@startuml
skinparam BackgroundColor F0F0F0

participant "Worker Bluetooth" as workbt
participant "Service Bluetooth" as srvbt
participant "Application Settings" as appsett

activate appsett
appsett->srvbt : start scanning msg
    activate srvbt
    srvbt -> workbt : command(scanOn)
        deactivate srvbt
        activate workbt
        workbt -> workbt : scanOn
        loop
            [o-> workbt : device detected
            activate workbt
            workbt -> appsett : available device msg
            deactivate workbt
            activate appsett
                appsett -> appsett : process
            deactivate appsett
        end
appsett->srvbt : stop scanning msg
    deactivate appsett
    activate srvbt
    srvbt -> workbt : command(stanOff)
        deactivate srvbt
        deactivate workbt

@enduml