Simple NFC Reader/Writer

This application makes it easy to read and write NFC tags. It only supports the NFC Type 2 standard NTAG 213/215/216 (NDEF compatible). (The sticker-like products sold cheaply by PC peripheral manufacturers are likely to be compatible.) Since it is intended for intentional use in experiments or technical verification before full-scale development, read and write operations are performed with the application running in the foreground. Holding the tag over the device without this operation will not result in a read.