With blokdots and ProtoPie, you can connect an Arduino with your software prototype and control them in both directions. Like toggling an LED from your smartphone or controlling your GUI with a potentiometer.
Simply connect the prototypes like you are used to with IFTTT and mapping cards in blokdots, and update variables in ProtoPie.
Want to see how it works? Check out the example!ProtoPie Example
Learn more about the other features of blokdots