Reference
The article delves into the principles of controlling a buzzer using digital and analog signals, outlining how signal input affects sound output and frequency.
Principle
Buzzer is a kind of voice device. It is made of vibration and resonance device. When the buzzer is controlled via digital signal, input high to start the buzzer, and low to stop it. When the buzzer is controlled via analog signal, the larger the signal, the louder the buzzer sound; the smaller the signal, the lower the buzzer sound.
Other Supplementary Information
Input different signals to control the buzzer, shown below:
Input "ON" or "1", and the buzzer module makes sound;
Input "OFF" or "0", and the buzzer module stops.
When powered up, the buzzer module is ready to go, and you can also control its frequency via analog signal.
When the buzzer is controlled via digital signal, input high to start the buzzer, and low to stop it.
When the buzzer is controlled via analog signal, the larger the signal, the louder the buzzer sound; the smaller the signal, the lower the buzzer sound.
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