Hello, I’m setting up a mqtt client on an Arduino with PubSubClient. However I’m struggling with the right way to publish a topic with a retain flag. I can’t get it right. I’ve been looking in the PubSubClient API but I cannot find what I’m doing wrong [image] [image] [image] Does anyone k…

In the future, please paste code as text, not as screenshot. Regarding the problem: These are the possible overloads of the function knolleary/pubsubclient/blob/2d228f2f862a95846c65a8518c79f48dfc8f188c/src/PubSubClient.h#L151-L154 boolean publish(const char* topic,…

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MQTT PubSubClient

leonardoMTB November 7, 2020, 10:33am 5

Thank you very much for your help Max, greatly appreciated !

Best wishes
Leo