Sending a HTML message without opening a page

Hi Everybody,

I have a microcontroller which host its own webpage via its IP with a button which changes the URL.
The microcontroller reads this URL and turn's a led on/off.
for example when you press the button on the page the URL will become

I want to be able to have a button in App inventor which send this exact same thing without opening a web browser.
Since i am new to app inventor i dont know to send this HTML request.
Let me know if anybody has an idea.

Thank you in advance,


The Web component is perfect for this.

Sample apps: