| 摘要 |
In one example, a door notification system includes a wireless batteryless switch associated with a door and a receiver coupled to a lighting load and to a sound-emitting load. The receiver is operable to provide a door notification in response to a signal from the wireless batteryless switch. The door notification includes at least one of a flash of the lighting load or a sound from the sound-emitting load. In one example, a door notification system includes a wireless batteryless switch associated with a door and a portable receiver that is operable to plug into an electrical outlet and that includes a built-in sound-emitting load. The portable receiver is operable to activate the sound-emitting load to produce an audio signal in response to a signal from the wireless batteryless switch. |
