[sdiy] dave smith *instruments*

[Tom Wiltshire]

On 1 Feb 2010, at 20:33, Adam Schabtach wrote:

>
>> I've experimented with velocity-dependent increments (e.g.
>> the faster you turn the encoder, the more the values go up)
>
> One workaround I've played with--and I'm not saying it's ideal--is  
> to use
> encoders with integral pushbuttons, and use the "pushed" state to mean
> "increment faster". So if you rotate the knob while pushing it at  
> the same
> time, the value goes up/down by e.g. 10 rather than 1.

Haha! That's one of the projects I've got on my bench as we speak!

A lot of the stuff I play with needs various parameters supplying to  
it via a serial link - oscillators need 'frequency', 'fine tune',  
'pulse width', 'grain length', 'pitch wobble', etc etc. I thought it  
might be useful to build an all-purpose interface for testing. This  
would be in the style of the Oberheim Xpander, e.g. LCD display and  
encoders. I've got two 2x40 displays (the Samsung UC-40207's I was  
asking about) and eight pushbutton encoders to mount underneath them.  
This should enable me to test out new ideas much more easily than at  
present, when I often finish up choosing a small subset of the  
available parameters to make variable because I only have 6 ADC  
channels free on my favourite chip. Building a test interface for a  
new idea becomes a question of entering new parameter names and  
ranges in software, which has to be easier. We'll see!

T.