Is there any way to retain the incoming data from MQTT, When the node-red running pc is off ?
If you make the MQTT topics Retained then when you power back up again any MQTT In nodes subscribed to those topics will get sent the latest values published to the broker. This tutorial will explain about Retained Topics and also pretty much all you will ever need to know about MQTT: MQTT Essentials - All Core Concepts explained
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Thank you
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