Difference between revisions of "Sensor-Buzzer"

Microduino-Buzzer

Microduino-Buzzer是无源蜂鸣器，和电磁扬声器一样，需要高低变化不同频率的电压才能发声。频率越高则音调越高。 Microduino-Buzzer is a passive buzzer. Like a magnetic speaker, it needs voltage with different frequency so that it can make sound accordingly. The pitch 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;

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

#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.   
  }
}

• 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

Microduino-Cube-Station Front

• Back

Microduino-Cube-Station Back