Ahnaf, thanks for the Arduino project! Good electrical engineering sort of stuffs where you can use your mobile phone to turn on/off a LED light :) Reading thru was simple, but I am assuming the setup will take some time. Thanks for posting all the links from where I can purchase these hardwares. I have a few questions....1) How long did it take you to do this project and make it work? I am sure there were bumps along the way....2) Which coding language did you use to turn on/off the LED? 3) The code you submitted is the entire code to make the LED on/off or is it just a section?

For all of those who wants to see the Arduino project, here is the link from google drive:
https://drive.google.com/drive/folders/1iyN6y-pctJ-2ambrjX492Q7u7YB6AfcU

The picture is a screenshot of the phone (with the Arduino app) from where you are controlling the LED light to turn on or off.