Tag Archives: google assistant

Node-RED Google Home Smart Home Action

Google Home

Following on from my Alexa Home Skill for Node-RED it’s time to see about showing some love to the Google Home users (OK, I’ve been slowly chipping away at this for ages, but I’ve finally found a bit of time).

One of the nice things about Google Assistant is that it works all over the place, I can use it via the text interface if I’m somewhere and can’t talk, or even from the car via Android Auto.

Screenshot_20190101-170716

Google offer a pretty similar API for controlling Smart home devices to the one offered by Amazon for the Alexa so the implementation of this was very similar. The biggest difference is the is no requirement to use something like Amazon’s Lambda to interface with the service so it’s just a single web endpoint.

I’ve taken pretty much the same approach as with the Alexa version in that I have a Web Site where you can sign up for an account and then define virtual devices with specific names and characteristics.

Virtual devices

Google support a lot more different types of devices and characteristics than Amazon with Alexa at the moment, but to start with I’m just supporting Sockets/Light/Switches and Thermostats. I intend to add more later as I work out the best way to surface the data.

The other big change is that Google Assistant supports asynchronously updating the device state and the ability for the Assistant backend to query the state of a device. To support this I’m going to allow the response node to be configured with a specific device and to accept input that has not come from an input node.

The node is currently being beta tested, if you are interested post in #google-home-assistant on the Node-RED Slack and I can add you to the ACL for the beta.

Google Assistant Node-RED Node

I’ll do another post when the node has finished testing and has been accepted by Google.