5 Pcs Passive Buzzer Module Low Level Trigger Sound Module 3.3 5V 3 Pin Control

Features: Passive buzzer without oscillating source inside, so if you use DC signal, you can t make it scream. It must be driven by a square wave of 2K 5K. The sound frequency is controllable, and the effect of do re mi fa so la si do can be made. In some special cases, a control port can be multiplexed with the LED. Equipped with fixture nuts for convenient mounting. The module is driven by 9012 transistor.Uses 3 pin control port. Specification: Item Type:Passive Buzzer Working Voltage:3.3 5V Small Printed Circuit Board Size:3.3 x 1.3cm 1.3 x 0.51in Module Pin: VCC :to External 3.3 5V GND:to External GND I O :to Microcontroller IO port Package List: 5 x Passive Buzzer Module