The command above will install a new React Native boilerplate at the location of your choice, so you can get started writing your code quickly. Run the command below to install the iOS dependencies using pods. First, let’s initialize a new React Native project using the command below: npx react-native init NFCTutorial Now that we understand the basics of NFC tags and NFC tag readers, let’s learn how to write the React Native code that reads and writes an NFC tag. NFC tag readers require a power source to pass an electric current through their coil to the NFC tags, generating a magnetic field around the reader as a result.ĭue to Faraday’s law of induction, bringing a tag within this magnetic field’s range results in inductive coupling between the two coils, which is when the information exchange occurs. Previously, we mentioned that NFC tag readers serve as the power source, reading information from passive NFC tags. NFC readers can only connect to one NFC tag at a time, minimizing accidental transactions. The information exchange is completed when the reader validates the information. Instead, they receive power from the device that reads them.Įssentially, when an NFC reader is brought within ten centimeters of an NFC tag, the NFC tag becomes energized, transmitting any data stored within its microchip. Due to magnetic induction, NFC tags do not have a power source of their own. We can use NFC tags in applications where we need to exchange digitized data quickly. NFC tags contain storage memory and a radio chip. Check if the current device has NFC support.How to read an NFC tag with React Native.In this article, we’ll cover what NFC tags are and how we can use them with React Native. You can transfer data with just a tap, which we’ll demonstrate later. The biggest advantage of NFC is that it doesn’t require pairing or any manual input to establish a connection. With NFC tags, you can easily transfer small amounts of information, like app URLs, encrypted bank accounts, and more. NFC tags are stickers or wristbands embedded with tiny microchips that store information and can be read by NFC readers within ten centimeters. Near field communication, or NFC, allows for data to be transferred between devices in close proximity to each other. Chiamaka Umeh Follow A frontend developer with a passion for designing highly-responsive user interfaces for JavaScript-based web and mobile apps using React and React Native.
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