In this tutorial I Will show you how to turn on an led with your mouth. The Led will turn on when start to blow the sound sensor

Step 1: Material and Setup

Material needed for this project are:

Linkit One Board
an LED
digital sound sensor
3 male to female jumper cable
micro USB cable

To setup the linkit one board follow this link

the connection between the sensor and linkit one board:

sensor linkit one

5v<------------>5v

GND <-------> GND

Out <---------> D2

Step 2: The Code

Upload this code to your linkit one board. This is actually the digital pull up example from the arduino ide

/*
 Input Pullup Serial
 This example demonstrates the use of pinMode(INPUT_PULLUP). It reads a
 digital input on pin 2 and prints the results to the serial monitor.
 The circuit:
 * Momentary switch attached from pin 2 to ground
 * Built-in LED on pin 13
 Unlike pinMode(INPUT), there is no pull-down resistor necessary. An internal
 20K-ohm resistor is pulled to 5V. This configuration causes the input to
 read HIGH when the switch is open, and LOW when it is closed.
 created 14 March 2012
 by Scott Fitzgerald
 http://www.arduino.cc/en/Tutorial/InputPullupSerial
 This example code is in the public domain
 */
void setup() {
  //start serial connection
  Serial.begin(9600);
  //configure pin2 as an input and enable the internal pull-up resistor
  pinMode(2, INPUT_PULLUP);
  pinMode(13, OUTPUT);
}
void loop() {
  //read the pushbutton value into a variable
  int sensorVal = digitalRead(2);
  //print out the value of the pushbutton
  Serial.println(sensorVal);
  // Keep in mind the pullup means the pushbutton's
  // logic is inverted. It goes HIGH when it's open,
  // and LOW when it's pressed. Turn on pin 13 when the
  // button's pressed, and off when it's not:
  if (sensorVal == HIGH) {
    digitalWrite(13, LOW);
  }
  else {
    digitalWrite(13, HIGH);
  }
}