ned_yesno — A Fun Way to See the Answer

This whole site boils down to one question: has a nuke gone off? The answer is a word on a web page. ned_yesno takes that word off the screen and puts it on your shelf.

What it is

It’s a small desk device with two vintage INS-1 neon bulbs — one labelled yes, one labelled no. An ESP32 inside connects to WiFi, quietly polls this website, and lights whichever bulb matches the current answer. No app, no notifications — just a warm neon glow telling you the world is (still) fine.

There’s a built-in self-test too: flip the switch and both bulbs light at once, so you know the whole thing is working without waiting for the end of the world.

⚠️ A serious safety warning

Those little neon bulbs need a high voltage to strike, so this board carries a 91-volt supply. That is more than enough to hurt or even kill you.

This board contains a 91V power supply. This has every opportunity to hurt or even kill you. If you are not trained in high-voltage safety, please don’t build this.

Take that at face value. This is a fun project, but it is not a beginner’s first electronics build.

Build one yourself

The design — schematics, PCB gerbers, mechanical drawings and firmware — is open-source on GitHub: ned_yesno.