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.
No
A work environment is any place where people work (ie an office, a kitchen, a nightclub).
A programmable timer usually just means a timer that can be programmed to go off at any time.
delay timer
Yes, the Kitchen Timer (Silver) - CDN has duel alarms.
A CDN will be more accurate, but a regular kitchen timer, if used properly, is very accurate as well.
You can purchase a digital kitchen timer at your local Walmart, Target, or Sears retail store. You can also purchase one online from the Amazon website.
Eggs, egg timer, egg beater and Espresso machine are things in the kitchen.
One can purchase an electric kitchen timer in a variety of stores such as Amazon, Walmart, Target, Bed Bath & Beyond, Dollar Tree, K-Mart, and department stores.
I use a kitchen timer
· table · teapot · timer · toaster
Dishes, jar opener, kettle, ladle, oven, salt shaker and timer are kitchen items. Zester, utensils, ice cream scoop and apron are kitchen items.
· eggs · egg timer · espresso machine
No
eat biscuits and cheese for energy when energy runs out the timer finishes
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.