So The client I am using (using the example published on this site forWIFI connected relay) uses one module and one parameter.
Online I can see it.
It seems easy also on client side to get parameter2. Seems easy to add parameter on server.
I want one esp8266 to have several modules. (several relays)
At the same time, I would like that when I hit on or off on MQTT GUI to control parameter I send. Either 1 or 0, or other combination 12345 ot 987665.
Idea is that I built a gateway WIFI to RF using ESP8266 to control RF power outlets.... and ideally using MQTT directly. Other option is to create a wrapper app to behave as MQTT multiples clients and use standard HTTP protocols to the gateway....