[sdiy] dave smith *instruments*

[Dave Manley]

One alternative I've seen on a Boss SE-70 uses an encoder with a 
built-in momentary push switch.  Counts by 1 with the switch out, by 10 
with the switch in.  Very usable encoder interface, and since there's 
only one encoder on the box, not a big expense.  It's good for data 
entry, but not as a performance control.  I haven't priced them, so no 
idea how much of an adder there is.

-Dave


Tom Wiltshire wrote:
> 
> There's one other issue with encoders, which is that (detents or not) it 
> is very difficult to get enough resolution out of the movement you can 
> do in one turn. Whereas with a (decent quality) pot I can get somewhere 
> between 8 and 10-bit resolution (e.g. 250-1000 separate readings) fairly 
> reliably, I can't get any like such a high number from 300 degrees of 
> travel on a rotary encoder. Even if I do it the hard way and use every 
> single phase transition to give me 4 increments per detent - typical 
> encoder has 20-30 detents, times four equals around 100 positions. And 
> that's in 360 degrees.