Re: timer circuit
Hello,
I need to activate a circulation pump for solar hot water on a boat by a relais. The pump should run for max.1 minute, then stop for about 30 min. During that time the water will be heated by the sun. When the pump runs the water will be circulated to bring colder water into the solar system, and so on. This cicle should continue until switched off in the evening.
I checked circuits with the 555 chip but did not find what I am lookung for. Another chip would be CD4060 but also there I could not find what I need. I thought there would be some simüple way to build it but it seems to be more difficult than I thought.
I have 12 and 24 volt dc available.
Bernd