#arduino-class-library-helloworld

##About A tiny example based on LED13, to demonstrate how to use libraries and C++ classes for Arduino programming.

###Hands On

####1. Connections Well known LED13 sample connections:

• Pin 13 to LED Positive.
• Led Negative to Resistor (330 Ohms for Starter's Kit's LEDs).
• Resistor to Ground.

You can easily change this connections configuration by wiring it different in your circuit and, of course, changing the code properly.

In this case:

const byte LED_PIN = 13;

Replace "13" for the pin used to connect the LED's Positive.

####2. Steps

1. Clone the repository.
2. Open the ClassLibraryHelloWorld/ClassLibraryHelloWorld.ino with your Android IDE (If you have not installed it, please follow the steps indicated here).
3. Import the library by pointing the LED13 folder packaged with the code (if you don't know how to install a library, you need to read this).
4. Connect your Arduino circuit to the USB.
5. Deploy the program.

####3. What should you see? The led blinking with a 3 secs interval (you can vary this by changing your code as follows)

led.blink(3000);  // 3000 milliseconds: Change this value to modify the blink interval.

##Motivation Even though creating classes and libraries seems to be an easy task, there are a couple of challenges to face when starting. Documenting the basic steps seems to be a good idea.