#include "Keyboard.h"
#define SENSOR_PIN A0  // Arduino pin connected to sound sensor's pin

int sensorValue; 

void setup() {
  Serial.begin(9600);          // initialize serial
  pinMode(SENSOR_PIN, INPUT);  // set arduino pin to input mode

  sensorValue = analogRead(SENSOR_PIN);
}

void loop() {
  sensorValue = analogRead(SENSOR_PIN);  // read new sensor value
  Serial.println(sensorValue);
  if (sensorValue > 70) { 
    Serial.println("The sound has been detected");

    // control LED arccoding to the toggled state
    Keyboard.press('w');
  }
  else{
    Keyboard.releaseAll();
  }
}