More intelligent send retry management with ACK

[asoltesz]

Currently, even if ACK is set, the code will not check if the sending was successful and resends the message as many times as specified with setRetries().

A better and more logical behavior would be if ACK and retries worked together and sending retries would only happen if no ACK was received from the gateway for the message. That would also decrease power consumption in comparison with unconditional retries.

[user2684]

Hi, interesting suggestion. But I wondering if feasible outside the MySensors library (e.g. in NodeManager) or if it is something supposed to be part of the core code. Do you have by chance a sample code to share just to understand better? Thanks