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The LED Metronome is a modern interpretation of a classic device which is a staple of music teachers, students and composers everywhere. This circuit uses 12 LEDs to simulate the sweeping motion of the pendulum and a speaker with a simple amplifier to generate a tick as the LEDs at the end of the arc are struck. It is adjustable from about 40 BPM to just over 200 BPM. When made in a Lexan or Plexiglass case it can add a fun ultra-modern touch to music practice (though most music teachers agree that you should never rely on a metronome to keep your beat). |
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Is there any way we could attach a 7-segment display to the circuit?! I was thinking about putting three displays alined to show the current BPM! | ||
works like a charm, if its not ment to work its working | ||
Like most projects on this site this one is also missing a very important supply bypass capacitor. The old high current 555 creates a 400mA supply current spike which messes up the Cmos counter unless 100uF and 0.1uF supply bypass capacitors are used. A Cmos 555 could be used since it does not create a supply current spike. |
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