   if (nickName.length() == 0) {
     return false;
   }
+
+  debug_outputDebugString("proc_hello", "line89 > " + csvline);
 
 #if 1
   Serial.println("Your S/N:" + serNo);



/*
 * v0.6 2016 Feb 21
 *  - UARTlib > extractCsvRow: fix bug > "AAA" return "AAA","AAA","AAA"
 * v0.5 2016 Feb 20
 *  - add kCmdList String array and CMD_e enum

} CMD_e;

//-------------------------------------------------------------------------
// for debug

void debug_outputDebugString(String prefix, String msg)
{
  // this function is used to turn off/on all the debug prints

  Serial.println("[DEBUG] " + prefix + " > " + msg);
}

//-------------------------------------------------------------------------

void setup() {
  Serial.begin(115200); 
