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 ...

Description: The Model 405AE 1/16 DIN features two modes of operation: on-delay and interval timing. Each features eight selectable time ranges and a single pole, double throw (SPDT) contact output ...

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 ...

The project was designed as an AVR witch timer that can turn OFF lamps after a minute of exposure on a UV exposure box for PCB prototyping. The old good ATmega8 microcontroller was used in this ...