Crownstones react to your presence and can turn on the lights when you enter the room automatically! Now you can overrule their behavior by Alexa voice commands. For example, tell Alexa to dim the lights when you want to watch a movie to create a nice atmosphere! You need physical Crownstones to make this happen. The Crownstones can be bought online.
It is easy to start to use Alexa if you have Crownstones:
Technically, this is what will happen when you say “Alexa, turn on the living room light”. The voice command is recognized by Alexa, it then goes to the Amazon servers, initiates a request to the Crownstone cloud, sends a push message via Apple/Google to your iPhone or Android device, which will then control the Crownstones.
Enjoy your voice-controlled home!