The circuit based project describes an electronic metronome, which produces toc-toc sound at regular time intervals. Metronome is popular as a synchronizing tool [[wysiwyg_imageupload::]]for musicians through which they can match the tempo of their beats and hence, perform better. Known to be a greek invention, metronome breaks into two terms: metron which means measure; and nomos which decodes to “law”. Metronome has been a mechanical invention which, with advancement in time, has come to be electric and even software based. Explained here is an electronic circuit that works as a metronome.The metronome circuit uses 555 timer IC at its heart along with a few passive components and a speaker that works as an output device for the metronome.