Near field communication: Difference between revisions
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== Introduction == | == Introduction == | ||
According to [https://en.wikipedia.org/wiki/Near_field_communication Wikipedia] (4/2015), NFC is somewhat similar to Bluetooth, but works at much smaller distances (< 10 to 20 cm). NFC is much slower than Bluetooth but requires less energy . NFC is compatible with existing passive RFID (13.56 MHz ISO/IEC 18000-3) infrastructures. | According to [https://en.wikipedia.org/wiki/Near_field_communication Wikipedia] (4/2015), '''Near field communication''' (NFC) is somewhat similar to Bluetooth, but works at much smaller distances (< 10 to 20 cm). NFC is much slower than Bluetooth, but requires less energy . NFC is compatible with existing passive RFID (13.56 MHz ISO/IEC 18000-3) infrastructures. E.g. in order to play with this technology, you should have a cellphone, then download an end-user app for writing something on a cheap RFID tag. | ||
Most 2014/15 cellphones include NFC support, but Apple only for iPhone 6. The most typical use case | NFC has been invented in 2002 by NXP Semiconductors and Sony and in 2010, Google launched the Nexus S, the first Android NFC phone. In 2011, Google launches Google wallet. Most 2014/15 cellphones include NFC support, but Apple only for iPhone 6. The most typical use case are [https://en.wikipedia.org/wiki/Contactless_payment contactless payment] systems. | ||
There are two main devices which translate to possible modes of operation: | There are two main devices which translate to possible modes of operation: | ||
Revision as of 13:48, 22 April 2015
Introduction
According to Wikipedia (4/2015), Near field communication (NFC) is somewhat similar to Bluetooth, but works at much smaller distances (< 10 to 20 cm). NFC is much slower than Bluetooth, but requires less energy . NFC is compatible with existing passive RFID (13.56 MHz ISO/IEC 18000-3) infrastructures. E.g. in order to play with this technology, you should have a cellphone, then download an end-user app for writing something on a cheap RFID tag.
NFC has been invented in 2002 by NXP Semiconductors and Sony and in 2010, Google launched the Nexus S, the first Android NFC phone. In 2011, Google launches Google wallet. Most 2014/15 cellphones include NFC support, but Apple only for iPhone 6. The most typical use case are contactless payment systems.
There are two main devices which translate to possible modes of operation:
- Active chips. These can work in either target (see below), initiator (read or write) or peer to peer mode.
- Passive target chips, also called "tags" (allows to transfer data to an initiator).
Active NFC devices can read data from tags. Some tags are rewritable. Some are crypted. There are standards, but target chips also can be custom encoded.
Uses
Some general use cases ares:
- Wireless payment
- Bootstrapping other connections
- Social networking
- Intenty and keys
- Gaming, (e.g. virtual treasure hunts or the crytped Amiibos)
In education, NFC tags can be used in a similar way as QR tags.
Tools
- End user software for Android devices
... there are many more
- Indexes
Links
- Introductions
- Technology Tutorials
Field Communication Tutorial], by Ian Poole, radio-electronics.com. Very detailed, technical.
- End user tutorials
- How to encode NFC tags (tutorial for the NFX tag writer app).
- Programming
- Get started with NFC Android, May 2012.
- In education
- How can I use NFC to engage my students? JISC Inform,
- How to use Near Field Communication to engage your foreign students by Simon Wardman, 5 September 2013, Jisc blog.