Install ROSSerial Package

1.Introduction

In order to use the rosserial libraries in your own code, you must first put
```
#include <ros.h>
```
prior to including any other header files, e.g.
```
#include <std_msgs/String.h>
```

Installing on the ROS workstation
- You have 2 options of how to install related libraries.
(RECOMMENDED) Installing Binaries on the ROS workstation
- You can install rosserial for Arduino by running:
```
sudo apt-get install ros-indigo-rosserial-arduino
sudo apt-get install ros-indigo-rosserial
```
Installing from Source onto the ROS workstation
- These commands clone rosserial from the github repository, generate the rosserial_msgs needed for communication, and make the ros_lib library in the <ws>/install directory
```
cd <ws>/src
git clone https://github.com/ros-drivers/rosserial.git
cd <ws>
catkin_make
```
Install ros_lib into the Arduino Environment
- you have to deletelibraries/ros_lib in order to regenerate as its existence causes an error.
```
cd <sketchbook>/libraries
rm -rf ros_lib
rosrun rosserial_arduino make_libraries.py .
```
- If you are building the Arduino on Windows, you need to create the ros_lib folder in some convenient directory.
```
cd <some_empty_directory>
rosrun rosserial_arduino make_libraries.py .
```