Almost OT: Pushbutton switch latching

[Chuck Guzis]

On 5 Dec 2007 at 17:11, Mr Ian Primus wrote:

> Yeah, I thought about that. But then I'd have to find
> a rotary switch with the proper number of positions...
> And besides, what's the fun in that? I also wanted to
> be able to use an arbitrary number of inputs. Eight
> was just an example :)

My take on this is that if you employ pushbuttons, you'll need some 
sort of indicator as to which one's been pressed.  So, that's a bunch 
of LEDs or a digital display and all the gallimaufry associated with 
that.  If you want to extend the design, consider stacking a number 
of binary-encoded switches.  Readily obtainable with direct (i.e. 
foolproof) readout.  

But nothing beats a rotary switch for simplicity.  A quick search of 
the Jameco catalog shows no shortage of them.

Cheers,
Chuck