![]() The header defines the length and type of the message, while the payload is the data to be transferred. NDEF stands for NFC Data Exchange Format, which is a basically a message consisting of a header and a payload. These tags are all pre-formatted to store NDEF messages. ![]() The most common tags at this time are called NTAG215, although there are three other types available. Here’s an Amazon link to those tags.Ĭloseup photo of an NTAG215 NFC sticker (actual diameter is 3.5cm – 1.38in) For the purpose of this article, I bought 11 tags for about $0.73 each. The tags are very inexpensive, costing as little as $0.10 each in large quantities. The reading and writing device (in this case, an iPhone) initiate communications. The tags do not require power of any sort. NFC tags are small flexible circuitry stickers containing an antenna and memory. First, let’s look at NFC tags in more detail. You’ll need to write to an NFC tag to get it to do something when the iPhone reads it. That’s also why you need to come quite close to a payment terminal when using Apple Pay.įortunately, there are many third-party apps available for writing and reading NFC tags. ![]() That’s much less than the 10 m (33 feet) range or so provided by Bluetooth. The “Near-Field” communications is truly “near”, just 4 cm (1.5 inches) of range. That’s similar to the prompt displayed when setting up an AirTag. The prompt is a “scanning sheet”, and you’ve probably seen one before: NFC requires an app on the iPhone that displays a prompt telling a user to hold the iPhone near one or more NFC tags or devices. Apple Human Interface Guidelines, Near Field Communications For example, a user can scan a toy to connect it with a video game, a shopper can scan an in-store sign to access coupons, or a retail employee can scan products to track inventory. iOS apps running on supported devices can use NFC scanning to read data from electronic tags attached to real-world objects. Near Field Communication (NFC) enables devices within a few centimeters of each other to exchange information wirelessly. In this post, I’ll show you how you can do some useful and fun things with inexpensive NFC tags, your iPhone, and an app.Īpple’s Developer website has a great explanation of NFC: NFC is used for the setup of Apple devices by placing them near each other, as well as for Apple Pay. NFC has been in each iPhone since iPhone 6. You may have heard the term NFC (Near-Field Communications) used when describing iPhone features.
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