[Fix] Added error code identifiers

Signed-off-by: Jonghee Son <zzongaone@gmail.com>

Author: jonghee-son

src/Dynamixel2Arduino.h

@@ -48,6 +48,37 @@ enum D2ALibErrorCode
   D2A_LIB_ERROR_UNKNOWN_MODEL_NUMBER
 };
 
+enum HardwareErrorCode
+{
+  INPUT_VOLTAGE_ERROR = 0x80,
+  OVERHEATING_ERROR = 0x20,
+  MOTOR_ENCODER_ERROR = 0x10,
+  ELECTRICAL_SHOCK_ERROR = 0x08,
+  OVERLOAD_ERROR = 0x04
+};
+
+enum DYErrorCode
+{
+  NO_ERROR = 0,
+  OVER_VOLTAGE_ERROR,
+  LOW_VOLTAGE_ERROR,
+  INVERTER_OVERHEATING_ERROR,
+  MOTOR_OVERHEATING_ERROR,
+  OVERLOAD_ERROR,
+  INVERTER_ERROR,
+  BATTERY_WARNING,
+  BATTERY_ERROR,
+  MAGNET_ERROR,
+  MULTI_TURN_ERROR,
+  ENCODER_ERROR,
+  HALL_SENSOR_ERROR,
+  CALIBRATION_ERROR,
+  FOLLOWING_ERROR,
+  BUS_WATCHDOG_ERROR,
+  OVER_SPEED_ERROR,
+  POSITION_LIMIT_REACHED_ERROR
+};
+
 class Dynamixel2Arduino : public DYNAMIXEL::Master
 {
   public: