Subject: Re: Looking for simple circuit...
Date: Tue, 17 Sep 2002 23:24:22 +0200
Organization: University of Twente, Enschede, The Netherlands
NNTP-Posting-Date: 17 Sep 2002 21:24:41 GMT
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
"Corey872" wrote in message
> Greetings all...
> I am in need of a simple circuit to perform as follows:
> Input is two momentary push buttons (call them A and B) Output would
> be two wires (call them Y and Z) which will be alternately energized
> with +12VDC. The function is that when I press button "A" I need the
> output to make binary counting steps up and when I press button "B" I
> need to make steps down.
> For example, start with both outputs off (0,0)..press button
> "A"...output goes to(0,1)...press button "A" again (1,0) again (1,1)
> at this point, pressing button "A" will not do anything else.
> Pressing button "B" reverses the counting process from where ever it
> left off with the "A" button. But in either case if the counting
> reaches (0,0), the "countdown" button does nothing further or if the
> count reaches(1,1) the "count up" button does nothing further.
> Admittedly, I am taking the easy way out...hoping someone on here with
> much more knowledge than I can just say "I have already built that
> circuit, here is a schematic"
> Any help would be greatly appreciated
sounds like an flip flop to me