the tag.
Depending on the NFC tag you scanned you will get a variety of results - for example scanning an NFC tag at a bus stop usually opens up your web browser and takes you straight to the correct webpage detailing when the next buses are due at your stop.
If you know someone who also has an NFC enabled phone then you can hold both phones together (back to back) and share contacts,web sites and various other things nearly instantly.
You are also able to buy your own 'blank' NFC tags and configure them yourself with an assortment of apps from the play store - i personally use 'NFC Task Launcher'
I suggest hitting YouTube for a more indepth explanation but i hope this outline will help you
My question is in particular what app do I need for "reading" the nfc tags?? I am located in Romania, and here except the biometric passport and some credit cards, I don't know about any nfc tags I could scan.....
But let's take the touching phones method- do I need an app for that or just touch the phones together and you'll get a pop up menu with what 2 share or what 2 do??
Sent from my HTC One X using xda app-developers app
In your settings menu you should have an option to turn NFC on. Should be in the same menu as 'airplane mode' etc.
Once you have it turned on then no additional application is needed for reading tags.
You will need a separate application (like the one I mentioned above) to write your own NFC tags.
If you place two NFC enabled phones back just to back then the sender touches his screen and the receiver gets data from them. You can't choose what you receive but obviously the sender can choose what to send.
Though sometimes you can't send exactly what you want.
Your best option is to 'trial and error' NFC. Just sit down with a friend and spend an hour finding out what works exactly and to what extent.
Sent from my HTC One X using xda app-developers app
Tried to "read" one of my friends biometric passport. Didn't work directly as the passport tag was (how I found out a lil later) encrypted.
So you must download from the market nfc taginfo. Then go to menu an select passport scan. You'll be required to type the passport nr, date of birth and expiry date. Then place the passport tag under your phone, give it about 20 seconds, and there you have it, passport photo and all the information.
NOTE: you can use any other app for that, but for passport in particular it MUST have the option to introduce some passport info, because of the tag being encrypted. At least electronic (biometric) passports from Romania are encrypted.
I am quite curious how this can be used with credit cards "touch to pay"... Can u somehow create like a kind of wallet in your phone and store the credit cards and just touch your phone with the special POS for those cards and pay? Anybody tried or read smthing about it?
I think it could be done, but I think one could forsee the possible security issues that might appear (eg your phone gets lost).
Sent from my HTC One X using xda app-developers app
nearyoutech.com - Provides NFC Tags, Smart Posters & NFC Solutions
Dear Reader,
Near Field Communication (NFC) technology makes life easier and more convenient for consumers around the world by making it simpler to make transactions, exchange digital content, and connect electronic devices with a touch.
NFC is a wireless technology with set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into close proximity, usually no more than a few centimeters. Present and anticipated applications include contact-less transactions, data exchange, and simplified setup of more complex communications such as WiFi. Communication is also possible between an NFC device and an unpowered NFC chip, called a "tag".
---------- Post added at 05:00 AM ---------- Previous post was at 04:45 AM ----------
Dear Reader,
NFC requires a distance of 4 cm or less for communication. NFC operates at 13.56?MHz on ISO/IEC 14443 A/B, ISO 18092 etc. air interface and at rates of 106kbit/s, 212kbit/s and 424kbit/s, and higher rates are expected in the future. NFC has two modes of operation: Active and Passive.
In Active mode, both NFC devices generate their own radio fields to transmit data.
In Passive mode, one device generates radio field while the other uses load modulation to transfer the data.
NFC builds upon RFID systems by allowing two-way communication between endpoints, where earlier systems such as contact-less:good: smart cards were one-way only. Since unpowered NFC "tags" can also be read by NFC devices, it is also capable of replacing earlier one-way applications. A remarkably diverse and ever-expanding universe of NFC use cases is being explored and brought to market all around the world. Today, both research organizations and commercial enterprises are putting NFC to work in widely diverse areas.
