2pcs Passive Buzzer Alarm Module Sensor Beep for arduino smart car+free cale
1,05 €
Pin definitionVcc 3.3~5VGND the GroundI/O I/O interface of SCM. No oscillation source,need square wave(frequency 2K-5K ) to drive No oscillation source,need square wave(frequency 2K-5K ) to drive. Audion 9012 drive;.
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