[sdiy] Question how to improve rotary encoder feel

[paula at synth.net]

Pete, 

 Yes, I love the use of neopixels for the rings, just awesome. 

Paula 

On 2017-06-09 23:25, Pete Hartman wrote:

> I assume you've seen the Euclidean Circles module? 
> 
> Pete 
> 
> On Fri, Jun 9, 2017 at 4:22 PM, <paula at synth.net> wrote:
> 
> Just remembered these puppies ;  
> 
> http://mayhewlabs.com/products/rotary-encoder-led-ring [1] 
> 
> Shame they're discontinued. 
> 
> Paula
> 
> On 2017-06-09 15:53, Elain Klopke wrote: 
> I know this is still expensive, but very interesting.... select up to 16-bit resolution...
> 
> https://www.digikey.com/product-detail/en/AMT102-V/102-1307-ND/827015?WT.mc_id=IQ_7595_G_pla827015&wt.srch=1&wt.medium=cpc&WT.srch=1&gclid=CjwKEAjwjunJBRDzl6iCpoKS4G0SJACJAx-Vl4p0hPzBSpwzSQG49Jod93fHxdtBAS0jDJDcRSuR8RoCIE3w_wcB [2] 
> 
> On Fri, Jun 9, 2017 at 8:21 AM, Tom Farrand <mbedtom at gmail.com> wrote:
> 
> At least some of the encoders on ham equipment are optical encoders.  I repaired one within the last year.  (The knob has the requisite fingertip indentation.)  Being optical in nature, control can be almost anything you'd want.  I would guess that the resolution was maybe 120 PPR or better.  The specific unit was a Yaesu FRG-100 general coverage receiver and the optical encoder was the main tuning dial.  If these could be obtained inexpensively, they would be wonderful for synth control.  It has been a while since I looked but think that even these "cheapie" encoders are still in the $30 - $40 range (or more).
> 
> Tom Farrand
> 
> On Fri, Jun 9, 2017 at 7:49 AM, Steve <sleepy_dog at gmx.de> wrote: 
> 
> Tom Wiltshire wrote: 
>> I did many experiments trying proportional control of a parameter using the velocity of the encoder. It was a disaster, in short. Mostly much too sensitive, or much too slow. In the end, I finished up with a system like you suggest, > where you can push the encoder for fine control. 
> 
> That reminded me of something else with built-in "switching" between coarse and fine control:
> Those encoder knobs on many HAM radio transceivers to tune, with a dent near the outer radius, where you can rest your fingertip and use the thing as a crank with very quick rotations, or grab the whole thing for fine control.
> Needs more space of course, for those things are bigger than the average knob on a synth module. And the encoder has more wear if the solution is "turn it more!", if it's a mechanical one. And I'd guess things finger tip cranking doesn't feel nice with some encoders hard detent.
> Something like this:
> https://www.adafruit.com/product/2055https://www.adafruit.com/product/2055 [3]
> 
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Links:
------
[1] http://mayhewlabs.com/products/rotary-encoder-led-ring
[2]
https://www.digikey.com/product-detail/en/AMT102-V/102-1307-ND/827015?WT.mc_id=IQ_7595_G_pla827015&wt.srch=1&wt.medium=cpc&WT.srch=1&gclid=CjwKEAjwjunJBRDzl6iCpoKS4G0SJACJAx-Vl4p0hPzBSpwzSQG49Jod93fHxdtBAS0jDJDcRSuR8RoCIE3w_wcB
[3]
https://www.adafruit.com/product/2055https://www.adafruit.com/product/2055
[4] http://synth-diy.org/mailman/listinfo/synth-diy
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