蓝牙BLE ATT剖析（一）

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一.概述

The attribute protocol allows a device referred to as the server to expose a set 
of attributes and their associated values to a peer device referred to as the 
client. These attributes exposed by the server can be discovered, read, and 
written by a client, and can be indicated and notified by the server

二.架构

三.ATT DATA FORMAT

四.PDU总结

1.PUD ID

 

2.PDU requst and reponse

           

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