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ESP Mesh Time Synchronization Query (IDFGH-15514) #16153

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@gajananmaske1234

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@gajananmaske1234

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Hi all,

I have implemented ESP-MESH communication where multiple slave nodes send data to a master node. The master uploads the data to the cloud and then enters deep sleep for 1 hour to save power.

Currently, I am facing issues with time synchronization between the master and slaves. Since the master sleeps for 1 hour, the slaves and master clocks go out of sync. This causes timing mismatches in data collection and processing.

My requirement is to keep the time synchronized across all nodes so that both slaves and master wake up aligned every hour. The master should ideally sync its time with the slaves either before going to sleep or right after waking up.

Has anyone successfully implemented time sync in ESP-MESH under these conditions? What are the best practices or APIs for synchronizing time in ESP-MESH when the master uses deep sleep for long durations?

Thanks in advance!

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