Thanks Greg, I'll keep the higher values of pull-up resistor in mind. Been working on my 3D printer for a couple of days But will get back to anemometer problem on weekend. Too much to do, too little time!
Don
Well, I see now the potentiometer method has lost favor. I added a 4,7K pull-up to both the cups and vane sensors. Some improvement but no real success. I suppose if I had the control unit, maybe a lot better. Right now I can register about 310 degrees, then continuing to 360, no good. At about 1 degree and continuing reading looks valid. So about 50 degrees is dead band. Thanks all for reading this. Guess I'll archive it.