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Rewrite BBS page around dhansel's WifiModem and DarkForce! BBS

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retro/atari-networking-bbs/index.njk
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---
title: "Getting a 40-Year-Old Computer Online: Atari ST Networking and BBS Access"
title: "Dialing Into BBSs with a Wi-Fi Modem on the Atari ST"
section: "retro"
tags: "retro"
description: "Connecting an Atari ST to the modern internet and to dial-up-era bulletin board systems, warts and all."
description: "Using dhansel's WifiModem on the Atari Mega ST 4 'Low' to dial into telnet bulletin board systems with terminal software, no real phone line required."
layout: base.njk
parent: "/retro/"
---
<h1>Getting a 40-Year-Old Computer Online: Atari ST Networking and BBS Access</h1>
<h1>Dialing Into BBSs with a Wi-Fi Modem on the Atari ST</h1>
<div class="detail-content">
<p>The Atari ST predates the consumer internet entirely, yet a surprising amount of retrofitted networking hardware exists to get one talking to a modern network, or to a bulletin board system straight out of the dial-up era.</p>
<p>My <a href="/retro/atari-mega-st-fleet/">Mega ST 4 "Low"</a> uses a ready-built Wi-Fi modem based on <a href="https://github.com/dhansel/WifiModem" target="_blank">dhansel's WifiModem</a> firmware, an ESP8266 module that connects a serial port to Wi-Fi. With it, the machine can dial into telnet-based bulletin board systems using its own terminal software, recreating the dial-up BBS experience without a real phone line.</p>
<h2>The Toolbox</h2>
<h2>The WifiModem</h2>
<p>dhansel's WifiModem is firmware for the ESP8266 that makes a serial port talk to Wi-Fi. It does this in two ways, and they're mutually exclusive:</p>
<ul>
<li><strong>STinG</strong>, the classic TCP/IP stack for TOS, still the backbone for anything network-related on an original machine, from Telnet sessions to FTP transfers.</li>
<li><strong>ESP32-based Wi-Fi modules</strong>, small serial-attached boards that emulate a modem over Wi-Fi. Results vary wildly between firmware projects: one variant handles HTTP downloads fine but can't do Telnet, another supports full modem emulation but drops connections unpredictably during longer BBS sessions.</li>
<li><strong>Terminal software quirks</strong>, ANSI art and special characters routinely render incorrectly in period terminal clients, an ongoing annoyance when connecting to text-heavy BBS systems.</li>
<li><strong>File transfer the easy way</strong>, a plain FTP client on the Atari talking to a NAS on the local network sidesteps most of the internet-connectivity headaches entirely, especially for moving disk images and software archives back and forth.</li>
<li><strong>Modem emulation</strong>, the computer on the serial port talks to the module as if it were a Hayes-compatible modem, sending AT commands. It can "dial" an IP address or hostname, and the module connects to that host over Telnet. This is what lets a vintage computer dial into telnet BBSs.</li>
<li><strong>Telnet server</strong>, a computer on the Wi-Fi network can connect to the module's port 23 and the module passes communication through to the serial connection, letting you reach the Atari itself over Wi-Fi.</li>
</ul>
<p>For dialing out to BBSs, the modem emulation mode is the relevant one. The module understands Hayes-style commands like <code>ATDT</code> followed by a hostname or IP address, and can even limit the line speed via the S37 register for an authentic slow-modem feel. Since the ESP8266 only has RX/TX pins, there are no hardware control lines, but the module handles the "+++" escape sequence to return to command mode during a call.</p>
<h2>Why connect a 40-year-old computer to the internet</h2>
<h2>Dialing the DarkForce! BBS</h2>
<p>To put it to the test, I dialed into <a href="https://www.telnetbbsguide.com/bbs/dark-force-bbs/" target="_blank">the DarkForce! BBS</a>, an Atari-centric system that has been running since the early 90s on a Mega ST4 with BBS Express! ST software. It's a fitting target for an Atari ST, since it's a fellow Atari machine at heart. With the terminal software on the Mega ST sending <code>ATDT</code> to the Wi-Fi modem, the connection to <code>darkforce-bbs.dyndns.org</code> over Telnet worked, and the ANSI login screen, message boards and file sections of a real BBS came up on the original hardware, no phone line involved.</p>
<h2>Why do it</h2>
<p>The obvious question is "why bother?", the Atari ST was never designed
for the internet, and the experience of using it online is objectively
worse than any modern device. But that's not the point. The real
satisfaction comes from making old hardware do things it was never
designed to do, understanding the networking stack at a level that modern
abstractions hide, and experiencing the dial-up era's BBS culture on
original hardware.</p>
<h2>The BBS experience</h2>
<p>Bulletin board systems from the dial-up era are still running today,
maintained by enthusiasts who keep the old software alive. Connecting to
one from an original Atari ST, via a Wi-Fi modem emulation, is a
genuinely nostalgic experience. The ANSI art login screens, the message
boards, the file sections, the door games, it's all exactly as it was
in the early 1990s. The main difference: instead of tying up a phone
line, the connection goes over Wi-Fi to a BBS that's accessible from
anywhere in the world.</p>
<h2>Lessons learned</h2>
<p>The biggest lesson: networking on retro hardware is 90% patience and
10% actual configuration. The STinG stack is well-documented but
fragile, wrong TCP/IP settings silently break connections without
useful error messages. The ESP32 Wi-Fi modules are cheap and flexible
but require careful firmware selection for the specific use case. And
terminal emulation is a rabbit hole of character sets, escape sequences,
and display quirks that haven't been relevant for decades but still
matter when connecting to a BBS that renders ANSI art.</p>
for networking, and a modern device does all this far more easily. But
that's not the point. There's real satisfaction in making old hardware do
things it was never meant to do, and in experiencing the dial-up era's BBS
culture on original hardware, over Wi-Fi instead of a phone line.</p>
<p class="note">If you're chasing BBS nostalgia on real hardware: budget far more patience for the networking layer than for the actual computer. The 1980s hardware is the easy part; convincing 2020s Wi-Fi and modern BBS ANSI dialects to cooperate is the real challenge.</p>
</div>
retro/index.njk
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- title: "📺 Monitor Compatibility"
summary: "The 15kHz problem explained, and which modern monitor panels actually cooperate with Atari colour modes."
href: "/retro/atari-monitor-compatibility/"
- title: "🔌 Networking & BBS"
summary: "Getting an Atari ST online via STinG and Wi-Fi modem hardware, and dialing into classic bulletin board systems."
- title: "🔌 Wi-Fi Modem & BBS"
summary: "Dialing into telnet bulletin board systems from the Mega ST 4 'Low' using dhansel's WifiModem and terminal software."
href: "/retro/atari-networking-bbs/"
- title: "🌀 Storm ST & Cloudy ST"
summary: "Adding 8 MB Alt-RAM and flashable TOS to the Mega ST, switching between EmuTOS and TOS 1.04."