What to do with your friend, the electrical engineer

2011-06-17 14:25

A friend of mine is an electrical engineer. An electrical engineer who is… sometimes bored.

Anyone who knows me is already cringing.

So, the first project. We have cats. We have three female cats. And they have not decided which of them owns the door at the top of the basement stairs, but they are convinced that it is to be one of them. They are even willing to challenge the authority of The Cat That Pees 409.

So, there is to be a Device. The Device shall have two contacts, and if they are shorted it suddenly makes horrible noises. The device will be constructed such that it sits on the floor with space under it, and the two contacts go down to the floor. Were there to be a pool of conductive liquid, there would be sudden noises.

We’ll see whether we can make this work. If we can we’ll refine it a bit and post schematics. (A big part of my goal is to get a solenoid into it such that it can make caps go off, because those are loud.)

Peter Seebach



  1. You could just buy one. It took mere seconds of searching to find sprayalert.com, and that’s not even the one I had seen before.

    — Bob O`Bob · 2011-06-18 00:52 · #

  2. I am intrigued by your concept. I wish you luck and hope you take care in testing your device before implementing it in the field.

    — Faelyn · 2011-06-21 21:45 · #

  3. So… What happened??

    — Grigori · 2011-09-16 03:54 · #