Sometime, the callback is not trigger when message is sent by the sender. I am very sure that the message is sent because the Openhab Habpanel and mqtt fx at my desktop has received the message. Is it EL-Client or ESP-Link problem? I have no effective way to debug this.
When disconnected from MQTT, the current reliable way is to perform a soft reset at Mega2560 so that ESP-Link and El-client can establish the connection. Is there another method without performing the soft reset?
I have put together a smart home control panel using ESP-link and EL-client using the ESP8266 + Mega2560 combi board.
The write-up can be found here.
I have 2 issues: