Hello Guys I use an ESP32 and connect it to AWS IOT. After connecting to Wifi and IOT I publish an empty message to the topic "$aws/things/chicken-door/shadow/name/door/get" AWS IOT has some logic. So the empty message to this topic triggers a new message to the topic "$aws/things/chicken-door/sh…

I'm running out of ideas now, the only other things I can think to suggest is subscribing to the specific get/accepted & get/rejected topics instead of the wildcard /# topic to see if AWS expects the exact match. Also remove false from the publish line. if (!client.publish(AWS_IOT_GET_SHADOW, "", f…

ESP32 MQTT onMessage Callback never called

Other Hardware 3rd Party Boards

p0der November 24, 2021, 8:13am 3

I am currently using this client: GitHub - 256dpi/arduino-mqtt: MQTT library for Arduino as it was recomended by AWS.

So you suggest to use the PubSubClient instead?

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ESP32 MQTT onMessage Callback never called

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