A couple of new Arduino Nano’s arrived in the mail today so decided what better time to build a modern retro computer about as powerful as a ZX80 Spectrum from 1980. Total cost about $40.
The Nano on the left runs the Tiny BASIC interpreter, audio out and PS2 keyboard control, and the Nano on the right takes care of the video output via a composite connection. However, the large font on a 40 inch TV is a bit overwhelming.
A total 999 bytes available for programming fun so I outputted some 8-bit sounds.
Not sure what to do next with this, but given the small amount of memory it will take sound planning.