fixed communication

src/DataAccess/ArduinoSerial.cpp

     if (!res) {
         return res;
     }
-    return writeBytes((const char*)&data, length);
+    return writeBytes(data, length);
 }
 
 BResult ArduinoSerial::writeBytes(const char *data, size_t length)

src/main.cpp

         std::cout << (int) data.getData().first << " " << hexStr(data.getData().second)
         << " " << data.getData().second << std::endl;
         if (data.getData().first == PACKET_SELF_TEST) {
-            SERIAL_PACKET_TYPE_INT status = 42;
+            SERIAL_PACKET_TYPE_INT status = ERROR_NONE;
             arduinoSerial.write((const char*)&status, sizeof(status));
         }
     }