These RFID coins are 25mm across, about the same size as a US quarter.
They work with most phones, including iPhone! You can also use our RFID kit to talk to it with your Arduino or Raspberry Pi.
You can store business cards, links, WiFi passwords, bluetooth pairing info, email, telephone numbers, geo location, text, SMS and even launch an application when tapped by a phone.
- Frequency: 13.56MHz
- NFC Forum Type 2
- ISO/IEC 14443A
- Memory: 540 bytes
- User Memory: 504 bytes
- Size: 25mm diameter x 0.8mm