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Programmable NFC Tags for Android: A How-To Guide

March 22, 2015
Programmable NFC Tags for Android: A How-To Guide

Automating Tasks with NFC Tags on Your Android Device

The NFC (Near Field Communication) capabilities of your Android phone extend beyond simple file transfers and mobile payment solutions.

By utilizing inexpensive, programmable NFC tags, you can configure your phone to execute specific actions automatically upon contact.

Leveraging Location-Based Automation

Consider strategically positioning NFC tags throughout your frequently visited locations.

Ideal spots include your bedside table, the vicinity of your front door, inside your vehicle, and on your workspace at the office.

Customizing Device Settings with a Tap

When your phone is tapped against, or simply placed near, these tags, it can intelligently adjust device settings to suit the environment.

This allows for a seamless and automated experience, optimizing your phone's functionality based on where you are.

  • For instance, a tag by your bed could activate Do Not Disturb mode.
  • A tag near the front door could turn on Bluetooth for your smart home devices.
  • In your car, a tag could launch your preferred navigation app.
  • At work, a tag could switch your phone to silent and open your work email.

This functionality provides a convenient method for streamlining daily routines and enhancing the usability of your Android phone.

Essential Requirements

NFC (Near Field Communication) technology offers a range of possibilities, and understanding its prerequisites is key. This guide details what you’ll require to begin utilizing programmable NFC tags.

Firstly, a compatible Android smartphone is necessary. The vast majority of contemporary Android devices are equipped with built-in NFC capabilities. However, budget-friendly models may omit this hardware to reduce production costs. A quick online search for your specific phone model, coupled with the term "NFC," will confirm its presence. Alternatively, navigate to the Settings menu on your device; the NFC option is typically located within the Wireless & networks section.

Crucially, the NFC hardware must be activated for the subsequent steps to function correctly. Secondly, you will need programmable NFC tags themselves. These can be readily purchased from online retailers such as Amazon.com at an affordable price point.

These tags operate without an internal power source, relying instead on the NFC reader for energy. When an NFC-enabled phone is brought into close proximity, the reader supplies power to the tag, enabling data transfer. The tags are designed to be written to, allowing you to store custom data directly from your smartphone.

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Utilizing NFC Tags

Related: A guide on leveraging Android Beam for seamless wireless content transfer between devices.

To begin, an application capable of programming the NFC tags is required. While Android itself doesn't provide a native solution, numerous apps are available on Google Play through a search for "nfc tags." These applications facilitate both writing data to and reading data from the tags, with many being offered at no cost.

For instance, the NFC Tools application allows users to write information onto a tag and subsequently retrieve any existing data stored on it. Installation of such an app is the first step.

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Once the app is open, select the specific data you intend to encode onto the tag. A useful feature is the ability to lock a tag, preventing future reprogramming.

This locking function can be beneficial if the tag is placed in a publicly accessible area. However, be aware that locking renders the tag immutable; the data cannot be altered afterward. Therefore, utilize this option only when absolutely necessary.

Following data selection, simply tap the tag against your phone’s NFC reader, typically located on the rear of the device. This action transfers the chosen data to the tag’s internal memory.

Finally, position the tag in a readily accessible location corresponding to the intended function.

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Leveraging NFC Tags

To begin utilizing NFC tags, a compatible application capable of interpreting the tag's data is required. For instance, if NFC Tools was employed to encode information onto your tags, the NFC Tasks application can be installed for functionality.

When a programmed NFC tag is read by your smartphone, the NFC Tasks app will decipher the embedded instructions and execute them accordingly.

Strategic placement of these tags is key. They can be positioned on a surface, allowing for simple phone contact to initiate an action. Alternatively, affixing them near doorways enables automated tasks upon entry or exit.

The potential applications are vast and adaptable to individual needs. Consider automating frequently used functions to streamline your daily routines.

Practical Applications of NFC Tags

For example, if you consistently require a one-hour timer for laundry, an NFC tag can be programmed to initiate this timer and placed conveniently near your washing machine. A simple tap or placement of your phone will then activate the timer.

Similarly, if you often connect your phone to a Bluetooth keyboard, an NFC tag affixed to the keyboard can automate the pairing process with a single tap.

Furthermore, you can configure a tag to contain your Wi-Fi network credentials. Guests can then effortlessly connect to your network by tapping their phones against the tag, bypassing the need to search for the network and enter a password.

However, this requires guests to have a compatible application installed on their devices.

Despite possessing NFC hardware, Apple’s iPhone 6 currently restricts its use to Apple Pay transactions. Application access to the NFC functionality is presently unavailable.

Future iOS updates may expand NFC capabilities, but for now, this limitation applies. Windows Phone offers some level of NFC support, leaving iPhone users as the sole platform without broader NFC functionality.

Image Credit: Beau Giles on Flickr

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