encoder knob inc/dec decoder revisited..

[Jeremy Brookes]

>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...