Since you are reading this, I am guessing that you are new to NFC technology and fascinated by its concept. Read/Write mode: In this mode NFC device can read or write information from NFC tag. For eg. you can program a NFC tag to turn off/on WiFi from your NFC device and then every time you place your device over that tags, it will turn off and on the WiFi alternately. All you need to do is turn on NFC by going into your device setting and it will automatically detect other NFC device or tags.
NFC supported smartphones have special hardware chip built into it. Right now there are not as many smartphonesupporting NFC as there are Bluetooth supported device. Companies are now manufacturing equipment like NFC speaker, keyboard, and even light bulbs that could be control with NFC. NFC tags are passive in nature which means that don’t have their own power supply but they withdraw power from the nearby NFC device. Therefore this guide will help you decide how to buy NFC tag.
But this is not it, NFC does have few drawbacks like not all the device available in the market has built-in NFC support. Smart posters are made by integration of NFC tags and movie posters to make it more interactive for the users. No need to carry your purse, with NFC paypass you can pay directly from your NFC enable smartphone. I have program my NFC tags to toggle Wi-Fi so when I need to concentrate on some task, I place my phone over the NFC tag to turn of Wi-Fi and when I my finish completing my tasks, I placed it back again to come back to normal mode. NFC works on phenomenon of inductive coupling by induce small amount of current to another NFC device.
Another cool application of NFC is Start up your pc using NFC by waving your smartphone on your laptop both under the same network. After finishing this article you will have the clear idea on How NFC works, What technology does it use and What happens when you bring your device near NFC tag. Now when another secondary coil is place near this magnetic field an electricity is induce in it. And the secondary coil which is NFC tag in our case, start working by transmitting information. For example if you bring two NFC supported device together than they will both act as active devices.
And since they have their own power source they respond to the other NFC device with their electromagnetic energy. For example NFC tags, they don’t have battery or any other power source built into it. This is what happens when you bring NFC device closer to passive CXJ NFC tags. This process happens very fast (106, 212 or 424 Kb/s) without even asking the user to select the specific application, which is the key feature of NFC technology. This mode is use when your smartphone interact with NFC payment support system.