---------- Post added at 05:08 AM ---------- Previous post was at 05:00 AM ----------
Dear Reader,
NFC Tags:
These are small RFID chips and passive devices. Any NFC enabled active device can be used to communicate with it. These are manufactured by different companies and can have different sizes, shapes (circular and square) and format (paper sticker, anti metal, card format, key fob, tokens, and inlays). NFC Forum has standardized NFC tags into following four categories to cater for the broadest possible range of applications and device capabilities:
Type 1 is based on ISO 14443 A and was initially available exclusively from Innovision Research & Technology (Topaz™). Broadcom bought this company and now type 1 tags are not easily available. It has a 96-byte memory capacity, which makes it a very cost-efficient tag for a wide range of NFC applications
Type 2 is also based on ISO 14443 A and is currently exclusively available from NXP’s Mifare Technology (MIFARE Ultralight & Mifare Ultralight C). Mifare Ultralight has 48 bytes of user memory while Mifare Ultralight C has 132 bytes of user memory. These are widely used NFC tags across the globe and are available at quite low price.
Type 3 is based on FeliCa technology and is currently exclusively available from Sony. It has a larger memory (currently 2kbyte) and operates at a higher data rate (212kbit/s), which means it is suitable for more complex applications
Type 4 is fully compatible with ISO 14443A/B and is available from a number of manufacturers, including Philips (typical product example is MIFARE DESFire). It offers large memory-addressing capability with read speeds of between 106kbit/s and 424kbit/s – making it suitable for multiple applications.
Thx for the info where do I find NFC tags and how much do they cost?? Any user for a usefull low cost daily application of the technology???
Sent from my HOX InsertCoin using xda app-developers app
Hi,
I need to find out how to read the Unique NFC ID in smart phones.
Why?
We have an app. this app must identify the unique NFC ID, in order to use the NFC as an identification of the user. Probably quit similar to using the NFC in your phone to open doors? It is just very important that it is the unique ID and not just a info in the NFC.
Our reader will only read the unique ID.
The best solution
Seen from a users point of view, the best solution would be as this:
1. The user pushes an “Identify NFC button” in our app.
2. The app will send a code to the NFC device in the phone and receive the unique ID.
3. Next time the user swipe the phone at one of our NFC readers – the phone/user will be identified.
Any good advice/help?
Best regards
The NFC chip changes the UID with every read, unless it is in card emulation mode.
There is a thread somewhere here that may have the info you want.
Beamed from my Grouper
I would like to use the TecTile NFC tag to automate the pairing my Logitech Mini BT Boombox. Have anyone tried such thing before and share with me how to accomplish it? Thanks!
Hello guys!
I am looking for an app that will quickly pair my phone with another phone through bluetooth with NFC. Does this exist? Can I make a tag for this? Ideally I would want this to work with someone who doesn't have an NFC reader app (like trigger).
Put phones back to back and boom- the phones have pairing information for bluetooth.
Someone set me on a path here for an answer.
never will exist
typhoonikan said:
Hello guys!
I am looking for an app that will quickly pair my phone with another phone through bluetooth with NFC. Does this exist? Can I make a tag for this? Ideally I would want this to work with someone who doesn't have an NFC reader app (like trigger).
Put phones back to back and boom- the phones have pairing information for bluetooth.
Someone set me on a path here for an answer.
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Click to collapse
This app would never exist since for nfc to work the phone should be close since the signal is weak
Then how will the phones know that they are on each other by bluetooth...the phones wont know when to pair since bluetooth doesnt know the distance between the phones
NFC tags and OPPO Find 7 work just fine... apart from GPS. Using NFC Tools I tag GPS, root permissions granted, write, and when I put the phone to the tag I get "GPS enabled", but GPS is not enabled. Neither enable, disable nor toggle work. NFC Tasks is listed in SuperSU.
Is there a fix to this, or is it a problem with the phone?