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SidecarTridge Souffle Keyboard Emulator for Atari Mega ST/STE

SidecarTridge Souffle Keyboard Emulator for Atari Mega ST/STE

€49,00 EUR
€49,00 EUR
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External IKBD keyboard dongle for Atari Mega ST/STE

The SidecarTridge Soufflè is the external member of the SidecarTridge Keyboard Emulator family. It connects to the Mega ST and Mega STE keyboard port through a 1 m coiled RJ11 6P4C cable, taking the place of the original keyboard and behaving like the IKBD the computer expects.

A built-in USB hub brings modern keyboards, mice and gamepads to the machine, while two native Atari outputs keep your original mouse and joysticks working. It is a strong fit for any Mega whose original keyboard is missing or no longer works.all compatibility with software that expects the original controller architecture.

Key Features

External plug-in replacement

Connects to the Mega ST and Mega STE keyboard port through a 1 m coiled RJ11 6P4C cable, in place of the original keyboard. No opening the machine, no motherboard modification, no soldering.

Built-in 4-port USB hub

Four USB-A ports on board for modern keyboards, mice and gamepads. Plug in the input devices you already own and use them on the Atari with IKBD-native behaviour.

Native Atari mouse and joystick outputs

Two DB9 outputs keep your original Atari mouse and joysticks fully working, side by side with the modern USB devices. Nothing about the classic input path is lost.

Modern Bluetooth input

Bluetooth Classic and BLE support for keyboards, mice and gamepads. Pair wireless devices straight to the Mega and keep the machine behaviourally honest, built around the IKBD model the computer expects.

Wi-Fi web configuration

Set pairing, keyboard layout, mouse speed and auto-fire from any modern browser. Soufflè exposes its own Wi-Fi access point on first setup and joins your network afterwards.

Field-updatable firmware

Firmware updates land through the on-board micro-USB connector. New features and fixes stay one cable away, with no JTAG, no programmer and no Atari-side rituals.

What you get

  • Soufflè dongle fully assembled and tested, latest stable firmware preloaded
  • 1 m coiled RJ11 6P4C cable for the Mega ST and Mega STE keyboard port

Installation overview

  1. Power the Soufflè over micro-USB first and open the Wi-Fi web setup from any modern browser to choose its operating mode (USB or Bluetooth) and pair your input devices.
  2. Power off the Atari and unplug the original keyboard from the Mega ST or Mega STE keyboard connector.
  3. Connect the Soufflè coiled cable to the keyboard port using its RJ11 6P4C plug.
  4. Plug in your input devices: USB devices into the built-in hub, and your original Atari mouse or joysticks into the DB9 outputs if you want to keep using them.
  5. Power on the Atari and start using it.

Full reference for Bluetooth pairing, keyboard layouts, mouse speed and firmware updates is in the keyboard emulator documentation.

 

Compatibility

Atari model Status
Atari Mega ST Supported
Atari Mega STE Supported
Atari 520 / 1040 ST / STF / STFM / STE (internal 7-pin keyboard) Use the internal Croissant board instead
Atari TT Works in theory, use at your own risk
Atari Falcon Not supported (different keyboard architecture)

Soufflè is the external option for the Mega keyboard port. For machines with the internal 7-pin keyboard connector, the internal Croissant board is the right fit.

Specs

  • Connector to Atari: 1 m coiled cable, RJ11 6P4C, in place of the original Mega keyboard
  • USB input: built-in 4-port USB-A hub for keyboards, mice and gamepads
  • Native Atari outputs: two DB9 outputs for the original Atari mouse and joysticks
  • Wireless: Bluetooth Classic and BLE, Wi-Fi 2.4 GHz
  • Input behaviour: full IKBD emulation, multiple keyboard layouts, adjustable mouse speed, programmable auto-fire
  • Configuration: browser-based, served over Wi-Fi (access point and station modes)
    Firmware update: on-board micro-USB
  • Microcontroller: RP2350
  • Board revision: SOUFFLE-IKBD REV1.2.0
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