When an Android device registers a “new tag scanned” notification, it signifies that the device has detected a Near Field Communication (NFC) tag. This typically occurs when the device is held near an NFC-enabled object, such as a poster, card, or product. The tag contains data that the device reads, which can then trigger an action. As an example, scanning an NFC tag on a poster could direct the device to a website containing information about an event, or a tag on a product could provide details about its origin and specifications.
The capability to interact with NFC tags offers a convenient method for exchanging data, automating tasks, and simplifying interactions. It eliminates the need for manual data entry, streamlining processes such as accessing websites, connecting to Wi-Fi networks, or making payments. NFC technology has evolved from early radio-frequency identification (RFID) applications and has found increasing adoption in mobile devices and payment systems due to its short-range, secure communication abilities.