Bluetooth LE microprocessor / module Bluetooth Low Energy Profile Developer's Guide
■This document guides developers of Bluetooth LE profiles for the following devices how to develop profiles using the Bluetooth LE development tool QE for BLE.
■This document is a re-edited version of the following documents integrated.
■RA4W1 Group Bluetooth Low Energy Profile Developer's Guide (R01AN5428)
■RE01B Group Bluetooth Low Energy Profile Developer's Guide (R01AN5638)
■RX23W Group Bluetooth Low Energy Profile Developer's Guide (R01AN4553)
●Overview of Bluetooth LE Data Communication
■In Bluetooth LE communication, Generic Attribute Protocol (GATT) is primarily used. GATT communicates in a client-server architecture.
■The communication protocol of an application that uses GATT Protocol is called a profile. Profiles are protocols developed for many applications. Profile communication is allowed between devices that supports same profile. A profile has one or more "Service" that represent the functionality of the application. A service consists of "Characteristic" that represent data structures and "Descriptor" that add information to the data in the characteristics.
■The server has a GATT database that manages data for the service. Application data is held in the GATT database as a characteristic of service. The GATT database is accessed by specifying an attribute handle that indicates where the data is stored.
■GATT defines Notify / Indicate operations for sending data from the server to the client and Read / Write operations for reading and writing the database by the client.
■Profile communication is established between peer-to-peer connected devices. A connection is established between a device (peripheral) that performs advertising operations and a device (central) that performs scan operations and connection operations.
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RX23W Group 、 RA4W1 Group 、 RE01B Group 、 RX23W 、 RA4W1 、 RE01B |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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Dec.27.22 |
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Rev.1.10 |
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R01AN6459EJ0110 |
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4.3 MB |
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