Bluetooth gatt. It is the structured communication model used by Bluetooth Low Energy devices to exchange data in a clear and organized format. This Part defines the GATT profile, its procedures, formats, roles and scenarios. GATT defines how data is stored, formatted, accessed, updated, and transmitted across BLE connections. Mar 24, 2026 · GATT is the protocol that defines how BLE devices expose data and accept commands. Apr 1, 2024 · Learn how GAP and GATT work together in BLE communication. Understand roles, data exchange, and why these layers matter in Bluetooth development. Understanding services, characteristics, and descriptors is essential for Aug 1, 2022 · Learn how Bluetooth LE devices communicate using ATT and GATT protocols. ATT defines roles and attributes for data transfer, while GATT provides a Generic Attribute Profile for data storage and access. Generic Attribute Profile (GATT) Just as the GAP layer handles most connection-related functionality, the GATT layer of the Bluetooth low energy protocol stack is used by the application for data communication between two connected devices. . A Profile doesn't actually exist on the BLE peripheral itself, it's simply a pre-defined collection of Services that has been compiled by either the Bluetooth SIG or by the peripheral designers. The Heart Rate Profile, for example, combines the Heart Rate Service and the Device Information Service. Learn how to use the Attribute Protocol to discover, read, write and configure services and characteristics on a Bluetooth device. The complete list of officially adopted GATT-based Dec 3, 2025 · GATT stands for Generic Attribute Profile. fmco dzayy qysg ktrg bnswyz