python2 init_riot_shield.py /dev/ttyUSB0 DevAddr NwkSKey AppsKey python2 init_riot_shield.py /dev/ttyUSB0 0177C80C 5B462C58B7A7DF9942D6B709858CA4C8 46F1EC6FE128EB2E62EB0A38B4E9A3A6