user20091: I want to create arduino sketch that start program on my computer (i.e., browser) when I push button on Arduino itself.
Is it possible to make it using Arduino uno? I already know how to make a serial connection between PC and Arduino and use Processing software, but as I know, Processing cannot interact with another programs.

user7856: You can also make the Arduino look like a keyboard/mouse to the PC and then reproduce some key combo that will perform the action you want.
See reference here.

user4143: Processing is just Java.  If Java can do it Processing can do it.
And Java can do it.
Just ask Google about the Java ProcessBuilder class.

20091: <p>I want to create arduino sketch that start program on my computer (i.e., browser) when I push button on Arduino itself.</p>

<p>Is it possible to make it using Arduino uno? I already know how to make a serial connection between PC and Arduino and use Processing software, but as I know, Processing cannot interact with another programs.</p>
 7856: <p>You can also make the Arduino look like a keyboard/mouse to the PC and then reproduce some key combo that will perform the action you want.
See reference <a href="https://www.arduino.cc/en/Reference/MouseKeyboard" rel="nofollow">here</a>.</p>
 4143: <p>Processing is just Java.  If Java can do it Processing can do it.</p>

<p>And Java can do it.</p>

<p>Just ask Google about the Java <code>ProcessBuilder</code> class.</p>
