You can do a lot of interactive projects, the most commonly used is for sound and light shows.
Experiment with digital sound using this buzzer module.
Buzzer module make the simplest sound. Just change the frequency, you can hear different sounds (like alarm).
It is used on daily appliances, like PC, phones and so on. buzzer
Set bolt hole,easy to assemble
|I/O||I/O interface of SCM|
1PCS*Passive Buzzer Module for Arduino
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