[Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino Uno. If that wasn’t enough, he also uses a PS/2 keyboard for input and outputs analog VGA.

The Arduino Nano itself is the most basic and ... with a length of 68.6 mm and a width of 53.4 mm. With its ports, the Uno stands at a total height of 15.4 mm, although with all the I/O pins ...

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 ...

While the board operates at a logic voltage of 3.3 volts, unlike the 5 volts used by the Arduino UNO, it maintains compatibility with 37 pins, including a 22-pin HSTX FPC port for DVI video output, a ...