The board itself also has some differences from the original Arduino Uno. First of all, it has a USB type-C port, which is definitely a bonus. Secondly, it’s simpler: No USB-UART (which also ...
[Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino ... The 16u2 is normally used as the Arduino Uno’s USB interface. The only external ...