The amazing multi-processor 8-bit microcomputer, featuring Z80, 6502 and AVR processors. Built with CPLDs, CERBERUS 2100™ is fully programmable even with respect to its hardware, at the individual gate and flip-flop level.

A curated list of minitel resources

Datapoint 2200 Schematics and Documents

Datapoint 2200

A Raspberry Pi Pico (RP2040)-based 2114 SRAM Emulator for the Busch 2090 Microtronic Computer System

ZX81 External 16K/32K RAM interface with WRX hi-res support

External MultiROM Interface based on EEPROM W27C512 for ZX81

Amplifier from DIY magazine for ZX Spectrum

External ROM interface with partial display logic for ZX81

A utilty to test an Amiga (A500) keyboard using an Arduino Uno

Another custom ROM cartridge for ZX Interface 2, supporting 256kb EPROM with manual ROM selection using switch

UTF-8 <-> KOI-7 encoder/decoder.

💾 BIOSes for EPoX 9NPA+ Ultra