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Subtleties of IEEE 802.15.4 Small packet size – 128 byte including MAC, 103 bytes of payload Uses 64 bit MAC addresses, but has provisions for 16 bit short addresses Support for multiple topologies Supports AES block cypher in several modes (AES-CCM-64 mandatory) Data rates between 20kbps to 250kbps Range between 10m to 30m |