Your new topic does not fit any of the above??? Check first. Then post here. Thanks.

Moderator: igrr

User avatar
By stern0m1
schufti wrote:yes, by connecting to an external server. You don't have to actively poll it, you just keep the port open and the server will contact you -> MQTT etc

With MQTT do have to be always checking if the connection is still opened? And how many bytes of data is sent to check if it's opened?
I want an idea of the data usage just to keep it opened.