Creates a smartcard simulation using an Attiny 85
Connections:
- VCC to VCC
- GND to GND
- RST to RST (PB5)
- I/O to PB4
Currently it can only generate an ATR
To build, use the "make build" command. Then, use the "burn.sh" script to write the firmware to your attiny85
TODO:
- add support to send and receive APDUs