Prysmalight-pi

How to run

• Make sure the Raspberry pi 3 is set up correctly (Section below)
• SSH into your raspberry pi (Default Password is PrysmaPi)
• Navigate to the lightapp2-pi folder
• Run docker-compose up -d and it should work
  • Note: This may take a while the first time as it needs to pull the images from docker cloud

How to Upgrade

• SSH into your raspberry pi
• Navigate to the lightapp2-pi folder
• Run docker-compose pull
  • Note: This may take a while as it needs to pull the images from docker cloud

How to setup the Raspberry Pi 3

Change Hostname/Password

• Open Hosts File
  • sudo nano /etc/hosts
  • Change raspberrypi to prysma
• Open Hostname File
  • sudo nano /etc/hostname
  • Change raspberrypi to prysma
• Change Password
  • passwd

Set up Headless Wifi Configuration

• TODO

Clone the git repo or just download the file

• Update the RPI
  • sudo apt-get update
  • sudo apt-get upgrade
• Install git if you havent already
  • sudo apt-get install git
• Clone the repo
  • git clone https://github.com/Rooknj/prysmalight-pi.git

Install and setup Docker and Docker-compose

• Install docker using this script
  • curl -fsSL get.docker.com -o get-docker.sh && sh get-docker.sh
• Setup docker for use without having to type in sudo every time
  • sudo groupadd docker
  • sudo gpasswd -a $USER docker
• Either logout and then log back in, or run newgrp docker for the changes to take effect.
• Test this is working correctly
  • docker run hello-world
• Install docker-compose using pip
  • sudo apt install -y python python-pip (if pip and python are not installed)
  • sudo pip install -U docker-compose
• Run Docker Containers
  • docker-compose up -d in prysmalight-pi directory

Set up Prysmalight Service (TODO: Implement Update Service/Make start a daemon (with forever? This might not be needed with Restart=always))

• sudo nano /etc/systemd/system/prysmalight.service

  [Unit]
  Description=Prysmalight start script
  Requires=docker.service
  After=docker.service
  
  [Service]
  Restart=always
  ExecStart=/usr/bin/prysmalight start
  ExecStop=/usr/bin/prysmalight stop
  
  [Install]
  WantedBy=local.target

• enable service
  • sudo systemctl start prysmalight.service
  • sudo systemctl enable prysmalight.service
• disable service
  • sudo systemctl stop prysmalight.service
  • sudo systemctl disable prysmalight.service

Install Prysmalight

• Install Node
  • curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
  • sudo apt-get install -y nodejs
• Test to see if node is working
  • node -v
• Install Prysmalight Globally
  • ``sudo npm install -g prysmalight@latest
• Run Prysmalight

Add mDNS advertisement for MQTT server

• Create the file /etc/avahi/services/mqtt.service
• Paste this inside:

<?xml version="1.0" standalone='no'?>
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<service-group>
 <name replace-wildcards="yes">MQTT on %h</name>
  <service>
   <type>_mqtt._tcp</type>
   <port>1883</port>
  </service>
</service-group>

• Reboot to take effect

Working with homebridge

Homebridge User Interface

• Located at prysma.local:8080
• default user and pass: admin

We are using homebridge-mqtt to interface with homekit

• Follow the API here: https://www.npmjs.com/package/homebridge-mqtt
• Service and characteristic names defined here : https://github.com/KhaosT/HAP-NodeJS/blob/master/lib/gen/HomeKitTypes.js

Adding a light to homekit

• Publish this to prysmalight/to/add

{
  "name": "<Device ID>",
  "service_name": "<Display Name>",
  "service": "Lightbulb",
  "Brightness": "default",
  "Hue": "default",
  "Saturation": "default"
}

Removing a light from homekit

• Publish this to prysmalight/to/remove

{
  "name": "<Device ID>"
}

Add homebridge to homekit

• SSH into your raspberry pi 3
• Navigate to the prysmalight-pi folder
• Run docker ps
• Find the correct container id for the homekit container
• Run docker logs <CONTAINER-ID>
• Find the homekit QR code and add it