It works fine without a transistor though... Just plugged the wires in, used tone() and it worked.
Is it really needed and why of that?
Also, because it is a electromagnetic buzzer, it won’t be able to create electricity when it tap it, right?
It works fine without a transistor though... Just plugged the wires in, used tone() and it worked.
Is it really needed and why of that?
Also, because it is a electromagnetic buzzer, it won’t be able to create electricity when it tap it, right?