cd /news/agent-protocols/show-hn-bbrouter-ben-eater-s-8-bit-c… · home › topics › agent-protocols › article
[ARTICLE · art-161768] src=bbrouter.com ↗ pub= topic=agent-protocols verified=true sentiment=↑ positive

Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards

A developer launched BBRouter, a virtual breadboard editor that simulates Ben Eater's 8-bit SAP-1 computer on 3D breadboards, with features including side-by-side diff, a scope, auto-syncing schematics, an auto-router, uploads from the real Arduino IDE, and an MCP connection that lets AI assistants such as Claude help build or troubleshoot the circuit. The tool is offered on a Maker plan at $7/month, with the code HACKERNEWS making the first month free and then $5/month for as long as the plan is kept. The developer said a side goal is building a community around a simulator that works realistically for an actual build and has a usable UI on mobile and trackpads.

read1 min views1 publishedNov 1, 2026

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.

Comments URL: [https://news.ycombinator.com/item?id=50321522](https://news.ycombinator.com/item?id=50321522)

Points: 2

── more in #agent-protocols 4 stories · sorted by recency
── more on @bbrouter 3 stories trending now
sponsored brought to you by zahid.host 4,200+ EU-deployed projects
reading about agents? ship yours in a single git push.

Run your AI side-project on zahid.host

EU-based hosting, git-push deploys, automatic HTTPS, no cold starts. Free tier with a custom domain — perfect for shipping the agent you just read about.

$git push zahid main
→ Live at https://your-agent.zahid.host ✓
Get free account → Pricing
from €0/mo · no card required
LIVE [news/show-hn-bbrouter-ben…] indexed:0 read:1min 2026-11-01 · —