Selection of coordinator device for automated environment

An automated environment can include multiple controller devices capable of communicating with multiple accessory devices. The controller devices can automatically elect one of their number as a coordinator device for the environment and can automatically perform a new election if an incumbent coordinator becomes unavailable or resigns. The election processes can be transparent to any users. An elected coordinator can perform various operations to facilitate management of the automated environment including routing of communications between controllers and accessories. 种自动化环境可以包括能够与多个附件设备通信的多个控制器设备。所述控制器设备可以自动地选举它们的数量中的个来作为用于所述环境的协调器设备，并且可以在现任协调器变得不可用或者放弃的情况下，自动地执行新的选举。所述选举过程对任何用户都可能是透明的。所选举的协调器可以执行各种操作以有助于对所述自动化环境的管理，包括控制器和附件之间的通信的路由。