ESP32-FabGL-SMSEmulator

Spec sheet

Purpose

An in-progress SEGA MarkIII / Master System emulator built for ESP32 using the FabGL library.Read 9 Oct 2026 · github.com

Product

An emulator for the SEGA MarkIII / Master System built for ESP32 using the FabGL library; the project is marked as a work in progress.Read 4 Oct 2026 · github.com

Audio limitation

FM sound, especially rhythm, and PSG sample playback may have reduced fidelity because of FabGL sampling-rate constraints.Read 9 Oct 2026 · github.com

Build requirements

The recommended setup uses an ESP32 Dev Module with PSRAM enabled, the Espressif ESP32 board manager, and FabGL v1.0.9.Read 9 Oct 2026 · github.com

Controller converter

The README says the Atari-to-Serial converter hardware and firmware published in the repository’s MSX1 emulator section can be reused.Read 9 Oct 2026 · github.com

Controller support

Atari-specification D-Sub 9-pin controllers can connect through the ESP32 UART; the README specifies RS-232C at 115200 bps on IO39 for two joystick ports.Read 9 Oct 2026 · github.com

Development status and support

The developer says most main source code is based on AI-generated code and that they cannot answer detailed questions about its internal logic or specifications.Read 4 Oct 2026 · github.com

Download availability

The GitHub repository page showed no releases.Read 4 Oct 2026 · github.com

External controllers

It accepts Atari-specification D-Sub 9-pin controller signals via UART using RS-232C at 115200 bps on IO39, for two joystick ports.Read 4 Oct 2026 · github.com

Frame rate

The README reports 60 FPS (59.94 Hz), with every frame rendered.Read 4 Oct 2026 · github.com

Keyboard controls

F12 pauses or resumes the emulator, Shift+F12 resets the ESP32, and F9–F11 with Shift load and save slots 1–3.Read 9 Oct 2026 · github.com

Keyboard mapping

The README says users may need to modify source code to adapt key mappings to their keyboard layout.Read 4 Oct 2026 · github.com

License information

The README directs users to source-file header comments for license terms and says included cores follow the policies of FabGL, fMSX, and MIT/free licenses.Read 9 Oct 2026 · github.com

Licensing

The README directs users to review source-file header comments for license details and says included cores follow the stated FabGL, fMSX, and MIT or free-license policies.Read 4 Oct 2026 · github.com

Performance

The main README lists 60 FPS (59.94 Hz) with every frame rendered; the MarkIII subdirectory README lists a target of about 30 FPS.Read 9 Oct 2026 · github.com

Save states

SRAM-supported titles can save and restore data on a MicroSD card using three slots, with the SAVE folder created manually before launch.Read 9 Oct 2026 · github.com

Support limitation

The developer says most main source code is based on AI-generated code and detailed questions about its internal logic may not be answerable.Read 9 Oct 2026 · github.com

Use disclaimer

The README states that use is at the user's own risk and disclaims liability for resulting damages.Read 4 Oct 2026 · github.com

Use limitation

The project disclaims liability for damages and says users use the software at their own risk.Read 9 Oct 2026 · github.com

Video and input

The project describes VGA output, PS/2 keyboard support, and serial connections for external controllers.Read 9 Oct 2026 · github.com

Where Specifiction places it

• Sega Master System Emulators#17 of 257.1