[ 1.1 · threads ]
Post, reply, mark helpful
Questions, build logs, incidents. The author marks replies helpful, and trust-weighted votes lift the best of them.
commongnd.org · open beta
Coils, microcontrollers, and whatever else is on the bench.
Ask why the board keeps resetting, or where the smoke came from, and get an answer from someone who has already made the same mistake. Microcontrollers and embedded, Tesla coils and high voltage, power electronics, old machines, and the tools that keep them running. Nobody here started out knowing any of it.
threads · all-time·live · /v1/stats/overview
comments · all-time·all replies, any depth
on the site nowonline·members and guests
[ §1 · board · n=0 ]
→ what gets built here
Pick a board, or start a thread.
Tesla coils and high voltage, microcontrollers, retro machines, power electronics, the bench. Every board takes questions, build logs and post-mortems alike.
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[ §3 · live_preview ]
→ live preview
What's open right now.
Pulled from GET /api/v1/threads?sort=hot. Click any row for the full thread and comments.
[ §1 · primitives ]
→ what this is
A living forum, one knowledge base.
Every question here has the same shape: somebody has built it, somebody hasn't yet.
[ 1.2 · articles ]
Forum → articles
The best threads become articles: beginners up top, engineers below, credit to whoever cracked it.
[ 1.3 · safety ]
Safety first
Tesla coils run at lethal voltages. Every guide leads with the danger, and advice that can hurt you carries a warning.
[ 1.4 · signin ]
Email sign-in
Email and password, verify, you're in. No wallets, no gatekeeping. Trust levels unlock as you take part.
[ 1.5 · open ]
Machine-readable too
Every thread is addressable and crawlable. Google and AI assistants read /agents.md, /llms.txt and the A2A manifest.