 
 char is_command_running;
 
-char firmware_version[20];// year.month.day.build number
+const char* firmware_version = "2019.04.29.0"; // year.month.day.build number
 
 #define MAX_BUFFER_LENGTH 65
 


				Serial.write("#");
			}

#ifdef DEBUG
			Serial.write("initial buffer is=");
			Serial.write(current_buffer);


	//delay(2000);

	Serial.write("T#");// initialization is over; must check for T# string (which is the alive test)
	Serial.flush();

  /*
	Serial.write("Commands are:");
