0.1.3

Update mode arg.

0.1.2

Fix import.

0.1.1

Revise python version dependency to 3.7.3.

0.1.0

Pip installable code:

• https://www.waveshare.com/wiki/PN532_NFC_HAT
• https://www.waveshare.com/w/upload/6/67/Pn532-nfc-hat-code.7z

Examples have been modified as package endpoints.