Check messages node-gateway
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I understand that ACK is used to verify the message delivery from the node to the controller end-to-end, and the ACK bit management must be done in the sketch. What about the messages between node and gateway? Are there an automatic mechanism to check the delivery to the gateway? When the function send() is called, it send the message only once to the gateway or is trying several times? Thank you.
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The message is send only once, indicating that the node is requesting an ACK. The controller needs to handle the ACK and send a response to the node via the gateway. The node does not resend the message if no ACK is received, that needs to be implemented in the sensor sketch, it is not part of the library.
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