text: 
  #ifndef PROJECT_CONF_H_
  #define PROJECT_CONF_H_
  
  #undef NETSTACK_CONF_RDC_CHANNEL_CHECK_RATE
  #define NETSTACK_CONF_RDC_CHANNEL_CHECK_RATE 16
  
  #undef NETSTACK_CONF_RDC
  #define NETSTACK_CONF_RDC nullrdc_driver
  
  #undef NETSTACK_CONF_MAC
  #define NETSTACK_CONF_MAC csma_driver
  
  #endif /* PROJECT_CONF_H_ */
  