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A good piezoelectric buzzer, if not used correctly, it is very easy to bad,How to correctly use the piezoelectric buzzer? Should pay attention to the following points
Buzzer drive mode can be divided into External drive and self dirve
The electronic buzzer is an integrated structure sounder, divided into piezoelectric buzzer and electromagnetic buzzer two types.
SWT ultrasonic distance measuring sensor, uses the ultrasonic echo ranging principle, using the precise time difference measurement technique
Piezo Ultrasonic Transducer