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A new Web-based Microtronic emulator - running the original firmware ROM!

A project log for Microtronic Phoenix

After 45 years, the original Microtronic firmware ROM rises from the ashes and flies with new hardware!

michael-wesselMichael Wessel • 10/06/2026 at 04:27•0 Comments

A Microtronic emulator that runs in your web browser is now online. It runs the original 1981 firmware ROM on an emulated TMS1600, with the program RAM, display, keypad, inputs, outputs and 1 Hz clock modelled at pin level behind a console drawn from photos of the real machine, and it comes with a library of programs from the manuals. Everybody can now experience the Microtronic - there is nothing to build, and nothing to load or install on your computer: just open the page. Made with Claude Code (Opus 5.5).

https://lambdamikel.github.io/microtronic-emulator/

Source code: https://github.com/lambdamikel/microtronic-emulator

Microtronic Emulator

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