NFC Tag - Clear Diamond (MIFARE Classic 13.56MHz/1K S50)

This is a cool MiFare Classic keychain fob. It's commonly used for electronic locks or customer ID. The tag has an NXP S50 chip and an antenna. It gets power passively from the reader/writer when it's just a couple of inches away. It can work well with NFC Shield. Specification: 1 KiloByte (8 KiloBit) non - volatile EEPROM storage, built - in encryption engine with a 48 - bit key, a 4 - Byte unique identifier on the chip, and operates at 13.56 MHz frequency.

Using this NFC tag is super easy. First, make sure your reader/writer is working properly. Then, just bring the tag within a couple of inches of the reader/writer and it will start working. You can use it for things like unlocking electronic locks or for customer identification. When it comes to maintenance, keep it away from water and extreme temperatures. Also, don't bend or damage the tag as it may affect its performance. If you're using it with an NFC Shield, ensure they are compatible and follow the setup instructions. That's all you need to know to get the most out of this tag.