diff --git a/nodejs/ar-com/arduino.js b/nodejs/ar-com/arduino.js
index 4835aab..4cfb4cf 100644
--- a/nodejs/ar-com/arduino.js
+++ b/nodejs/ar-com/arduino.js
@@ -78,11 +78,11 @@ Arduino.prototype.processWriteBuffer = function () {
 Arduino.prototype.valueToLastFour = function(val) {
   var encodedVal = ""; 
 
-  for (var i = 3; i > 0; i--) {
+  for (var i = 3; i >= 0; i--) {
     
     encodedVal += String.fromCharCode(val/(Math.pow(2,8*i)));
-    val = val%Math.pow(2,8*i);
-
+    val = val % Math.pow(2,8*i);
+  
   }
 
   return encodedVal;
@@ -91,7 +91,7 @@ Arduino.prototype.valueToLastFour = function(val) {
 Arduino.prototype.valueToFirstTwo = function(val) {
   var encodedVal  = ""; 
 
-  for (var i = 1; i > 0; i--) {
+  for (var i = 1; i >= 0; i--) {
     
     encodedVal += String.fromCharCode(val/(Math.pow(2,8*i)));
     val = val%Math.pow(2,8*i);