A Raspberry Pi Pico (RP2040)-based 2114 SRAM Emulator, SD Card Interface, and Multi-Expansion for the Busch 2090 Microtronic Computer System from 1981.
Features:
- SD card interface
- Comfortable UI
- 16 user memory banks
- Mnemonics display
- Hardware extensions: speech synthesizer, Real Time Clock (DS3231 RTC), sound, ASCII text and graphics OLED display
- Extended op-codes for driving these extensions
Demo Videos:
PicoRAM 2090 Final Demo Video
PicoRAM 2090 Prototype Full Feature Demo
GitHub:
GitHub Repo PicoRAM 2090
Hackaday Page: