What is an NFC tag?

Knew about NFC but didn't about NFC Tag?

Well, Tech Aficionado is here with an interesting article making you aware of how underrated this technology is.


To begin with, NFC stands for Near Field Communication, from the name itself is very obvious that it needs to be in a nearby range to communicate, mostly contact. It is a wireless service to transfer data. NFC uses an electromagnetic field to transfer the data and the speed of data transfer is 106 kbps to 424 kbps which is quite slow as of today. Both the device must have an NFC feature in order to connect and any sort of data like audio, video, etc. be transferred. The range is a maximum of 4 cm between the devices.


What is NFC mode?

There are various ways in which NFC can communicate depending on the device, there are a total of three modes based on its use:-


  • Peer to peer mode

  • Read/Write Mode

  • Card Emulator Mode


Peer-to-peer mode- Both devices need to be active in order to communicate in this mode.


Read/write mode- One-way data transmission is done and here comes the underrated technology i.e. NFC tags. I'll be explaining NFC tags in detail.


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Card emulator mode- You can use NFC as a card as in credit cards, debit cards, and much more. Basically, the feature used to sway and pay without entering a PIN is NFC, that is a peer to peer mode in which both the device has NFC in it.



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Now we'll talk about the elephant in the room, hence the NFC tag.


After complete knowledge of the NFC tag, I wondered how useful technology it is and yet no one is talking about it.


The NFC tags are quite small in size and can be extensively used for various purposes.


These tags are completely customizable and can be written with any sort of code that performs a specific set of operations.


For example, assume that I have an empty tag (empty tag means the one which doesn't have any code written on it) and use an app to write a code that performs a function that as soon as the NFC tag is in contact, it goes to silent mode and the brightness is brought to the lowest. Once I've written this code, each time your phone gets in contact with that specific NFC tag it'll perform the operation. Now this operation can be a number of operations, and more the number of operations more the amount of code which ultimately will require high data storage in the NFC tag, yes, you read it right these tags have memory in them, a typical NFC tag has around 20 kb of space.

Don't you think that's just AWESOME!!

How do I write the code?

Now coming to the coding part, you need to be an actual coder to write the code, you can use an app called "Trigger" that can be used to, read, write, erase or lock the NFC tag


Here's the link to the app[: https://play.google.com/store/apps/details?id=com.jwsoft.nfcactionlauncher

This is a simple-to-use application for Android. Now here can you buy these NFC tags?

Here's the link: https://amzn.to/3g29Zmu


Hope you liked the post and if you did, make sure to hit the like button and comment on the post if you like it. Do share it with your friends and family.

Easy up Tech - Tech Aficionado


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