Simple Electronic Buzzer

Simple Electronic Buzzer circuit diagram

This is a simple electronic buzzer circuit diagram. Cheap and easy to build.
The 555 is used as astable multivibrator operating at about 1kHz and produces a shrill noise when switched on. The frequency can be adjusted by varying the 10K resistor. You may change the 10K resistor with variable resistor.



Cool circuit, tried it out and it worked perfect. Was wondering if you could walk me through how you came about the resistor and capacitor values.

Great Post. Could you please explain in detail how the circuit works, thanks.