I have sniffed the packets using Wire shark , it sends the keep alive with default value of 15. I don't know why?
sniff : to smell something by taking air in through your nose:
와이어 샤크로 패킷의 냄새를 맡았다고 표현하다니 ㅋㅋ
If you never call mqtt.loop() then you are never allowing the client to check if there are incoming messages to read from the network, so the callback will never be called.
니가 mtqq.loop()를 부르지 않는다면, 클라이언트가 체크할지 절때 허용안해 / 들어오는 메시지가 있는지/ 네트웤으로부터 읽을, 그래서 / 그 콜백은 네버 콜되지 않을거야.
You should set the keepalive to something > 0 and ensure you call loop if you want the client to receive messages.
너는 그 keepalive 를 셋해야해/ 0이상 무언가로.
그리고 보장해/ 루프를 콜하게. 만약 니가 원하면/ 그 클라이언트가 메시지 받을것을/
ref:https://github.com/knolleary/pubsubclient/issues/344
I am not inclined to change the default value. It had been 15 seconds for 7+ years. If anything, we will make it easier to customise and not rely on editing the header file.
if anything : 어느쪽이냐면,
you can take credit for advancing the entire industry to where it is today, and enabling us to do what we do!
넌 공이 있어/그 전반적 산업을 진전시키는데에...
