Gist of setting up Raspberry Pi

README.md

Setting Up Raspberry Pi

Disabling Serial TTY (For EnOcean Pi)

Edit /boot/cmdline.txt and remove any references to serial1 or ttyACM0

Setting up NodeJS: The Easy Way

0. cat /proc/cpuinfo to determine CPU arch
1. wget https://nodejs.org/dist/vX.Y.Z/node-vX.Y.Z-linux-armv??.tar.gz
2. tar -xzf node-vX.Y.Z-linux-armv??.tar.gz
3. node-v6.2.1-linux-armv6l/bin/node -v
4. cd node-v6.2.1-linux-armv6l/
5. Remove all README, CHANGELOG and LICENSE files (optional)
6. sudo cp -R * /usr/local/

Setting up NodeJS: The Neat Way

0. cat /proc/cpuinfo to determine CPU arch
1. wget https://nodejs.org/dist/vX.Y.Z/node-vX.Y.Z-linux-armv??.tar.gz
2. sudo mv node-vX.Y.Z-linux-armv??.tar.gz /opt
3. tar -xzf node-vX.Y.Z-linux-armv??.tar.gz
4. cd /opt
5. sudo tar -xzf node-vX.Y.Z-linux-armv??.tar.gz
6. sudo mv node-vX.Y.Z-linux-armv?? nodejs
7. sudo rm node-vX.Y.Z-linux-armv??.tar.gz
8. sudo ln -s /opt/nodejs/bin/node /usr/bin/node
9. sudo ln -s /opt/nodejs/bin/npm /usr/bin/npm

Setting up git

1. sudo apt-get install git
2. git config --global user.name "v-i-s-h"
3. git config --global user.email get.vichu@gmail.com

Installing Mosquitto with Websockets

Install official Mosquitto from debian repo

1. sudo apt-get install mosquitto

Configure Websockets

1. Edit /etc/mosquitto/conf.d/mosquitto.conf like

   port 1883
   protocol mqtt
   
   listener 1884
   protocol websockets
   

2. For auto start on boot:
   1. sudo nano sudo nano /lib/systemd/system/mosquitto.service
   2. Put contents as

   [Unit]
   Description=Mosquitto MQTT Broker daemon
   ConditionPathExists=/etc/mosquitto/conf.d/mosquitto.conf
   After=network.target
   Requires=network.target
   
   [Service] 
   Type=forking 
   RemainAfterExit=no 
   StartLimitInterval=0 
   PIDFile=/var/run/mosquitto.pid 
   ExecStart=/bin/sh -c "/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf -d"
   ExecReload=/bin/kill -HUP $MAINPID 
   Restart=on-failure 
   RestartSec=2
   
   [Install] 
   WantedBy=multi-user.target
   

   3. sudo chmod 644 /lib/systemd/system/mosquitto.service
   4. sudo systemctl daemon-reload
   5. sudo systemctl enable mosquitto.service
   6. sudo systemctl start mosquitto