[3.1 简单描述符](3.1%20%E7%AE%80%E5%8D%95%E6%8F%8F%E8%BF%B0%E7%AC%A6.md) [3.2 通信原理](3.2%20%E9%80%9A%E4%BF%A1%E5%8E%9F%E7%90%86.md) [3.3 数据发送API简介](3.3%20%E6%95%B0%E6%8D%AE%E5%8F%91%E9%80%81API%E7%AE%80%E4%BB%8B.md) [3.4 ZigBee 3.0 通信实验](3.4%20ZigBee%203.0%20%E9%80%9A%E4%BF%A1%E5%AE%9E%E9%AA%8C.md)