SpringCard PC/SC is the reference application to work with SpringCard smartcard and NFC/RFID readers over a USB connection. Use this application together with Puck, Prox'N'Roll, and a lot of other SpringCard smartcard readers. Connect to a contact or contactless smartcard, retrieve its ATR, exchange ISO 7816 APDUsread/write NFC tags or [email protected] labels; explore and validate your own use cases. Once ready, download the complete source code from GitHub android-pcsclike-sample-usb project, and