How does an NFC tag writer work?
NFC tag writers are responsible for writing information to NFC tags. But how does that work exactly?
NFC tag writers can write NFC tags with various data, but they need an additional app or software for this. First, the necessary data is created by the software. In order to successfully save this data to the NFC tag, the tag must then be held up to the NFC tag writer.
Existing software for writing NFC tags on the PC are for example our NFC21-Writer and GoToTags. For smartphones, there is a suitable NFC writer app for each operating system:
- Android: NXP Tag Writer, NFC Trigger
- iOS: NFC 21 Tools
- Windows: Nokia NFC Writer
A simple example of describing an NFC tag is adding a phone number. With the NXP Tag Writer app for Android, a phone number can be added, thanks to a predefined function. When the function is selected, an input window appears to name the phone contact. The corresponding number can then be entered. Finally, an NFC tag, e.g. an NFC sticker, is held up to the phone and the information is stored there. If you use iOS, you can select the type "Phone number" under "New tags" in our NFC21-Tools app to store the tag.
If you want to call your friend, you don't have to tediously unlock your phone, open an app, and then manually select the call. Instead, an NFC sticker can be placed behind a physical photo of a friend. If the phone is then held up to the photo, the call / call option is automatically displayed. A convenient and more personal way to contact your loved ones. :)
And larger amounts of data?
NFC chips only have a limited amount of memory. An online service is therefore required. Large amounts of data are no longer stored on the NFC chip itself, but in the online service. The NFC chip simply contains a link that leads to the corresponding online service. This means that larger volumes of data can be outsourced.
First published: 31.10.2023 / Updated: 31.10.2023 2023-10-31 2023-10-31