IOS App for control hardware through WIFI or WEB

I am new to this and this is my first IOS App. I am continually watching codewithchris YouTube and it is very impressive and motivate me to create an App.
I am looking for example code Swift to read and write a byte from a remote hardware (Arduino Board) through WIFI or through URL.
Example: I want to switch on a LED remotely and see the status of the LED back on my IOS App on my iPhone. Could anybody help me?

Welcome to the community @Wasa

This is a very old tutorial so I’m not sure it will work.

This one may be better, it’s newer, and raywenderlich is a great resource.

But if I were you I’d take more time to understand iOS development before jumping into this, because this is dealing with other libraries and concepts you may not fully understand yet

Hi Mik,
Really appreciate your reply and advice. When I get a chance I’ll try to understand this and get back to you.
Many Thanks again
Kind regards

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