恩想请教下BLE里面的GATT,这是不是主要来负责数据的传输,比如外设和主机?恩核心的数据发送的API是什么,接收又是什么机制。
还有就是GATT这边有service和client,是不是意味着对于收发数据的主机和外设来说,GATT Service在主机上配置,而从机配置为GATT Client吗,这两个配置的区别又在哪里呢?
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