diff --git a/arduino/arduino.ino b/arduino/arduino.ino
index c405e7c..5a22faf 100644
--- a/arduino/arduino.ino
+++ b/arduino/arduino.ino
@@ -27,25 +27,7 @@ int stored[3];
 void loop() {
   if (Serial.available() > 0) {
     int data;
-    switch (data = Serial.read()) {
-      case '0':
-      case '1':
-      case '2':
-      case '3':
-      case '4':
-      case '5':
-      case '6':
-      case '7':
-      case '8':
-      case '9':
-      case 'a':
-      case 'b':
-      case 'c':
-      case 'd':
-      case 'e':
-      case 'f':
-        hex = (hex << 2) + charMap(data);
-        break;
+    switch (data = Serial.read()) {        
       case 'n':
         nextColour();
         break;
@@ -58,6 +40,9 @@ void loop() {
       case 'r':
         resetState();
         break;
+      default:
+        hex = (hex << 1) + charMap(data);
+        break;
     }
   }
 }
@@ -76,7 +61,8 @@ void nextLed() {
   for (int i = start; i < start + NUM_LEDS_PER_SQUARE; i++) {
     leds[strip][i] = color;
   }
-  
+
+  led++  
   rgb = hex = 0;
 }