High Quality Passive Buzzer Module Low Level Trigger Buzzer Control Panel Alarm Module for Arduino

Description:

The characteristics of the passive buzzer is:1 passive internal without shock source, so if use dc signal can't make it.Must use 2 k ~ 5 k square wave to drive itFor more than 2 sound frequency control, can make "m hair sola west" effect.3 in some particular case, can reuse and LED a controlThe characteristics of the active buzzer is:1 Active buzzer inside with shock source, so as long as the electricity will call2 Program control convenient, single chip microcomputer a high and low level can make the sound, and the passive buzzer is can't do.Each weight is about 6 g

Introduction:

1 module driven by 9012 triode2 working voltage of 3.3 V to 5 V6 sets of fixed bolt hole, convenient installation7 small board PCB size: 3.3 cm * 1.3 cm2 module interface specification (3 wire system)1 VCC external 3.3 V to 5 V voltage (which can be directly connected to 5 V microcontroller and 3.3 V microcontroller)2 GND external GND3 I/O external microcontroller IO port