Controls your C64 retro computer. Select Kernal, BASIC and Charset. Select devicenumber of internal SD2IEC drive.

This is Hardware Extension for a C64 retro computer. (The C64 is a retro hardware from Commodore)

• an old C64 computer
• optionally a internal SD2IEC drive
• a multi ROM adapter (for example REPROM64)
• an arduino Nano [3€]
• an OLED 128x64 display [3€]
• optionally an I2C LCD display [3€] (16x2, 20x2, 20x4)
• a Rotary Encoder [1€]

• Arduino Workbench
• Arduino Lib: LCD Menu Lib 2: https://github.com/Jomelo/LCDMenuLib2
• Arduino Lib: U8g2lib: https://github.com/olikraus/u8g2

• reset the C64
• select one of 4 Kernals (and autoreset)
• optionally select one of 2 BASIC (and autoreset)
• optionally select one of 4 Charset
• optionally select device number from 8 Go 11 for an internal drive
• Info Display

This is one of the best multi ROM adapter for a C64. The Arduino can directly control this adapter.

Link: http://www.henning-bekel.de/reprom64/