Automatic timers that turn lights and electric appliances on and off at predetermined times have become increasingly popular with the introduction of ”smart” models. With built-in microprocessors ...

The project allows a user to turn OFF the buzzer or bell for 10 hours to prevent annoyance from unexpected doorbell ring when falling asleep. The doorbell circuit contains a resettable timer which is ...

Currently circulating in Asia and Australia are counterfeit A'PEXi Auto Turbo Timers. The counterfeiters are illegally using the A'PEXi logo in order to make a quick buck. A'PEXi wants everyone to ...

The circuit was designed to produce a timing scheme that will provide a longer span of time to become activated. LM555 – a highly stable device for generating accurate oscillation or time delays with ...