查看“Microduino-BUZZER”的源代码

{{Language|Microduino-Buzzer }}
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[[File: Microduino-BUZZER.jpg|400px|thumb|right| Microduino-Buzzer]]

Microduino-Buzzer is passive just like a magnetic speaker. It needs voltage with different frequency and thus can make sound accordingly.  The sound becomes louder when the frequency gets higher.  




==Feature==
*Controllable sound frequency (eg: You can achieve the effect of piano spectrum with it. )
*Small size and beautiful 

==Specification==
*Operation voltage—3.3V~5V; 
*1.27mm pitch and 4Pin interface; 


[[File: Microduino-Buzzer_rule1.jpg|600px|thumb|center]]

==Document==

*Schematic：'''[[File: Microduino_ Buzzer.Zip]]'''

==Development==
It can be used to make various kinds of sound through the buzzer.  
==Application==
*Hardware Needed: [[Microduino-Core]], [[Microduino-USBTTL]], [[Microduino-Sensorhub]], several dupont lines and USB cable;  
*Software:
**Make sure you did build Microduino development envrionment or you need to refer to: [[Microduino Getting start]]
*Program
<source lang="cpp">
#define buzzer_pin 6
void setup()
{
  pinMode(buzzer_pin,OUTPUT);
}
 
void loop()
{
  for(int i=200;i<=800;i++)  //Increase the frequency from 200HZ to 800HZ circularly. 
  {
    tone(buzzer_pin,i);    //Output frequency in the port. 

    delay(5);      //The frequency lasts for 5ms.  
  }
  delay(1000);     //The highest frequency lasts for 1s. 
  for(int i=800;i>=200;i--)
  {
    tone(buzzer_pin,i);
    delay(10); //The frequency lasts 10ms.   
  }
}
</source>
*Stack all the modules and then connect the interface on the back of BUZZER to the D6 digital port of Sensorhub. 

*Open IDE, copy the program to IDE, choose the right board, compile and download.
*You can hear the alarm after download. 


==Purchase==

==History==

==Image==

*Front
[[file: Microduino-Buzzer-F.JPG|thumb|600px|center|Microduino-Cube-Station Front]]
*Back
[[file: Microduino-Buzzer -b.JPG|thumb|600px|center|Microduino-Cube-Station Back]]
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