People are just too lazy – that’s why the remote control was invented anyway. Some aren’t lazy at all yet they still have unnecessary power consumptions due to the fact that they forget turning things off. To alleviate the problems concerning timed functions the timer was invented – obviously the name tells the story. A very useful piece of work, yet not all appliances have a timer built into them.
This particular project is a simple yet elegant way to cut unnecessary power expenses by turning things on and off for a specific span of time. It harnesses the power of PIC16F628A to control a single pole double throw relay that is capable of operating at AC line voltages while keeping time at the same time. The timer comes with an LCD to indicate the amount of time left before the relay changes state; it also has buttons to be able to adjust the time.