SolderDemon

Open hardware kits and retro CPU boards.
Full transparency. Real learning. No emulators.
Build it. Solder it. Understand it.

[SolderDemon @SolderDemon]

Next: a VS Code extension to simplify developing programs for rosco_m68k

[SolderDemon @SolderDemon]

I built ROSCO CLI to simplify the rosco_m68k development workflow.

Create a project → build → upload via Kermit → run.

No more repeating the same commands manually.

It’s ready to use:
https://t.co/fR01WIqSk3

[SolderDemon @SolderDemon]

Experimenting with the rosco_m68k and a W5500 module. Threw together a super simple web server that, for some reason, crashes after just a few requests :)

[SolderDemon @SolderDemon]

I ended up with a box of dead chips from working on SolderDemon.

Now I’m trying to turn them into epoxy keychains.

This is the first prototype and my first ever epoxy pour, so please ignore the bubbles 😅

[SolderDemon @SolderDemon]

I built an online runner for real Motorola 68010 hardware.

Run code on a real rosco_m68k board from your browser.

https://t.co/fn5AFyfjOk

[SolderDemon @SolderDemon]

This is mainly for people who want to experiment with 68k ASM, C, retro hardware, or low level programming without owning the board.

[SolderDemon @SolderDemon]

I finished the first public version of SolderDemon Runner.

You can now run motorola 68010 programs online on real rosco_m68k hardware.

Not an emulator. Real hardware.

https://t.co/aX5kNAtOth

[SolderDemon @SolderDemon]

I also added precompiled demo programs.

So even if you do not have your own binary yet, you can still try the runner and see the board executing real code.

[SolderDemon @SolderDemon]

Basically, a tiny online playground for real retro hardware.

Not an emulator.
A real rosco_m68k board running your code.
Still experimenting with raspberry pi 4 + rosco_m68k, but it already feels useful for learning ASM, C, and low-level programming from anywhere.

[SolderDemon @SolderDemon]

Had an interesting idea for rosco_m68k.

I want to let anyone write and run programs for a real motorola 68010 system directly from the web.

Upload a .bin file, or write asm / C in the browser, run it, and see the output live.

[SolderDemon @SolderDemon]

The setup is simple in theory.

A raspberry pi 4 acts as the runner. It queues jobs, resets the rosco_m68k board, sends the compiled program through Kermit, and captures the serial output.

The output is then streamed back to the browser over web socket.

[SolderDemon @SolderDemon]

I made a small tool for easily connecting to the serial console and sending programs via Kermit on rosco_m68k.

It does not require any additional dependencies. Works on Windows, Linux, and macOS.

https://t.co/bSTaHQqCFl

[SolderDemon @SolderDemon]

This is how a day quietly passed working on rosco_m68k boards

[SolderDemon @SolderDemon]

Finally figured out why the shipping rate was not showing up for anyone on Tindie.

Turns out it was because I had shipping from Ukraine. Switched it to Poland, and everything started working.

[SolderDemon @SolderDemon]

I started a small AI-assisted devkit for rosco_m68k:

https://t.co/ZSLGeqhzyE

The goal is to make 68k development easier by giving coding agents a proper project structure, examples, and instructions for writing/building rosco_m68k software.

[SolderDemon @SolderDemon]

Having fun with Lilka - a Ukrainian DIY console powered by ESP32-S3 and running Keira OS (FreeRTOS-based). Small, open source, and very hackable. Grab a kit or assembled version at https://t.co/USziSj958f

[SolderDemon @SolderDemon]

The bus board for rosco_m68k is a pretty sweet piece of kit. Still plenty of slots to fill, planning to add a video adapter based on the V9958, and currently working on a sound card built around the YM2149. This thing is slowly turning into a full retro workstation.

[SolderDemon @SolderDemon]

Finally got around to the RAM expansion board for rosco_m68k. More memory, more fun. Available on https://t.co/USziSj8xiH as a DIY kit or fully assembled.

[SolderDemon @SolderDemon]

Hey @tindie and @Supplyframe, my store is broken due to a critical shipping bug. Customers cannot complete an order from ANY country because the created shipping rate is not being applied. I've submitted ticket #198155, but support is ignoring me while I'm losing sales daily.