I am attempting to use an off the shelf programmable timer to control a 12v motor. The timer is one of those that hooks directly to a hose bib and operates a small motor that opens/closes a built in valve.
The timer has two wires coming out of it. When it turns on there is a brief 1.5v current and when the programmed time is over the polarity is reversed for a brief -1.5v current (this opens and then closes the valve).
I would like to have this control my 12v pump but I can't figure out how to have those very short currents turn on and leave on the pump and then turn it off at the end of the program.
Would a latching relay work? I am at a loss and any help would be greatly appreciated.
The timer has two wires coming out of it. When it turns on there is a brief 1.5v current and when the programmed time is over the polarity is reversed for a brief -1.5v current (this opens and then closes the valve).
I would like to have this control my 12v pump but I can't figure out how to have those very short currents turn on and leave on the pump and then turn it off at the end of the program.
Would a latching relay work? I am at a loss and any help would be greatly appreciated.