Iduino SE044 User guide

IDUINO for maker’s life

Pin

Description

S

Signal input pin, which can be driven by
square wave signal

+

Power(3.3V/5V), you may not see this
mark on the board, it’s the middle pin

-

Ground

Passive Buzzer(SE044)

1 Introduction

This module is similar with the Active Buzzer, the only difference is that this module
only can be driven square wave signal, not DC signal.

2 pinout

3 Example
Here is a example that driven the Passive buzzer sound. The connection as below:

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IDUINO for maker’s life

********Code begin********

int buzzer = 8 ;// setting controls the digital IO foot buzzer

void setup ()

{

pinMode (buzzer, OUTPUT) ;// set the digital IO pin mode, OUTPUT out of Wen

}

void loop ()

{

unsigned char i, j ;// define variables

while (1)

{

for (i = 0; i <80; i++) // Wen a frequency sound

{

digitalWrite (buzzer, HIGH) ;// send voice

delay (1) ;// Delay 1ms

digitalWrite (buzzer, LOW) ;// do not send voice

delay (1) ;// delay ms

}

for (i = 0; i <100; i++) // Wen Qie out another frequency sound

{

digitalWrite (buzzer, HIGH) ;// send voice

delay (2) ;// delay 2ms

digitalWrite (buzzer, LOW) ;// do not send voice

www.openplatform.cc