Few days ago I asked about equalizer circuit, but now I understand that it is a bit too complicated for me. So I searched for something easier to build and found this metronome circuit:
What I would like to know is how can I add 4 leds that will flash alternately at every beat.
Also, why is there a transistor and what kind of speaker or piezo element should I use so that the measurements of the metronome would be as small as possible?
I think the audio amplifier isn't necessary?
And one more thing. The bigger the Vcc, the louder the volume?
Thank you.
What I would like to know is how can I add 4 leds that will flash alternately at every beat.
Also, why is there a transistor and what kind of speaker or piezo element should I use so that the measurements of the metronome would be as small as possible?
I think the audio amplifier isn't necessary?
And one more thing. The bigger the Vcc, the louder the volume?
Thank you.