Doorbell rings then LED off and mute my projector

Optoma aims to deliver engaging visual and audio experiences for a connected world. Your connected projectors can be automated with other devices to blend seamlessly into your smart home ecosystem.
A shortcut provides a quick way to get things done with your apps, with just a tap or by asking Siri. Shortcuts can automate a wide variety of things on your iOS devices. This service requires the IFTTT app for iOS.