A general help *Completely new to Arduino*

If you read my last reply you can find why I am using 3 boards!

I don't mind losing the one attached to the PC at all!

Here is an example of an API I prepared with a live feed of 9 digits:
https://api.thingspeak.com/apps/thinghttp/send_request?api_key=E0O0TZV9OZMBP4K1

And yes, the look of the board is important since this should fit the surrounding drawings and materials (And that's why I am using 3 boards not one)!