<![CDATA[To know the exact count of time period between the first and furthermore, about beat in a song, we need an instrument called metronome. This research was done to design and make a metronome which is AT89S51 microcontroller based, so we can analyze the time period counting for every beat within tempo.The method that has been used in this research is books evaluating with studied everything which are connected with AT89S51 microcontroller, seven segment display, LCD, keypad 3X4 and buzzer. Seven segment display as an output to display number 1,2,3 and 4 according to its turn. LCD has a function as an output to display the tempo category, so that the user can know the tempo chosen on the keypad. Keypad 3X4 is used as an input to arrange the tempo. Buzzer will produce “beep” sound when the seven segment display turn on. Next, the methods is followed by block diagram design and components scheme, instrument and software BASCOM making, also tested the components series to know was it work as its function or no.This metronome has already worked as the initial plan. This tool has the same precise of time period counting between the first and furthermore. This tool can display number 1,2,3 and 4 as its turn on the seven segment display and display category or tempo groups on LCD and “beep” sound through the buzzer.]]>
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