Manufacturing
You can pay for groceries securely, exchange photos with a friend, discover special retail offers, keep track of fitness stats, enjoy an interactive exhibit, or expedite travel. New uses for NFC are being developed every day.
NFC
NXP’s NTAG213 chip is the most popular NFC chip for use with NFC tags and mobile phones. It’s full-featured and has more than enough memory for most applications and web addresses. Therefore, the costs associated with the mass production of this chip and tags with this chip mean that it’s a great value chip.
The location of a phone’s NFC touch-point or “sweet spot” varies by manufacturer, although it is typically found on the back or top edge of the phone. To determine where the NFC touch-point is positioned on your specific phone, please consult your owner’s manual.
NFC Tags work properly between -20° and 70° Celsius / between -4° and 158° Fahrenheit.
NDEF (NFC Data Exchange Format)
The NFC Data Exchange Format (NDEF) is a standardized data format that can be used to exchange information between any compatible NFC device and another NFC device or tag. The data format consists of NDEF Messages and NDEF Records. The standard is maintained by the NFC Forum and is freely available.
Source: Adafruit
An NFC tag is an unpowered microchip that is embedded in a product label, retail display, a smart poster, or most places where you see this symbol (N-Mark). With just a tap from your smartphone or other NFC-enabled device, NFC tags deliver enhanced product information, activate special offers, and power interactive experiences at museums or sports events.
Whenever you see the N-Mark symbol, it means, “tap here” to learn more or to activate an NFC transaction or experience. You’ll find this symbol on NFC-enabled devices, in apps that support NFC, and on touchpoints around town and around the world.
NFC stands for Near Field Communication. NFC is only activated when your phone or other smart device is right next to a terminal or an NFC tag so you have complete control over what you choose to connect to.
NFC (Near Field Communication) technology makes your smart device smarter. It allows you to connect to a world of convenience, information, and enhanced experiences with just one tap.
You can pay for groceries securely, exchange photos with a friend, discover special retail offers, keep track of fitness stats, enjoy an interactive exhibit, or expedite travel. New uses for NFC are being developed every day.
On NTAG21x, there are 4 bytes allocated to the password.
The range is 00 00 00 00 to FF FF FF FF, which means there are 4 294 967 296 possibilities.
For example, on an NFC reader which takes 200ms to communicate with the chip, it will take approximately 27 years to brute force the password.
Probably! Android devices have supported NFC since the early days of the smartphone, but Apple chose to withhold support on the iPhone. However, when the company unveiled Apple Pay, a contactless payment system enabled by NFC, they began including these wireless chips on iPhones.
Before iOS 11, the company limited its use just to Apple Pay. However, iPhone models from the iPhone 7 and newer running iOS 13 and above now support contactless payments, the ability to read NFC tags, and the capability to write them, too.
This brings both mobile platforms into step with one another, allowing you to use NFC on most Android smartphones or iPhone.
The consumption of the NFC sensor is almost irrelevant. In addition, it consumes battery only when it is in use, similar to GPS. This feature allows you to leave the NFC sensor-enabled, with no problems for the consumption of the battery.
Forever. Or at least until they are destroyed or damaged. The information can be rewritten, but also protected or encrypted.
Bluetooth technology eliminates the use of cables to connect to your devices to one another. NFC technology is designed to work with Bluetooth. A simple tap will pair NFC and NFC-enabled Bluetooth devices for ongoing connectivity.
Your Smart Object endpoints can be easily updated from any web-connected device. Login to your 3DNFC account, go to My Account/Account details-Update NFC object.
During setup, go to your setting menu, look for NFC (sometimes listed under “more”), turn it on, and you’re ready to go. There are no apps to download or codes to enter. And NFC does not drain your battery.
No, NFC Tags do not require power. They are in fact triggered by the magnetic field of the NFC sensor. NFC Tags are, from this point of view, potentially eternal.
Only some NFC chips support hardware encryption encoding. Below are the most common chips, with relative cryptography supported.
MIFARE® DESFire® (DES, 2K3DES, 3K3DES, AES)
NXP ICODE® DNA (AES 128 bit)
MIFARE Ultralight® C (3DES)
NTAG® 4xx DNA (AES-based CMAC)
MIFARE Classic® (not safe, not recommended)