Can someone help a poor old ME..... I'm working on a project to open/close a 12v Solenoid valve and run a mini 12v dc water pump for (1sec to 60sec.) simultaneously, then shut off and run two 24v dc motors simultaneously for (1sec to 60sec.) and shut off. I would like to use a switch that turns this process on (manual) but off automatically. The mechanical stuff I'm OK with, but I'm not really sure how to do this. What steps do I need to take to achieve this, 555 timer?