+ byte_radio: General radio stack for byte-level radios
+ net: Network (multihop protocols)
+ ctp: Collection tree protocol
+ le: Link estimator
+ lqi: LQI-based collection for CC2420 platforms
+ power: Power management component library
+ printf: Printing small text messages to serial port
+ serial: Serial communication
+ timer: Timer component library
+ tossim: TOSSIM simulator