A general help *Completely new to Arduino*

ishabana:
The project basically should have 3 standalone Arduino boards, each should read a number from an online API, then send it to a center board (Arduino as well but connected to a machine) where I want to do some math with the received numbers, then send to a machine (PC) where I am taking it from there and use these data in other platforms I am familiar with (ex. Quartz composer and processing).

I may have misunderstood this but it seems to me to be saying

  • get 3 items of data from the internet
  • do some calculations
  • send the data to a PC
  • have the PC send the data to something else

Why can't all that be done a lot more easily on the PC without any need for an Arduino, never mind 4 Arduinos?

...R