5 Pcs Active Buzzer Module 3.3~5V Low Level Trigger Buzzer 3 Pin Control Board
$ 13.02
1The active buzzer has an internal source of oscillation, so it will be called as soon as it is energized. 2Program control is convenient. A high-low level of the MCU can make it sound,which the passive buzzer can't. 3The module is driven by S8550 transistor.Adopts 3 pin control. 4Fixed bolt holes for easy installation. 5When the I/O port is input low, the buzzer sounds.
