[sdiy] Proximity volume control.

[Eric Wood]

Sharp makes a chip that can can be useful for this, I made a synth  
controller module using it in my digital electronics class. It needs a  
pic and and some c code to make it interface properly with the control  
voltage wold, but was pretty cool. I can dig it out and give you the  
part number and probably find the code for it if I remember to look  
hard enough. It was actually a pretty cool module, a bit buggy though  
as I had zero knowledge of pic coding and my profesor was rusty to say  
the least, but the bulk of the work is there. I have the schemos and  
everything if anyone is interested. Much more than a volume control,  
it did alot more.

Sent from my iPhone

On Dec 1, 2009, at 5:50 PM, peter edwards  
<synth at casperelectronics.com> wrote:

> Thanks for the great suggestions on proximity volume control. I  
> really appreciate the feedback.
> I think that a capacitive sensor might be the best way to go. so...  
> basically the theremin approach. Thanks to John Luciani for the moog  
> etherwave hotrod guide book.
> It had some really valuable tips, but I didn't see anything on one  
> important factor which is how to extend the range or sensor field.  
> I'd like to extend it to about 2 feet. Anyone have experience/super  
> clever ideas on how to do this???
> thanks!
> -pete
>
> On Nov 29, 2009, at 9:09 AM, Ingo Debus wrote:
>
>>
>> Am 28.11.2009 um 13:50 schrieb peter edwards:
>>
>>> I'm working on a series of synth podiums for a show coming up in a  
>>> few months. I want the volume of each podium to increase as the  
>>> viewer approaches it, or at least (worst case) to turn on when  
>>> they are standing in front of it. I think a range of 1-2 feet is  
>>> necessary.
>>
>>
>>
>> Would one of these work?
>> <http://www.sharpsme.com/Page.aspx/europe/en/b25198ae-eeda-458b-a14f-92e2bd34f1c7/Distance_Measuring/ 
>> >
>>
>> Ingo
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