Crate gatt[−][src]
Expand description
Bluetooth Low Energy Generic Attribute Profile
ref BLUETOOTH CORE SPECIFICATION Version 5.1 | Vol 3, Part G Generic Attribute Profile (GATT)
Example
use gatt::{CharacteristicProperties, Registration, Server}; use gatt::services as srv; use gatt::characteristics as ch; #[derive(Debug, Clone, PartialEq, Eq, Hash)] enum Token { DeviceName, BatteryLevelNotify, } fn new_registration() -> Registration<Token> { let mut registration = Registration::new(); registration.add_primary_service(srv::GENERIC_ACCESS); registration.add_characteristic_with_token( Token::DeviceName, ch::DEVICE_NAME, "abc", CharacteristicProperties::WRITE, ); registration.add_characteristic( ch::APPEARANCE, 0x03c0u16.to_le_bytes().to_vec(), CharacteristicProperties::READ, ); registration.add_primary_service(srv::GENERIC_ATTRIBUTE); registration.add_characteristic( ch::SERVICE_CHANGED, "", CharacteristicProperties::INDICATE, ); registration.add_primary_service(srv::DEVICE_INFORMATION); registration.add_characteristic( ch::MANUFACTURER_NAME_STRING, "機械", CharacteristicProperties::READ, ); registration.add_characteristic( ch::MODEL_NUMBER_STRING, "A123", CharacteristicProperties::READ, ); registration.add_characteristic( ch::SERIAL_NUMBER_STRING, "333-444", CharacteristicProperties::READ, ); registration.add_primary_service(srv::BATTERY); registration.add_characteristic_with_token( Token::BatteryLevelNotify, ch::BATTERY_LEVEL, "", CharacteristicProperties::NOTIFY, ); registration } #[tokio::main(flavor = "current_thread")] async fn main() -> anyhow::Result<()> { use std::io::stdin; use tokio::task::spawn_blocking; use tokio::io::AsyncWriteExt; let mut server = Server::bind()?; let mut connection = server.accept(new_registration()).await?.unwrap(); let mut events = connection.events(); let mut notification = connection.notification(&Token::BatteryLevelNotify)?; let task = connection.run(); tokio::pin!(task); let mut n = 0; loop { tokio::select! { r = Pin::new(&mut task) => { r?; break; } maybe_line = spawn_blocking(|| stdin().read_line(&mut String::new())) => { maybe_line??; notification.write_all(&[n]).await?; n += 1; } event = events.next() => { if let Some(event) = event { println!("{:?}", event); } } } } // ... }
Supported target
- x86_64-unknown-linux-gnu
Tested on Linux 5.13 (Arch Linux)
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT) at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.!
Re-exports
pub use crate::server::Server;
Modules
Structs
Enums
16bit or 128bit UUID