The procedure is as follows:
(1) Download the Botslab app from Google Play or iOS App Store.
(2) Open the Botslab app to register or log in to the account.
(3) Turn on a smart device and connect it to the Botslab app.
(4) Rename the device used for voice control. For example, you can rename "bulb" as "living room lamp", so that you can speak "turn on the living room lamp" to control it.
(5) Download the google home app from Amazon Market, Google Play, or iOS App Store. Connect Nest Hub to the google home app.
(6) Log in to "Google home" app, click Add - Set up device - Have Something already set up - Botslab for account authorization, then log in to account, and the authorization can be completed.
(7) Say specific voice commands to the Google assistant to control your device.