ndn-embedded

Raspberry Pi IoT Setup

======================

## Cross-compile:

[[Cross-compiling NDN projects for Raspberry Pi]]

* ndn-cxx

* NFD

## On the Pi:

Set up networking. Also, NFD uses ipv6 (as well as ipv4) so we need to enable that in the raspberry pi kernel because it's disabled by default.

    nano /etc/network/interfaces # Tweak networking as desired

    sudo vim /etc/modules # Add “ipv6”

    sudo reboot

Install the essentials

    sudo apt-get update

    sudo apt-get install git vim

    sudo apt-get install build-essential

Install libraries required by ndn-cxx, NFD, PyNDN2

    sudo apt-get install openssl expat libpcap-dev

    sudo apt-get install libssl-dev libsqlite3-dev libcrypto++-dev libboost-all-dev

Go git PyNDN2 and ndn-pi

    mkdir ~/ndn

    cd ~/ndn

    git clone https://github.com/named-data/PyNDN2.git

    git clone https://github.com/remap/ndn-pi.git

    echo "export PYTHONPATH=$PYTHONPATH:$HOME/ndn/PyNDN2/python:$HOME/ndn/ndn-pi" >> ~/.bashrc

Also since GPIO sensors must be run as root, environment variables are cleared. Specify to keep PYTHONPATH for sudo

    sudo visudo # Add “Defaults	env_keep += “PYTHONPATH”

Copy/install cross-compiled ndn-cxx and NFD files (bin, etc, include, lib) from host to /usr/local on target (Pi).

Install required pip and python packages

    wget https://bootstrap.pypa.io/get-pip.py

    sudo python get-pip.py

    rm get-pip.py

    sudo pip install pycrypto

    sudo pip install trollius

## If HDMI-CEC node

### Install libcec:

Can either be cross-compiled or compiled locally on the pi. Since it only needs to be done once, I just did it on the pi, but it took a bit. They do have a script for cross-compiling for the Raspberry Pi though.

    cd ~/ndn

    git clone https://github.com/Pulse-Eight/libcec

    sudo apt-get install autoconf libtool pkg-config

    sudo apt-get install liblockdev1-dev libudev-dev

    ./bootstrap

    ./configure --with-rpi-include-path="/opt/vc/include" --with-rpi-lib-path="/opt/vc/lib " --enable-rpi --enable-debug

    make

    sudo make install

    sudo ldconfig

### Install protobuf

Since just a 1 time thing, I just did it on the pi, but it took a bit.

    sudo apt-get install python-protobuf

### Create protobuf header

    cd ~/ndn/ndn-pi

    protoc --python_out=. cec_messages.proto