mos_8502 :verified: on Nostr: I use KiCad. This board takes the VersaTerm, a Pi Pico-based serial terminal board ...

I use KiCad. This board takes the VersaTerm, a Pi Pico-based serial terminal board which mostly implements colour VT100, and a wifi based modem emulator, by stripping away things I don't need and placing them together on a board that reduces costs vs. building separate devices.

Connect a PS/2 keyboard, VGA monitor, and two RS-232 serial cables, and you got yourself both a wifi-based modem and a full colour VT100 compatible serial terminal -- which is very handy, for #RC2014 type systems.