Ks0019 keyestudio Passive Buzzer module
Passive Buzzer module
Introduction
We can use Arduino to make many interactive works of which the most commonly used is acoustic-optic display. All the previous experiment has something to do with LED. However, the circuit in this experiment can produce sound. Normally, the experiment is done with a buzzer or a speaker while buzzer is simpler and easier to use. The buzzer we introduced here is a passive buzzer. It cannot be actuated by itself, but by external pulse frequencies. Different frequencies produce different sounds. We can use Arduino to code the melody of a song, which is actually quite fun and simple.
Specification
- Working voltage: 3.3-5v
- Interface type: digital
- Size: 30*20mm
- Weight: 4g
Connection Diagram
Sample Code
int buzzer=8;//set digital IO pin of the buzzer
void setup()
{
pinMode(buzzer,OUTPUT);// set digital IO pin pattern, OUTPUT to be output
}
void loop()
{ unsigned char i,j;//define variable
while(1)
{ for(i=0;i<80;i++)// output a frequency sound
{ digitalWrite(buzzer,HIGH);// sound
delay(1);//delay1ms
digitalWrite(buzzer,LOW);//not sound
delay(1);//ms delay
}
for(i=0;i<100;i++)// output a frequency sound
{
digitalWrite(buzzer,HIGH);// sound
digitalWrite(buzzer,LOW);//not sound
delay(2);//2ms delay
}
}
}
After downloading the program, buzzer experiment is finished.
Resources
Video
http://www.keyestudio.com/wp/2016/05/ks0019-keyestudio-passive-buzzer-module/
Datasheet
http://www.keyestudio.com/files/index/download/id/1463649043/
Buy from
http://www.keyestudio.com/keyestudio-passive-buzzer-module.html