oke wenne machan nodemcu eken hadanawa web server ekak eka haduwama normal website ekak wage uba connect wela inna wifi range eke ip ekak set wenawa nodemcu ekata e ip eka gahala. 192.168.1.4 kiyamuko, meka gahala ube light eka on off karana page eka access karanna puluwan eke ithin ubata parameter ekak yawala e yawana parameter eka anuwa ex : 192.168.1.4/?bulb1=1 or 192.168.1.4/?bulb1=0 balala mcu eken adala pin ekata signal ekak yawanawa (high/low). ethakota tiyenne uba relay ekak ekka 230v AC line ekak on/off karaganna.
INTERNET CONTROLLED LED USING NODEMCU
https://www.instructables.com/id/Internet-Controlled-LED-Using-NodeMCU/