Difference between revisions of "Sensor-Buzzer"

Sensor-Buzzer

The product number of Sensor-Buzzer is: MSDO11

Sensor-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.

Introduction of Pins

Pins of the sensor: PIN1: GND PIN2: VCC General signal pins: PIN3(IO1): digital/analog signal PIN4(IO2): NC(null) Special signal pins: If it is IIC: IO1/IO2 are respectively SDA/SCL. If it is soft serial port: IO1/IO2 are respectively tx/rx.

Special to Sensor-Buzzer sensor pins PIN1: GND PIN2: VCC PIN3(IO1): Output pin PIN4(IO2): NC Microduino sensor can communicate with core module through the connection with Microduino-Module Sensor Hub.

Features

• Controllable sound frequency (eg: You can achieve the effect of piano spectrum with it. )
• Small size which is easy to install.

Specification

• Voltage
  • 3.3V~5V working voltage

• Size
  • Size of the board: 23.5mm*13mm
  • 1.27mm-spacing 4Pin interface connected with sensorhub.
  • The CAD drawing of the sensor: File:Sensor CAD.zip

• Technical parameters
  • Drive with 2K~5K square wave
  • The sound frequency is controllable.

• Connection
  • This sensor can be connected to the following interfaces of core: A0~A7,D2~D13

Document

• Schematic diagram: File:Sensor-Buzzer.Zip

Development

Program Download

• Download and unzip the program File:Sensor-Buzzer Test.zip

Programming

• Follow the Software Getting Started Guide.
• Select the Board, Processor and Port.
• Click [File]->[Open], browse to the project program address, and click "Sensor-Buzzer Test.ino" to open the program.
• After confirming all these items are correct, click "→" to download the program to the development board.

Hardware Setup

• Referring to the following diagram, connect the Sensor-Buzzer to digital pin D6 of Microduino-Sensorhub.

Result

• After download, you can hear the alarming sound.

Application

• Hardware Needed: Microduino-Core, Microduino-USBTTL, Microduino-Sensorhub, several dupont lines and USB cable;
• Software:
  • Make sure you did build Microduino development environment 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