Almost OT: Pushbutton switch latching

Doc Shipley doc at mdrconsult.com
Thu Dec 6 15:39:26 CST 2007


Tony Duell wrote:

> Or a normal rotary switch and a bunch of pull up/down resistors (I don't 
> know if the enable lines are to be active high or active low)? Even more 
> direct. For that matter, what about a bank of mechancially-interlocked 
> buttons (I think you can still get such swtiches and the bracketry to 
> interlock them).

   It just occurred to me that there's a possible problem with the 
rotary switch plan.  If I've selected "3" and I then want to select "7", 
then "4", "5", and "6" are briefly selected.  Well, or "2", "1", and 
"0"....  :)

   If the selection sequence matters, you'd need some sort of delayed 
response.


	Doc


More information about the cctalk mailing list