Fwd: How to send string to an arduino device ?

[Domotique]

hello james,

do what I want is quite simple:
I have xtension with an arduino interface on one side which is connected by wifi with an ESP32 itself connected to a nextion touch screen.

the esp32 with the screen allows me to transmit bi-directionally ON and OFF as well as values ​​such as temperatures, voltage and others. 
but what I would like is to be able to transmit messages from xtension to my screen (text alerts or other strings.)

the principle would be the following: in a unit of the arduino interface, the modification of the description (description unit changed) transmits the text as it is in the description of the unit to (ESP32, esp8266,arduino)  .
in the ESP 32 we recover the address (like ,for ON OFF and VALUE) of the unit and the text. then everyone treats the text in their own way.

actually with have with your arduino library 

arduino to xtension
ON,OFF,VALUE,DESCRIPTION, WRITE LOG


xtension to arduino:

ON,OFF,VALUE (DESCRIPTION is missing)

thank’s 

Eric
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