[sdiy] SID questions...

[Ingo Debus]

Michael Buchstaller wrote:
> 
> So i thought it would be a better idea to use a microcontroller that
> has a built-in A/D converter.

Or just a built-in timer? I once made a resistance-to-digital converter
using a monoflop (CMOS 555). Processor triggers monoflop and measures
pulse width. Works nice, and is very cheap.

> That would be easier to program, more
> accurate and have the benefit of being able to add a real CV input.

With the 555, a CV input is perhaps possible too. Feed the CV into the
resistor that charges the cap. But I haven't tried that.

Ingo