PASSIVE BUZZER MODULE LOW LEVEL TRIGGER

Features of passive buzzer:

1. There is no oscillator inside the passive, so if you use a DC signal, you can't make it sound. A square wave of 2K~5K must be used to drive it.

2. The frequency of the sound is controllable, and the effect of "do re mi fa so la si" can be made.

3. In some special cases, a control port can be reused with LED.

Specification:

Type: Passive

The module is driven by a 9012 transistor.

Working voltage: 3.3V-5V.

Equipped with fixing bolt holes for easy installation.

3 Pin control.

Module size: 38 × 13 × 10 mm

Weight: 3.5 g

Module interface description (3-wire):

VCC External Connect 3.3V-5V Voltage (can be directly connected with 5v single-chip microcomputer and 3.3v single-chip microcomputer)

GND External Connect GND

I/O External Connect MCU IO port