NFC in the phone is a high-quality wireless communication technology with a small impact radius that allows you to communicate without information between two gadgets. NFC is based on RFID, this is radio frequency recognition, which is a method of mechanically fixing an object.
What is "NFC"?
NFC is a technology without a contact, able to read and send information from devices at not very long distances. The abbreviation stands for "Near Fild Communication". It is based on the principle of the exchange of radio signals identical to Blutuz, but there is a significant difference. The Bluetooth transmits data at long distances, several hundred meters, and for NFC it takes no more than 10 centimeters. This technology was developed as an extension for contactless cards, but it quickly gained fame, and developers found it used in other devices.
There are three ways to use this technology in cellular:
- Reading mode;
- emulation, when the device works, as a payment card or pass;
- P2P mode, when information is exchanged between phones.
The chip is stored in a cell phone, and is used as a means of payment, it is possible to book tickets, pay for car parking or travel to the metro, and ensure admission control. Thanks to the technological processes of payments without contact, MasterCard PayPass and Visa PayWave cards with integrated antennas have appeared, which takes into account the role of NFC, developed applications for android-smartphones.
What is NFC in a smartphone? With close contact, a couple of devices are connected by magnetic field induction, when close contacting loop antennas form the educator. Under the action of NFC, frequencies in the spectrum of 13.56 Megahertz are allocated, and the information transfer rate is capable of reaching 400 kilobits per second. The device operates in two modes:
- Active . Both gadgets are provided with a power source and transmit the information in turn.
- Passive . The power of the field of one of the devices is used.
Which phones have NFC?
NFC in the phone gives a chance to pay for purchases by touching the cellphone to the terminal, this is a kind of bank card in the cell. Six years ago, there were few devices supporting NFC, but now chips are equipped with tablets, clocks and other devices. What phones have this device:
- Apple - all models of iPhones;
- Sony-the order of Xperia S, L, Z;
- Samsung Galaxy S;
- HTC #
- LG;
- Motorola;
- Nokia-Lumia.
How do I know if the phone supports NFC?
How to check NFC, is it on the phone? There are several ways:
- Remove the back cover of the smartphone and inspect the battery of the battery, it should be labeled "NFC".
- In the settings, find the "Wireless Networks" tab, click on "More", if technology is available, a line appears with the name of the technology.
- Hold your hand over the screen, open the curtain of notifications, where this option will be registered.
If there is no NFC, what should I do?
NFC in the phone - what are these modules? There are such basic types:
- sim cards;
- external devices;
- microcircuits;
- NFC-modules;
- stickers.
The NFC module can be purchased together with the phones, but they are on sale and separately. Stickers are attached to the hull, they come in two types:
- Active. Provide communication via the Wi-Fi / Bluetooth channel, but consume a lot of energy, so frequent recharging is required.
- Passive. Do not communicate with the phone and do not write it to the device through the mobile communication channels.
How to install NFC-chip in the phone?
If it is not originally on the device, the NFC module for the phone can be purchased and installed. There are two options to choose from:
- NFC-simka, they are now sold by many mobile operators.
- NFC antenna. If there is no near field, this is the best way out. In the salons of communication, such devices also exist, they are glued to the sim card, under the cover of the cell phone. But there is one downside: if the back cover is not removed or the hole for the sim card is side, you can not install such an antenna
How to enable NFC?
The device with NFC can be not only a purse, travel and discount coupon, special tags also help to read data about goods in stores, about any objects in museums and galleries. How does it turn on?
- In the settings, select "Wireless networks", then - "More".
- The necessary inscription will appear, mark "Activate".
If your smartphone has an NFC chip, you need to activate Android Beam:
- In the settings, click the Advanced tab.
Click on the NFC-switch, the android function is activated automatically. If this does not happen, you need to click on the "Android Beam" tab and select "enable".
- To communicate without fail, you need to make sure that both phones support NFC and Android Beam, you need to activate them first. The scheme of actions is as follows:
- Select the file to transfer.
- Press the back covers of the phones together.
- Hold the device until a beep that confirms that the exchange is over.
Regardless of the type of file, NFC technology assumes the following information transfer algorithm:
- Keep the device only the reverse side to each other.
- Wait until they find each other.
- Confirm the transfer request.
- Wait for the message that the process is completed.
NFC Features
The NFC function in the gadget gives you tremendous advantages:
- mobile touches - and data transferred;
- wide range of applications;
- technology meets industry standards;
- Low transmitter performance and exposure radius guarantee safe transmission.
NFC in the phone or other devices - a very convenient thing that you need to know for the correct application of this device?
- Bluetooth accessories also support NFC, one example is the Nokia Play 360 column.
- To make a mobile virtual wallet, you must install and configure the Google Wallet application.
- NFC-tags are allowed to be used for programming through applications, they can activate the navigator, transfer the cellular to silent mode and even wind an alarm clock.
- Through NFC, it's easy to transfer a payment to a buddy, make it a friend, and even jointly take part in the game for a large number of users.