Added comments

final.js

@@ -1,4 +1,3 @@
-var BitArray = require('node-bitarray');
 var tessel = require('tessel');
 
 // Connect to device
@@ -23,23 +22,39 @@ i2c.transfer(new Buffer([0x0D]), numBytesToRead, function (error, dataReceived)
 // dataReceived contains all of the the bits for x, y, z - OUT_X_MSB as well as OUT_X_LSB - 6 bytes which is 48 bits
 
 /*
+
   In the i2c.transfer function the dataReceived consists of all the 6 bytes of data 2 bytes each for the x, y and z values.
   Each of the x, y and z coordinates have two registers associated with them for storing the 12 bit long sample.
   The first 8 bits are stored in their respective OUT_MSB registers. These are the Most Significant first 8 bits.
   The next 4 bits are stored in their respective OUT_LSB registers. The remaining 4 bits are occupied
   by 0s. These lower 4 bits are redundant bits which are not required.
+
+  The organisation of the registers can be seen in the datasheet inside section 6.1 (Data Registers), page number - 21
+
 */
-  i2c.transfer(new Buffer([0x01]), 2, function (error, dataReceived) {
-      // Print data received (buffer of hex values)
+  i2c.transfer(new Buffer([0x01]), 6, function (error, dataReceived) {
+
+      // This is an exception. If an error is generated, it will throw the error
       if (error) throw error;
 
+      //This array is going to store the final x,y,z values
       var out=[];
-      for (var i=0;i<1;i++)µ{
-        // dataReceived[0] - OUT_X_MSB decimal values
-        // dataReceived[1] - OUT_X_LSB decimal values
-        console.log(dataReceived[0]);
-        console.log(dataReceived[0]<<8);
-        console.log(dataReceived[1]);
+
+      /*
+
+      The for loop is iterated 3 times, in order to extract the x,y,z values.
+      The gCount variable is a bitwise OR operation between two binary numbers:
+        1. The OUT_MSB of the respective coordinate, that is left shifted by 8 bits in order to make space for the remaining 8 bits
+        of the OUT_LSB.
+        2. The OUT_LSB of the respective coordinate.
+
+      The OUT_LSB of the respective coordinate right shifted by 4 to get rid of the redundant lower 0 bits which are 4 in number.
+
+      Finally, check whether the number is negtative. If it is negative
+
+      */
+
+      for (var i=0;i<3;i++){
         var gCount=(dataReceived[i*2] << 8) | dataReceived[(i*2)+1];
         console.log(gCount);
         gCount=gCount >> 4;