Might be simpler to measure the brake pedal position directly, or use a pressure sensor. Cheers, -Neil. On Wednesday 31 August 2005 10:00 am, Gus Salavatore Calabrese scribbled: > I have been designing a vehicle tail light which would start flashing > at a slow rate > as the brakes were applied and at a faster rate as the brakes were > applied harder. > Ideally this unit would be standalone except for power ( which might > be solar provided ). > > I see no way to differentiate between braking and going downhill. Any > ideas ? > > > > > Augustus Gustavius Salvatore Calabrese 720.222.1309 AGSC > www.omegadogs.com Denver, CO > > Disclaimer: The above statements are not intended as an endorsement of > any kind and any inference of having any verifiable knowledge about > anything referenced above is purely coincidental. ( we hope ) > > If you are not part of the solution, you are precipitate. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist