International Journal of Electronic Devices and Networking
2021, Vol. 2, Issue 1, Part A
Design and construction of a digital clock with hourly alarm
Author(s): Yakubu Adem
Abstract: Clocks are devices used to measure the passage of time. The clock was generated using logical gates instead of crystal oscillator which is more stable, but due to its cost and unavailability was not in the implementation of this project. The frequency obtained from the time base was exactly a clock signal of 1Hz, which was used to drive the circuit. The main circuit of clock was implemented counter and decoder instead of microprocessor used in conventional digital clocks. Due to the size and nature of components used the project could not be made smaller than the clocks that are factory made. Clocks require a source of power and means of transmitting and controlling it, as well as indicator to register the lapses of time. It also contains an alarm circuit that send out an alarm signal on hourly basis.
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How to cite this article:
Yakubu Adem. Design and construction of a digital clock with hourly alarm. Int J Electron Devices Networking 2021;2(1):01-06.