Based on information from Dirigera license and boot logs (has been shared here) the hub is no longer using COAP for communication between the mobile app and hub but either WebSockets of MQTT. Given that internally it’s running Mosquitto MQTT broker (DIRIGERA/boot.log at 2f10091eba9471f13cf9dfea1c30dbe651aa40e4 · wjtje/DIRIGERA · GitHub), most likely it’s MQTT. Also, it seems that a lot of application-level software is written in NodeJs.
The hub has 3 open ports: 8000, 8082, and 8443. Has anyone tried to decompile the new Ikea App for Android and figure out the protocol?
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