Wednesday, October 13, 2010
A simple electronic buzzer
This very simple circuit just uses a couple of resistors, a capacitor and the easily available 555 timer IC.The 555 is setup as an astable multivibrator operating at a frequency of about 1kHz that produces a shrill noise when switched on. The frequency can be changed by varying the 10K resistor.
Labels:
Alarms/Indicators
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