The idea is that it's something that will show you a readout of consequence without it being as modern as an LCD screen. To force the whole 'peering' thing I decided it would have to be seen through a security door viewer. Besides I happened to have one kicking around.
Nixie tubes but realistically that just isn't going to happen.
The next idea was an 8x8 LED dot matrix as they are cheap, very versatile and I have one kicking around, along with the serially driven driver chip to make it easy to use. I've been intending to go with this for a while but struggled with how to make it look good.
So I've struggled with how to make this work physically. I was going with hollowing out a knob from a newel post but it was simply huge and started to go awry as soon as I started doing it.
Some very quick fettling up of a plastic tube originally holding vitamin pills has turned out a pretty good looking viewer in my opinion.
I may experiment with pushing a little paper or cotton wool inside to diffuse the display so it looks more grungy but it'll pretty much do as it stands.
Posted: Sunday, November 24, 2013