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Using CoAP to control master-slave structure [message #1713577]

Thu, 05 November 2015 09:38

Zue Hidden

Messages: 3
Registered: November 2015

Junior Member

I plan to create a structure that has an user app and multiple nodes. User can control and message with nodes by using user app. I have to use CoAP communication protocol in communication module in user app because of constraints in nodes.

I know that CoAP provides connectionless communication and one-to-one messaging. It looks alike HTTP protocol.

1) I want to program that data (message) should be sent from user app to a node and the node uses this data inside. (I think I must use "POST" methods of CoAP, am I right?)

2) The node sends data when the user app request.

For actions above(independent of each other), between user app and a node, which one is used as a server, which one is used as client? Which methods of CoAP should be used to provide these actions?

Please guide me at the beginning of my CoAP programming. Thanks.

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