Difference between revisions of "Sound Detection Sensor"

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==Purpose==
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==Outline==
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Sound detection sensor can detect sound intensity but cannot recognize the specified sound.
 +
<br />
 +
Inside the sensor, there is sound sensitive electret-condenser microphone. Acoustic wave triggers vibration of the thin electret film and causes capacitance change, generating subtle voltage. The voltage is converted to 0-5v, which can be recognized and received by mCookie-CoreUSB.
  
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This tutorial will show you how to use Microduino Microphone sound sensor.   
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==Specification==
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==Equipment==
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*Electrical specification
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*'''[[Microduino-CoreUSB]]'''
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**Operation voltage: 3V~5V
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*'''[[Microduino-Buzzer]]'''
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**Input Device
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*'''[[Microduino-MIC]]'''
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*Tech parameters
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*'''[[Microduino-Sensorhub]]'''
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**Voltage: 0～5V（100Hz～4000Hz）；
 +
**Sound intensity: 45～120dB；
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**Accuracy:±1%
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*Size
 +
**Size of the sensor: 5mm*5mm，
 +
**Size of the board: 20mm*20mm
 +
*1.27mm-pith 4PIN interface;
 +
*Connection method
 +
**Output: 0~5V analog signal  
 +
**Pin Description: GND, VCC, signal output and NC(Empty). The output signal is simulated, thus, it needs analog interface to detect(A0-A7). You can connect it to A6,A2,A0 of the Hub.
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==Development==
 +
===Equipment===
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{|class="wikitable"
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|-
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|Module||Number||Function
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|-
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|[[mCookie-CoreUSB]]||1||Core board
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|-
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|[[mCookie-Hub]]||1||Sensor pin board
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|-
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|[[Microduino-Sound]]||1||Sound detection sensor
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|}
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*Other Hardware Equipment
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**One USB cable
  
 +
[[File:mic-phone.jpg|600px|center]]
  
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*Other hardware equipment 
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===Preparation===
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**1x USB cable  
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*Setup 1：Connect Microduino-Sound and the A0 analog port of the Hub together. That analog port A0 is the pin of detecting sound. Users can change that according to personal needs.
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[[file:mCookie-Sound-sensor.JPG|600px|center]]
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*Setup 2：Stack the CoreUSB, Hub and Sound modules to the computer with a USB cable. 
 +
[[file:mCookie-Sound-pc.JPG|600px|center]]
  
 +
===Experiment: To Detect Sound Intensity===
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*Open Arduino IDE and copy the following code into the IDE. 
 +
<source lang="cpp">
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#define mic_pin A0
  
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==Program==
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int sensorValue;
  
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Program：
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// the setup routine runs once when you press reset:
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[[https://github.com/Microduino/Microduino_Tutorials/tree/master/mCookie_sensor/MicroduinoMIC MicroduinoMIC]]
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void setup() {
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  // initialize serial communication at 9600 bits per second:
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  Serial.begin(9600);
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  pinMode(mic_pin, INPUT);
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}
  
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Function Description:  
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// the loop routine runs over and over again forever:
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tone(buzzer_pin,value)  //Output frequency in the specified port.  
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void loop() {
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  // read the input on analog pin 0:
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  sensorValue = analogRead(mic_pin);
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  // print out the value you read:
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  Serial.print("Sound:");
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   Serial.println(sensorValue);
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  delay(100);        // delay in between reads for stability
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}
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</source>
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*Choose the right port from Tools→Serial Port in Arduino IDE after compiling and then download the program directly.
 +
[[file:upload.JPG|500px|center]]
 +
*After download, you can open the serial monitor. The displayed value reflects the current sound intensity.
 +
[[file:mCookie-Sound-res.JPG|500px|center]]
  
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==Debugging==
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===Program Debugging ===
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*“#define mic_pin A0” defines the pin of controlling LED; A0 means Microduino A0 pin, which can connect to A6,A2,A0.  
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Step 1: Plug Microduino microphone to the A2 pin of Microduino-Sensorhub and Microduino buzzer to D6.
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*Adopt “analogRead(mic_pin)” to read sound values.
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[[File:MicroduinoMicphoneSensor.png|600px|center|thumb]]
 
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Step 2: Connect the Microduino-CoreUSB to your PC with the USB cable and upload the code. [[File:MicroduinoMicphoneSensor1.png|600px|center|thumb]]
 
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Step 3: Speak towards the microphone.
 
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[[File:MicroduinoMicphoneSensor2V1.png|600px|center|thumb]]
 
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Step 4: You’ll hear the same sound from the buzzer.
 
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[[File:MicroduinoMicphoneSensor3.png|600px|center|thumb]]
 
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==Result==
 
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You will hear the sound analog value through the microphone.
 
  
 
==Video==
 
==Video==
  
 
|}
 
|}

Revision as of 02:36, 3 November 2015

Outline

Sound detection sensor can detect sound intensity but cannot recognize the specified sound.
Inside the sensor, there is sound sensitive electret-condenser microphone. Acoustic wave triggers vibration of the thin electret film and causes capacitance change, generating subtle voltage. The voltage is converted to 0-5v, which can be recognized and received by mCookie-CoreUSB.

Specification

  • Electrical specification
    • Operation voltage: 3V~5V
    • Input Device
  • Tech parameters
    • Voltage: 0～5V（100Hz～4000Hz）；
    • Sound intensity: 45～120dB；
    • Accuracy:±1%
  • Size
    • Size of the sensor: 5mm*5mm，
    • Size of the board: 20mm*20mm
  • 1.27mm-pith 4PIN interface;
  • Connection method
    • Output: 0~5V analog signal
    • Pin Description: GND, VCC, signal output and NC(Empty). The output signal is simulated, thus, it needs analog interface to detect(A0-A7). You can connect it to A6,A2,A0 of the Hub.

Development

Equipment

Module Number Function
mCookie-CoreUSB 1 Core board
mCookie-Hub 1 Sensor pin board
Microduino-Sound 1 Sound detection sensor
  • Other Hardware Equipment
    • One USB cable
Mic-phone.jpg

Preparation

  • Setup 1：Connect Microduino-Sound and the A0 analog port of the Hub together. That analog port A0 is the pin of detecting sound. Users can change that according to personal needs.
MCookie-Sound-sensor.JPG
  • Setup 2：Stack the CoreUSB, Hub and Sound modules to the computer with a USB cable.
MCookie-Sound-pc.JPG

Experiment: To Detect Sound Intensity

  • Open Arduino IDE and copy the following code into the IDE. 
#define mic_pin A0

int sensorValue;

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
  pinMode(mic_pin, INPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  sensorValue = analogRead(mic_pin);
  // print out the value you read:
  Serial.print("Sound:");
  Serial.println(sensorValue);
  delay(100);        // delay in between reads for stability
}
  • Choose the right port from Tools→Serial Port in Arduino IDE after compiling and then download the program directly.
Upload.JPG
  • After download, you can open the serial monitor. The displayed value reflects the current sound intensity.
MCookie-Sound-res.JPG

Program Debugging

  • “#define mic_pin A0” defines the pin of controlling LED; A0 means Microduino A0 pin, which can connect to A6,A2,A0.
  • Adopt “analogRead(mic_pin)” to read sound values.

Video

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