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In this Question how does the code Processing work? Which programming language is it written in? How to run it?

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Note that you aren't required to use Processing in order to communicate with the Arduino; the Arduino uses standard serial communications, supported by almost every programming language in one form or another. – Ignacio Vazquez-Abrams Apr 18 at 12:27
    
Can I use C++? If so, how? I know basics of C++, so it will be easier for me. – Mathsman 100 Apr 18 at 15:59
    
Can C++ support standard serial communications? – Ignacio Vazquez-Abrams Apr 18 at 16:01
    
@IgnacioVazquez-Abrams , Yeah, but very long and difficult process. – Mathsman 100 Apr 18 at 16:06

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"Processing" is a simplified programming language/environment based on Java. It's designed to be very easy for non-programmers to use, and is quite a popular choice for using alongside Arduino projects.

You can download it for free (and get lots of tutorials/documentation) from here:

As a side note, the Arduino IDE was based on Processing, so it will probably look familiar!

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Oh!Thanks a lot for the information. – Mathsman 100 Apr 18 at 12:08
    
how to run Processing programs alongside Arduino? – Mathsman 100 Apr 18 at 12:11
    
@Mathsman100 You run Processing on your PC or Mac or whatever and generally communicate with the Arduino via serial connection (USB). – Peter R. Bloomfield♦ Apr 18 at 12:13
    
So, do you first run the Processing program or do you open the Serial port before that? – Mathsman 100 Apr 18 at 15:58
    
@Mathsman100 Your Processing program needs to open the serial port. There are lots of tutorials online which you might find helpful. Here's one: learn.sparkfun.com/tutorials/connecting-arduino-to-processing – Peter R. Bloomfield♦ Apr 18 at 17:09

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