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I am doing some experiments with nodemcu 12 (which has built in esp8266). There most of the tutorials I found by internet describe how to connect to home wifi connection using it.

But when I power on nodemcu, I can see wifi network called "ESPXXX" in my laptop's wifi connection list.

So is there a way to directly connect to the wifi nw of esp8266 by my laptop or via another esp8266 (so I don't have to switch on my home wifi router)?

If it is possible, is there is way to change ssid of esp8266's wifi connection and add password (again this is not about connecting to home wifi and this is about the wifi connection on esp8266 it self)? So we can make one esp8266 as a wifi host and connect other esp8266s as slave to it.

I am using arduino IDE to upload program into esp8266 and not Lua.

Thanks.

share|improve this question
    
If you are programming in Lua then we do not know. I do know that it is possible to program (using the Arduino IDE plugins) the NodeMCU as a WiFi access point, and the SSID etc are up to you to select when you write the sketch. – Majenko Aug 28 at 10:45
    
Why did you tag your question "arduino-uno"? I see no Arduino UNO involved here, not even any Arduino at all. Could you describe your circuit? If there is no Arduino, then this is not a question for this site. – jfpoilpret Aug 28 at 13:16
    
Sorry it seems my question is not clear. I will modify it. – lsc Aug 29 at 5:55
    
That's a little better. But you should provide the details of the sketch you loaded, and what you expect it to do, especially network wise. If you have not loaded one yet, then that should be the obvious first step. – Chris Stratton Aug 29 at 6:09

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