[sdiy] rotary encoder?

[Matthew Smith]

Quoth Tom Wiltshire at 2009-01-08 20:41...
> I've wondered about something like this too, after having seen the  
> nice "virtual pots" on the Nord Lead. The thought was that you could  
> have a ring of LEDs and a single encoder connected to a cheap uP,  
> which would provide LED drive and read the encoder. You could then  
> just treat the whole shebang like a single part and set or read  
> values via SPI (or whatever comms takes your fancy).

Once designed, you could probably make something like this (with your 
LEDs) for about $20 a shot (component cost).  I think you'll find that 
this is done a fair bit in industry as I bet we aren't the first ones to 
come up with this idea ;-)

Cheers

M


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Matthew Smith
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