Feature(may vary by option.)

●Operating voltage:3.3-5V.
●Module using 9012 PNP triode drive.
●With fixing bolt hole, easy to install, Pin out for easy wiring, passive internal without oscillation source, so if the DC signal can not make it chirp, must use 2K ~ 5K square wave to drive it.
●VCC: external 3.3V-5V voltage(can be directly connected to 5V microcontroller and 3.3V microcontroller).
●GND: external drive system GND, I/0: external microcontroller I0 pin or other audio drive source.

[Buzzer Module]

Description