I recently bought and setup the google aiy voice kit, using the google assistant sdk. When I opened up my google home app, I noticed the voice kit being detected as a light, I was wondering if this could be changed so that I can use it a a google home like device (smart speaker).
The 'type' of device is mostly just used for semantic reasons. If I were to say "turn off the light", then the Google Assistant would be able to check the lights I may have connected to my account. (The Google Assistant SDK does not support remote execution of commands.)
The types of devices that exist are different from the capabilities or traits of a device. It does not prevent you from using the AIY kit as a smart speaker, and if you follow guides on registering a device model you can change the semantic type.