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