Android Question B4A-Mosquitto, Connect & Reconnect

[kisoft]

Hi
I implemented this solution on the VPS server. MQTT Mosquitto broker. I have created a simple application that controls the relay. (Arduino sketch, ESP 8266).
https://www.b4x.com/android/forum/threads/b4x-mqtt-connect-reconnect.80815/#content

I noticed a small problem, when I turn off the application completely and turn it on again it does not show me the status of the relay.
I do not know if it should work this way or do I have to configure something on Mosquitto.

 

[Erel]

when I turn off the application completely

Which app?

There isn't enough information here to answer...

 

[kisoft]

HI
It's about the application on ANDROID.

 

[woniol]

Hi,
I think you need to read about retained flag in MQTT
https://www.hivemq.com/blog/mqtt-essentials-part-8-retained-messages/

 

[kisoft]

Thank you for the answer, of course I saw it, an excellent guide.

 

[kisoft]

Setting this flag has helped. It's working fine now