FAQ

Depending on the device, the NFC function can be found in different places. While NFC is always enabled on modern Apple devices, it can be enabled and disabled on Android smartphones.

Large NFC tags are not always automatically better than small ones. The optimum size depends on many factors, such as the reader or the intended use.

The NFC function can usually only be found via the quick access bar (on Android) and in the general settings of the smartphone (Android and Windows). However, this function is not available on iPhones. You can only test whether the iPhone is NFC-capable.

First, the reader sends commands and energy in the form of electricity to the NFC tag. The NFC chip of the NFC tag receives these through an antenna and is activated. Then the NFC chip interprets the reader's command and sends the necessary information back by antenna.

Near Field Communication (NFC) is a technology to exchange small amounts of data. There are two participants that communicate with each other. A distinction is made between active participants, which read out data, and passive participants, which contain stored information.

This always depends on the NFC chip used. There are NFC chips with a memory of only 38 bytes up to 8192 bytes. Therefore, the memory size of the chip should be taken into account when selecting an NFC tag. However, it is important to note that more memory is not automatically better.

You don't need to do anything else for this. NFC is already integrated into the iPhone's payment system. This is because the "Apple Pay" function is based on NFC technology. Apple Pay in turn uses the bank cards stored in the Apple Wallet.

There are many different possibilities. The easiest way to test NFC is to try to read or write an NFC tag yourself using NFC apps on your smartphone.

Different factors influence when an NFC tag starts to respond. The two most important factors are the antenna of the NFC tag and reader. Normally, NFC tags respond or the readers display the tag at a distance of 2 cm to 5 cm.

NFC chips and NFC tags can be included in many products - sometimes hidden and sometimes with appropriate instructions for use. For example, the following well-known items contain NFC tags: student ID card, ID card, smartphone, smartwatch, EC card, Nintendo Amiibo and some diabetes implants.

Yes, content can be protected against overwriting. The manufacturer usually sets a lock against overwriting for pre-programmed tags. If you want to write to NFC tags yourself, you can set up write protection in various NFC apps.

NFC tags are suitable for many applications and are simple to use. Data only needs to be retrieved by scanning. This makes the technology attractive for various fields of application. One example of this is the ID card with online function.

Due to the NFC chip inside the NFC sticker, it is possible to read data with NFC-enabled devices (smartphone, NFC reader) and, if desired, change it. Like other NFC tags (e.g. tags, cards), they can contain various information such as links, shortcuts or messages.

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.

Information can be stored on NFC tags in various data types. As only small amounts of data can be stored, some information must be outsourced. For example, a link that takes you to an external website.

Every NFC tag reader can read data, but not every NFC tag reader can write NFC tags. For this reason, NFC tag writer readers/writers exist that can both read and write.

Yes, these exist in theory. Typical NFC tags offer the option of setting a write lock so that they cannot be overwritten. However, there is no automatic write lock that is activated once an NFC tag has been written to and cannot be reset.

Yes, they also work on other surfaces. On the on-metal products there is only an extra separating layer to isolate the NFC tag from a metal surface. This layer is not actually necessary for non-metallic surfaces, but it does no harm either.

The reader is provided with a power supply (e.g. USB or rechargeable battery) and can thus send energy and commands to the NFC tag. The NFC tag then sends the required data back. Now the reader can display or further process the information.

There is no exact answer to this question. In practice, a range of about 2 cm is typically achieved. Depending on the size of the antenna of an NFC tag, however, the range can also change.

The size of an NFC tag can vary depending on your needs. The smallest NFC tags are quite small at 5-6 mm² and comparable to the size of a contracted human pupil, while the largest ones are as large as a bank card at 85mm x 55mm.

NFC tags communicate via radio waves and draw the required energy from them. Metallic surfaces interfere with this principle: if it is stuck to a metal surface or even encased, the NFC tag is no longer able to absorb the energy of the radio waves in such a way that it works.

In a nutshell: NFC stands for Near Field Communication and is a wireless communication standard that enables the exchange of small amounts of data between nfc-enabled devices.

NFC tags come in many different forms. The best known tag forms are stickers, NFC tags and NFC tags built into products. Commonly, NFC tags are built into plastic cards, smartphones, smartwatches, wristbands, or other custom products.

Although NFC is of great importance in everyday life, a uniform symbol for the technology has not yet been established. The most commonly used symbol is the so-called "N mark". It consists of a curved N, which stands for NFC.

An NFC chip is a small data carrier that contains stored information. It is often installed in an NFC tag and is required for data transmission because information has to be read from the chip. For example, it contains account information from the EC card when paying.

As the name suggests, an NFC tag reader is a device that can read the contents of an NFC tag. However, depending on the content and the use case, additional software is required.

An NFC tag always consists of an NFC chip and an antenna. It is important for data transmission with NFC because the chip contains information that is to be read and the antenna can return this information to the reader. NFC tags come in different forms.

Both Radio Frequency Identification (RFID) and Near Field Communication (NFC) ensure contactless data exchange, but differ in their communication range. The communication distance between two devices is significantly shorter for NFC than for RFID.

Near Field Communication (NFC) is based on Radio Frequency Identification (RFID). The electronics companies Sony and Philips took the RFID concept further and eventually developed NFC technology together.