We use the audio out dashboard component to provide Text-to-Speech (TTS) functionality to the Smart Doorbell application.

To add the audio out dashboard component, do the following:

1. You will find the audio out dashboard component under the dashboard section on the left. Click and drag the audio out dashboard component onto the canvas.
2. Connect the output of the function component to the input of the audio out dashboard component.
3. Double-click on the audio out dashboard component to enter the Edit audio out node dialog box.
4. Fill out the fields as shown in the following screenshot:

With all of the components added, it's time to run the Smart Doorbell application.