Microcontroller Based Digital Clock System

Abstract

Electronic clocks have predominately replaced the mechanical clocks. They are much reliable, accurate, maintenance free and portable. In general, there are two kinds of electronic clocks. They are analog clock and digital clock. But digital clocks are more common and independent of external source. This system is mainly intended to develop digital clock by using PIC controlling system. T he microcontroller based digital clock is constructed with PIC16F628 in this system . Various types of digital clocks and modules are available in the market nowadays but this clock is different at least in the accurate time. To do controlling in microcontrol ler is only the feature of the clock. To show the time, 16character × 1line Liquid Crystal Display (LCD) is used.