This is a redesign of existing product, used in dusty environment, for ramping up/down current and voltage setting. The existing design use a roller switch for this (so you don't have to click on up down arrow thousands of times) Very much link the stereo equipment volume dial, the existing roller goes bad easily... I am trying to find a better replacement. -- Youda On Sun, May 2, 2010 at 8:35 AM, Rich wrote: > Is this a replacement or for a new design? =A0Because if it is a new desi= gn > (and the current is small) you can make one digitally...if you have the t= ime > and money budget :-) =A0 =A0It might be fun to do that. =A0But it might b= e a lot > easier to buy a switch :-) > > > ----- Original Message ----- > From: "Adam Field" > To: "Microcontroller discussion list - Public." > Sent: Friday, April 30, 2010 5:40 PM > Subject: Re: [EE] Find a Switch > > >>> The switch can rotate on both directions with no limit, on rotate >>> clockwise, one set of contact switches on/off and the switch makes a >>> click sound, on rotate the opposite direction, another set of contact >>> makes sequence of on/off contacts. >>> >> >> http://en.wikipedia.org/wiki/Rotary_encoder >> >> Search rotary encoder on Mouser or Digikey or any of the big >> electronic suppliers. >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist