Windows supports the concept of a mouse with absolute positioning rather than relative. It's used for touchscreens and such. Just send absolute positioning with the pot limits at the edges of the screen. -Adam On 2/4/08, Carl Denk wrote: > And what happens when the pot is at a limit of travel, and you want to > move some more? Think you need continuous rotation, which means a > digital control or push buttons with a clock strobe, or could be pot > with a center position of no movement, and then change in resistance > could be a movement speed control either way. > > Herbert Graf wrote: > > On Sun, 2008-02-03 at 15:02 -0500, bob wrote: > >> I need to control a mouse pointer with two potentiometers. No buttons needed. I have tried to adapt the USB firmware from Microsoft using the 16c745 but my experience and understanding of this is limited. If I use two of the ADC channels for the pots, can I control the pointer this way? How about substituting a 16F818 or 916 (or anything I can reprogram ) for the 16c? I would like to use a usb connection for this. Any suggestions? Assembly language would be best for me > > > > Shouldn't be too hard. Remember though that a mouse does NOT send > > position, it sends CHANGE in position. So you have to read the pots and > > only send the DELTA of the POT position. > > > > TTYL > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Moving in southeast Michigan? Buy my house: http://ubasics.com/house/ Interested in electronics? Check out the projects at http://ubasics.com Building your own house? Check out http://ubasics.com/home/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist