To supplement my post on Reddit, here's a video demonstration of my RC2014 build!

0:00 introduction and Pi Zero terminal
0:56 RomWBW Bios Posting / Booting ZP/M
4:35 SC129 Digital I/O triggering relay module
5:25 FLOCK Floppy disk controller
7:57 YM2149 Sound Card (See other videos on my channel for direct feed audio from this card)
9:05 8x8 LED Matrix module
10:30 More about RomWBW / booting BASIC with no CF
11:08 ESP8266 WiFi card Module / BBS Connection
15:00 explanation of main serial bus / keyboard input, and 2nd serial / clock
16:00 Conclusion

[ Ссылка ]

A full writeup is in that reddit post for the most part, or on VCF in the homebrew computing section:

[ Ссылка ]

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