Hi HN,
I kept wiring Ben Eater's 8-bit computer wrong, so I built a realistic virtual breadboard editor.
Some of the nice features are side-by-side diff, scope, schematics auto-sync, auto-router (BBRouter stands for breadboard router), and my favorites: upload from the real Arduino IDE and connect to your AI with MCP, let Claude & co build it or help you troubleshoot.
The link is the SAP-1 running. You can orbit it, probe a hole with the scope, slow the clock down, play with the virtual displays for debugging, then you can actually build it following the step-by-step instructions.
A side-goal is to create a community, there are quite a lot of simulators out there but mostly offline / too abstract to realistically use it for a real build. I also never found one that had a decent UI/UX and worked well on mobile or with a trackpad.
Happy to answer anything, and tell me what breaks.
p.s. Maker plan is $7/month; code HACKERNEWS makes the first month free and then $5/month for as long as you keep it.
imglorp26 minutes ago
How can I hide or move the ram program window? It's blocking the breadboard.
creackop19 minutes ago
In the meantime you can tap the layer icon on the bottom left and disable “displays”. In a few minutes, I’ll have the fix deployed to avoid blocking the screen
creackop21 minutes ago
Sorry about that, last minute bug, pushing a fix now to hide it on small screens.