lightnet

Lightmanagement Server to control room lighting

Setup

You will need a recent version of node js (http://nodejs.org/). To configure, install and start run:

npm install
node setup.js

Tested on Raspbian and OSX.

Install on Raspberry Pi Zero

Make sure the Device is connected to the network.

sudo apt-get install mongodb
git clone https://github.com/mostley/lightnet.git
npm install
node setup.js

Choose local as DB Option.

Features

• Discovery of handlers
• Management of available lights
• controling lights via 3 dimensional coordinate system

Handlers

• ESP8266
  • autoconnect to Wifi (including Access Point for credentials)
  • autodiscovery (registers itself at lighnet server)
  • registers itself at DNS
  • support for WS2812, WS2801 and APA102 LED Strips

TODO

• check whether light count has changed (in comparison with what is saved in the API) after restart
• ping handlers if still available

Topology

• nodes (e.g. esp8266) with installed Handler
• Hub (e.g. raspberry pi zero) with installed Server
• Devices (e.g. android) with installed Client (not yet, use webinterface for now)

Handshake

• Nodes listen for multicast message on 224.0.0.1:3535
• Server multicasts a message containing "lightnet:"
• Nodes answer with a TCP message to :3636 with ";;\r\n"
• Server pushes the changes of the node list to the clients (TODO)
• On User interaction Client sends a POST message to the Server

Tips

use IPTables to NAT map port 80 to port 4060 where the webinterface runs. Like this for example:

sudo iptables -t nat -A PREROUTING -i wlan0 -p tcp --dport 80 -j REDIRECT --to-port 4060

Append this line to your /etc/rc.local if you want this to survive a reboot (without sudo).

API

While running the API offers a very rudimentary interface documentation page under http://<yourserver>:4050/apiDocs/.