Active buzzer (cover your ears ladies and gentlemen)

(cover your ears ladies and gentlemen) How to use a simple active buzzer.

Dec 30, 2021

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tutorials

buzzer

active buzzer

Components and supplies

Jumper wires (generic)

ELEGOO UNO R3 Project Complete Starter Kit

Buzzer

Apps and platforms

Arduino Web Editor

Arduino IDE

Project description

Code

active.ino

c_cpp

1
2int buzzer = 12;//the pin of the active buzzer
3void setup()
4{
5  pinMode(buzzer,OUTPUT);//initialize the buzzer pin as an output
6}
7void loop()
8{
9  unsigned char i;
10 while(1)
11 {
12   //output an frequency
13   for(i=0;i<80;i++)
14   {
15    digitalWrite(buzzer,HIGH);
16    delay(1);//wait for 1ms
17    digitalWrite(buzzer,LOW);
18    delay(1);//wait for 1ms
19    }
20    //output another frequency
21     for(i=0;i<100;i++)
22      {
23        digitalWrite(buzzer,HIGH);
24        delay(2);//wait for 2ms
25        digitalWrite(buzzer,LOW);
26        delay(2);//wait for 2ms
27      }
28  }
29} 
30

int buzzer = 12;//the pin of the active buzzer
void setup()
{
  pinMode(buzzer,OUTPUT);//initialize the buzzer pin as an output
}
void loop()
{
  unsigned char i;
 while(1)
 {
   //output an frequency
   for(i=0;i<80;i++)
   {
    digitalWrite(buzzer,HIGH);
    delay(1);//wait for 1ms
    digitalWrite(buzzer,LOW);
    delay(1);//wait for 1ms
    }
    //output another frequency
     for(i=0;i<100;i++)
      {
        digitalWrite(buzzer,HIGH);
        delay(2);//wait for 2ms
        digitalWrite(buzzer,LOW);
        delay(2);//wait for 2ms
      }
  }
}

Downloadable files

active_buzzer_(cover_your_ears_ladies_and_gentlemen)_schematic_eJJlvilW4d.pdf

active_buzzer_(cover_your_ears_ladies_and_gentlemen)_qFUiuj1sqR.pdf

active_buzzer_(cover_your_ears_ladies_and_gentlemen)_schematic_eJJlvilW4d.pdf

active_buzzer_(cover_your_ears_ladies_and_gentlemen)_qFUiuj1sqR.pdf

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littlefalcon9

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