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The MQTT TCP - using SIM800
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September 30, 2020
6:01 am
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September 30, 2020
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I'm developing the MQTT TCP for the SIM800 module, to publish and subscribe channel Thingspeak.
There is an issue related to the TCP connection between the SIM800 and Thingspeak server.
After 1 hour running, whenever I publish data to channel (successful), the TCP connection is closed,
although the conenction is still in alive time.

My setting:
+Publish data interval: 1 min
+Keep alive: 10 sec
+Mqtt server:
+Port: 1883

Plz help me!

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