How do you make a circuit that keeps a solenoid on for at least 24 hours and turns off and can be easily be changed to different intervals with a switch like 6 hours maybe a 4060b ic or a pic?

Answer 1

No doubt either of those approaches would certainly work.

Personally, since I don't see well enough to wire a CMOS board, and I don't know

how to program a PIC, I would probably go to the big 'home improvement' store

and buy a couple of timers. One of them has to be the kind with two AC outlets ...

one normally on and one normally off.

-- If the interval you want is less than 24 hours, then all you need is a simple

kitchen timer.

If it's more than 24 hours, then you can do it like this:

-- Plug the 'double-throw' timer into the wall. Plug an ordinary kitchen timer

into its normally-off outlet.

-- Now here comes the part where you need to understand electronics and

know how to use solder and black tape: Attach two AC line cords in parallel

to whatever supply you use to power your solenoid.

-- Plug one line cord into the normally-on outlet of the first timer, and the other

line cord into the kitchen timer.

-- Set both timers so that their sum adds up to the interval you want.

While the double-throw timer is running, it powers the solenoid power supply,

and the kitchen timer is unpowered.

When the first timer expires, its two outlets flip. The kitchen timer starts running,

and it powers the solenoid supply until it too expires.

This rig can run any interval from very short to almost 48 hours.

Sometimes I'm so clever I make myself sick. Especially in the abstract.

I'll leave you to work out the kinks and the bugs and actually make it work.

That should be no problem for a guy who can work with CMOS ICs and PICs.