refer to:http://wiki.ros.org/ROSberryPi/Installing%20ROS%20Indigo%20on%20Raspberry%20Pi
issue:
1)using Raspbian Jessie ,do not use wheezy because of some compiling dependency:.
2)coment gtest in catkin/cmake/test
3)change ROS_SWAPFILE ,ROS_SWAPSIZE in /etc/dhpy_swapfile
$ sudo apt-get install dirmngr
$ sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu jessie main" > /etc/apt/sources.list.d/ros-latest.list'
$ wget https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -O - | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get install python-pip python-setuptools python-yaml python-distribute python-docutils python-dateutil python-six
$ sudo pip install rosdep rosinstall_generator wstool rosinstall
$ sudo rosdep init
$ rosdep update
$ mkdir ~/ros_catkin_ws
$ cd ~/ros_catkin_ws
$ rosinstall_generator ros_comm --rosdistro indigo --deps --wet-only --exclude roslisp --tar > indigo-ros_comm-wet.rosinstall
$ wstool init src indigo-ros_comm-wet.rosinstall
$ cd ~/ros_catkin_ws
$ rosdep install --from-paths src --ignore-src --rosdistro indigo -y -r --os=debian:jessie
$ sudo ./src/catkin/bin/catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release --install-space /opt/ros/indigo
$ source /opt/ros/indigo/setup.bash
$ echo "source /opt/ros/indigo/setup.bash" >> ~/.bashrc