one option is to replace the 100K pot with a 100k digital pot. You can get digital pots that simply increase or decrease their resistance depending on whether an input is high or low during a clock cycle. There are several ways to take this project, what elements are you comfortable working with?
I like the idea of a digital potenciometer But what will it change... ???
I mean how to do the fade in/out and delay...
I have a question... little off the topic... The digital pot. can be bypassed?
I mean if wanted someday to extend this circuit by another input, for example computer to do the job, can it be bypassed? and controlled via comp? without manual switching the control device (pot / comp)???
Is that a simple way to make it DIGITAL from Input till Output?
I mean for example 16bit communication for 65536 steps for smooth fading IN/OUT.
Is there a simple way to do that? Is there a way to build the wheel without positions (digital) used on some stereos? I want it digital cause of later communication with PC. thanks