Introduction to NFC

Chamu Goli & Prateek Aggarwal Android Team -India

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Origin What is NFC How NFC works What can you do using NFC What is an NFC tag NFC Implementation Demo

http://developer.android.com/guide/topics/connectivity/nfc/index.html

Agile ManifestoAgenda

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In 2004 Nokia, Philips and Sony established the Near Field Communication (NFC) Forum In 2006 Initial specifications for NFC Tags In 2006 Nokia 6131 was the first NFC phone In 2010 Samsung Nexus S: First Android NFC phone shown Available from GingerBread in Android

Origin

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Short range wireless (1-4cm typical, 10cm theoretical) Speed (106 to 424 kbps) Low friction setup (no discovery, no pairing) Passive targets ( no batteries) Operation frequency is 13.56MHz on ISO/IEC 18000-3 Consumes less power

What is NFC?

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Reader/Writer Peer-to-Peer Card Emulation

NFC Modes

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How NFC works

NFC is based on RFID technology that uses magnetic field induction to enable communication between electronic devices in close proximity.

For two devices to communicate using NFC, one device must have an NFC reader/writer and one must have an NFC tag.  The tag is essentially an integrated circuit containing data, connected to an antenna, that can read and written by the reader.

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Download music or video from a smart poster.

Exchange business cards, Pay bus or train or air fare,   Parking Tickets, Pay at Kiosks, Pay and purchase at Point of Sale Terminals

Access controls in office, hotels, airports ,home etc.

What can you do using NFC

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NFC tags are passive devices that can be used to communicate with active NFC devices (an active NFC reader/writer)

Types of Tags: Topaz Mifare Ultralight Sony Felica Mifare Classic

What is an NFC tag

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Tag Standard Read-Write capable Read-only Memory Communication speed

NFC tag factors

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Writer Reader Changes in Manifest file

NFC Implementation

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Get NFC Adapter Enable foreground dispatch Check whether the tag is writable Create NDEF Message with data to be written Write the message to the Tag

NFC Writer

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NFC Reader

Add intent-filter in the manifest Get the Intent Check the MIME type Get the NdefMessage from the intent Get the Ndefrecords from the NdefMessage

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Add Permission (android.permission.NFC)

Add uses-feature (android.hardware.nfc)

Add intent-filter for the ReaderActivity

<intent-filter>       <action android:name="android.nfc.action.NDEF_DISCOVERED" />     <data android:mimeType="application/vnd.mutualmobile.easyinventory" />     <category android:name="android.intent.category.DEFAULT" />

</intent-filter>

Changes in Manifest

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Easy Inventory POC

Launchpad URL :****************SVN URL :********************

Demo

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THANK YOU