Help understanding Homie terminology: Device and Controller

[dcj]

An IoT device publishes data and provides interaction possibilities but a controlling entity will need to be specifically configured to be able to interface with the device.

Homie specifies homie/device/node/property

The "device" is the the entity that publishes a representation of itself (including its nodes, each node's properties, and recursively, any device-children, correct?

And a "controller" is a MQTT client that subscribes to various MQTT topics as per the convention, discovers Homie entities, and to the extent that a device/node/property is settable then the client/controller can publish to those topics in order to "control" the represented entity, correct?

[schaze]

That is correct. Official descriptions for controllers are documented here: https://homieiot.github.io/implementations/

I think it would make sense to actually add them to the spec itself. As the spec references device and controller but never clarifies the terms. (It does for a device on a structural level but not necessarily on a role level)

[dcj]

I think it would make sense to actually add them to the spec itself. As the spec references device and controller but never clarifies the terms. (It does for a device on a structural level but not necessarily on a role level)

+1000
I am going to create an issue to this effect, which you are (obviously) free to deal with as you see fit