Thanks, I succeeded to send 2 data to 1 stream.
I have one question.
I set light sensor from “BUILD->Device->Resource” windows and created “light” streams.
If I create this multiple resources at Edge action, I saw this data in “Default” streams, too.
How many message do I use, only 1 message or 2 message?
Messages can be generated via observations directly to the cloud or sent to the edge actions for instance. The edge action (on the device) can be programmed to send the data to the cloud or perform some action on the device without sending a message to the cloud. If your edge action sends data to 2 cloud streams, that is counted as 2 messages.
If you send data via observations via 2 paths, one direct to the cloud (:default) and one to and edge action that then sends the data to another stream, that will be 2 messages.