In the code below :
Wearable.getMessageClient(applicationContext).sendMessage(node,label,data)
What's the point of node parameter ? I am able to send & receive data , no matter what value i use for the node.
What's the use of WearOS "node" parameter in wearAble APIs?
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A node is simply a connected device:
For more details how to detect available nodes, and understand their capabilities, see the official documentation.