encoder knob inc/dec decoder revisited..

[cyborg0 at GlobalEyes.net]

yeah, that would work, but it would definitely cost more and I think the PIC
chips use more current...I also wanted to do it with off-the shelf commonly
available parts and I dont think they sell PIC chips at radio shack! :) But, as
a one-chip solution this could definitely work.. If I ever get a PIC programmer
I will look into it..
Anybody know of a freeware PIC compiler/programmer? I have been wanting to mess
with these for a while.. I guess a basic stamp could do it too, and supposedly
you can program them off of the parallel port pins of your PC..
Rob

Jeremy Brookes wrote:

> >Now, I just need to try to get this thing down to 2 cmos chips so that
> >it will have as little loading on an existing circuit as possible..I
> >have changed it, so anyone interested in the fully tested circuit just
> >email me..BTW, word about town is that the one-chip decoder (specialty
> >item) is aprox 30 USD! This whole spiel cost me about 5 hrs of thinkin
> >and tinkerin and about 3 dollars in parts..
>
> I wonder if anybody's considered doing this decoding with a PIC processor
> chip. It'd be a dead simple program, one chip solution and could possibly
> even use one of the tiny 8-pin PICs. If you used a bigger PIC with more I/O
> pins you could do the decoding for multiple encoders. Just a thought...