intelligent wiper delay - single push-button control and continuously variable

4-18 — elektor april 1980 intelligent wiper delay An extremely annoying aspect of poor windscreen wipers is that they are fine — until you have to use them. We unfortunately are unable to do anything about that but we can help them cope with varying weather conditions. There have been many circuits published relating to wiper delays but never one quite like this. It is intelligent, it only needs to be told once what is required of it. It will then carry out your orders until you change them, which you can at any time, instantly. It"s so good that we (being male chauvinist pigs) are currently converting one into a secretary. single push-button control and continuously variable The main disadvantage of conventional delay circuits is that the correct setting is often awkward to find. Usually, it is a devil of a job, when using a pot, to find the right setting for keeping the screen clear without the wipers having to make too many wipes. Once the correct mode has eventually been f...