GATTprofiilia

GATTprofiilia, or GATT profile, is a standardized way to organize Bluetooth Low Energy (BLE) communication around a specific use case. It is built on the Bluetooth GATT protocol and defined by the Bluetooth Special Interest Group (SIG). A profile specifies how data is structured and exchanged to achieve a particular function across BLE devices.

In GATT, devices operate in a client–server relationship. The server hosts attributes arranged into services and characteristics, each identified by a UUID. A client discovers available services, reads or writes characteristic values, and can enable notifications or indications to receive asynchronous updates. Security and privacy considerations may apply, including pairing and encryption.

Profiles combine one or more services and characteristics and define data formats, measurement procedures, and interaction sequences required to fulfill the use case. Examples include the Heart Rate Profile, which uses the Heart Rate Service and its measurement characteristic, the Battery Service for battery level, and the Device Information Service for manufacturer and hardware data.

Adoption and interoperability: devices implementing the same GATTprofiilia can interoperate with compatible software and other devices. Standard profiles published by the Bluetooth SIG support common devices such as wearables and sensors, while vendors may also define proprietary profiles for specialized applications. Developers implement a GATT server on hardware and a GATT client in software to enable these interactions.