I am using an M5Stick CPlus to read some MQTT data and display the results on the unit's LCD screen. The MQTT message sent is (simplified) something like '2G' In the Callback function the MQTT message is stored in Data[0] and Data[1]. Also in Callback I set a boolean NewMsg=true to indicate the a…

Variable from MQTT Callback not passed

system Closed December 31, 2021, 5:06pm 5

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