Memo-1: A Custom 6502 Computer Built from Scratch Using a Minitel Terminal

Memo-1: A 6502 computer built from scratch, using a Minitel as its terminal

I built the Memo-1, a simple 65C02-based computer for fun and learning, featuring 32K RAM and a 6551 ACIA. The system connects to a Minitel 1b as its terminal and includes support for Atari joysticks and external ROM slots. Users can boot into WOZMON or MS-BASIC directly from the startup menu, with full build instructions and source code available on GitHub.

The Minitel driver is the src/minitel.s file (yes I know, I'm the exentric one of the family).
  1. drivers99

    Very cool. No surprise when I saw Ben Eater acknowledgement at the bottom. I'd humbly suggest including the CAD (KiCad?) files to go along with the gerbers.

  2. zorobo

    The Minitel can be used as a modem too, albeit a cumbersome and very slow one: 1200bps down, 75bps up. Bps as in bits per second.

    That’s how I connected to bbses and nntp before I finally got a 2400bps real modem.

    Nice project, and how far we’ve come !

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2026-07-30