Rust Bluetooth Low Energy (BLE) Host named "TrouBLE", the first release is available on crates.io
What is a Host?
A BLE Host is one side of the Host Controller Interface (HCI). The BLE specification defines the software of a BLE implementation in terms of a controller (lower layer) and a host (upper layer).
These communicate via a standardized protocol, that may run over different transports such as as UART, USB or a custom in-memory IPC implementation.
The advantage of this split is that the Host can generally be reused for different controller implementations.
Hardware support
TrouBLE can use any controller that implements the traits from bt-hci. At present, that includes: