B4R Question ESP8266+rhttputils2+LCD

Hello,

As I have asked my question here: https://www.b4x.com/android/forum/threads/a-newbie-question.98247/

Now I am ready to try the b4r. I have my 8266 and LCD screen , I also have the arduino but I won't use it I think. I have found the getting started with 8266 topic : https://www.b4x.com/android/forum/threads/esp8266-getting-started.68740/#content

Is it where should I start ? I am totally new so I don't know where to start How can I make the connections between the LCD and ESP8266 , I have found some diagrams but they are not exatly the same so where should I get some tips about this ?

Also I assume, getting data from rhttputils is not the same as b4i and b4a, is there a specific example to get a json data ?

In short, I am confused about where to start. What would you recommend ?