Active Buzzer Module

OpenELAB Technology Ltd. Verified independent store

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Two module interface description (3-wire system) VCC is externally connected with 3.3V-5V voltage (it can be directly connected with 5v single-chip microcomputer and 3.3v single-ch ip microcomputer) GND external GND 3 I/O is connected to the IO port of the single chip computer module is driven by S8550 triodeWorking voltage 3.3V-5VIt is equipped with fixing bolt holes for easy installationSmall PCB size: 3.2cm * 1.3cmWhen I/O port input low level or high level, buzzer sounds Show more