Uploaded March 2026 | Updated September 2026, 2 weeks ago

---

We all know that computer hardware has been miniaturized while performance has increased to frankly ridiculous levels. My Phone beats supercomputers from the 1990's.
But I wanted to see if I could fly a lunar lander simulation using a ZX Spectrum, my first computer, using the first programming language I ever learned. It turns out that the limitations in this are not related to the CPU or memory, but to the I/O and my patience for developing old software.

This uses kRPC to talk to a Python Program which in turn talks to a ZX Spectrum via the Interface 1 Serial Port. The Spectrum is running on the Spectacular emulator

spectaculator.com

forum.kerbalspaceprogram.com/topic/130742-112x-krpc-control-the-game-using-c-c-java-lua-python-ruby-haskell-c-arduino-v054

Follow me on Twitter for more updates:
twitter.com/DJSnM

I have a discord server where I regularly turn up:
discord.gg/zStmKbM

If you really like what I do you can support me directly through Patreon
patreon.com/scottmanley