From: unclemon@suckass.com   
      
   geronimo wrote:   
   >       Its for a fluid tank that will be mounted in a car, and be kept   
   > full using a level switch and a windshield washer fluid pump. So the   
   > closed/low level signal from the level switch needs to be conditioned   
   > so that the pump isn't triggered on by normal sloshing around, but   
   > only by  the switch staying closed for a minute or so.  I am thinking   
   > this might be something that  a 555 timer chip could handle?   
      
   Ready made:   
      
   http://www.altronix.com/index.php?pid=2&model_num=6062   
      
   Kits:   
      
   http://electronickits.com/kit/complete/elec/ck1605.htm   
      
   [8~{} Uncle Monster   
      
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