LIFX Node.js Library

Warning: This repository currently has no active maintainer. For that reason, development is stale. Consider using an active fork, like lifx-lan-client.

A Node.js implementation of the LIFX protocol. Developed to work with a minimum firmware version of 2.0.

This library is not, in any way, affiliated or related to LiFi Labs, Inc.. Use it at your own risk.

Installation

$ npm install node-lifx --save

Compatibility

Node.js 0.12+ and io.js are tested and supported on Mac, Linux and Windows.

Usage

The file cli.js contains a working example.

Client

The library uses a client for network communication. This client handles communication with all lights in the network.

var LifxClient = require('node-lifx').Client;
var client = new LifxClient();

client.init();

The Client object is an EventEmitter and emmits events whenever any changes occur. This can be a new light discovery, a light sending a message or similar. The client starts discovery of lights right after it is initialized with the init method. If a new light is found the client emmits a light-new event. This event contains the light as an object on which methods can be called then:

var LifxClient = require('node-lifx').Client;
var client = new LifxClient();

client.on('light-new', function(light) {
  // Change light state here
});

client.init();

Changing light state

The states of a light can be changed with different methods:

`light.on([duration], [callback])`

This turns a light on.

Option	Type	Default	Description
`duration`	int	0	Turning on will be faded over the time (in milliseconds).
`callback`	function	null	`function(error) {}` Called after the command has reached the light or after `client.resendMaxTimes` with `client.resendPacketDelay` in case it has not. `error` is `null` in case of success and given if the sending has failed.
Note: Using callback multiplies network load for this command by two or more times.

Usage examples:

light.on(); // Turns the light on instantly
light.on(2000); // Fading the light on over two seconds

`light.off([duration], [callback])`

This turns a light off.

Option	Type	Default	Description
`duration`	int	0	Turning off will be faded over the time (in milliseconds).
`callback`	function	null	`function(error) {}` Called after the command has reached the light or after `client.resendMaxTimes` with `client.resendPacketDelay` in case it has not. `error` is `null` in case of success and given if the sending has failed.
Note: Using callback multiplies network load for this command by two or more times.

Usage examples:

light.off(); // Turns the light off instantly
light.off(2000); // Fading the light off over two seconds

`light.color(hue, saturation, brightness, [kelvin], [duration], [callback])`

Changes the color of a light to an HSB color value. This is the preferred method to change the color of a light.

Option	Type	Default	Description
`hue`	int		Between 0 and 360, representing the color hue in degree which changes the color.
`saturation`	int		Between 0 and 100, representing the color intensity from 0% to 100%.
`brightness`	int		Between 0 and 100, representing the light brightness from 0% to 100%.
`kelvin`	int	3500	Between 2500 and 9000, representing the color temperature.
`duration`	int	0	Fade the color to the new value over time (in milliseconds).
`callback`	function	null	`function(error) {}` Called after the command has reached the light or after `client.resendMaxTimes` with `client.resendPacketDelay` in case it has not. `error` is `null` in case of success and given if the sending has failed.
Note: Using callback multiplies network load for this command by two or more times.

Usage examples:

light.color(0, 100, 50); // Set to red at 50% brightness
light.color(50, 50, 80, 3500, 2000); // Set to a light green at 80% brightness over next two seconds

`light.colorRgbHex(hexString, [duration], [callback])`

Changes the color of a light to an RGB color value given in Hex Format. Note that RGB poorly represents color of light, prefer HSBK values given via the color method.

Option	Type	Default	Description
`hexString`	string		A hex RGB string starting with `#`
`duration`	int	0	Fade the color to the new value over time (in milliseconds).
`callback`	function	null	`function(error) {}` Called after the command has reached the light or after `client.resendMaxTimes` with `client.resendPacketDelay` in case it has not. `error` is `null` in case of success and given if the sending has failed.
Note: Using callback multiplies network load for this command by two or more times.

Usage examples:

light.colorRgbHex('#F00'); // Set to red
light.colorRgbHex('#FFFF00'); // Set to yellow

`light.colorRgb(red, green, blue, [duration], [callback])`

Changes the color of a light to an RGB color value. Note that RGB poorly represents color of light, prefer HSBK values given via the color method.

Option	Type	Default	Description
`red`	int		Amout of red in color from 0 to 255
`green`	int		Amout of green in color from 0 to 255
`blue`	int		Amout of blue in color from 0 to 255
`duration`	int	0	Fade the color to the new value over time (in milliseconds).
`callback`	function	null	`function(error) {}` Called after the command has reached the light or after `client.resendMaxTimes` with `client.resendPacketDelay` in case it has not. `error` is `null` in case of success and given if the sending has failed.
Note: Using callback multiplies network load for this command by two or more times.

Usage examples:

light.colorRgb(255, 0, 0); // Set to red
light.colorRgb(255, 255, 0); // Set to yellow

`light.maxIR(brightness, callback)`

Set's the maximum infrared brightness of the light (only for lights that support infrared light)

Option	Type	Default	Description
`brightness`	int		Between 0 and 100, representing the light brightness from 0% to 100%.
`callback`	function		`function(error, data) {}`

Usage examples:

light.maxIR(0); // Set's a maximum infrared brightness of 0
light.maxIR(25); // Set's a maximum infrared brightness of 25

`light.getMaxIR(callback)`

Requests the maximum infrared brightness of the light (only for lights that support infrared light)

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  brightness: 25
}

Requesting light state and info

Infos of the state and spec of the light can be requested with the following methods:

`light.getState(callback)`

Requests general info from a light, this includes color, label and power state. This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  color: { hue: 120, saturation: 0, brightness: 100, kelvin: 8994 },
  power: 0,
  label: 'Kitchen'
}

`light.getPower(callback)`

Requests current power state (on or off). This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
0 // off

`light.getFirmwareVersion(callback)`

Requests the firmware version from a light (minor and major version). This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  majorVersion: 2,
  minorVersion: 1
}

`light.getHardwareVersion(callback)`

Requests the hardware version from a light (vendor, product and version). This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  vendorId: 1,
  vendorName: 'LIFX',
  productId: 1,
  productName: 'Original 1000',
  version: 6,
  productFeatures: {
    color: true,
    infrared: false,
    multizone: false
  }
}

`light.getFirmwareInfo(callback)`

Requests info from the micro controller unit of a light (signal, tx and rx). This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  signal: 0,
  tx: 0,
  rx: 0
}

`light.getWifiInfo(callback)`

Requests wifi info from a light (signal, tx and rx). This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  signal: 0.000009999999747378752,
  tx: 16584,
  rx: 12580
}

`light.getWifiVersion(callback)`

Requests the wifi firmware version from the light (minor and major version). This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
{
  majorVersion: 2,
  minorVersion: 1
}

`light.getAmbientLight(callback)`

Requests the ambient light value in flux from the light. This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`

Example result:

null,
10

Labels

Labels of lights can be requested and set using the following methods:

`light.getLabel(callback, [cache])`

Requests the label of a light. This function is asynchronous.

Option	Type	Default	Description
`callback`	function		`function(error, data) {}`
`cache`	boolean	false	Use the last known value for the label and and do not request from the light again

Example result:

null,
'Kitchen'

`light.setLabel(label, [callback])`

Sets a new label for a light.

Option	Type	Default	Description
`label`	string		New Label with 32 bit size maximum (which is a length of 32 with non unicode chars).
`callback`	function	null	`function(error) {}` Called after the command has reached the light or after `client.resendMaxTimes` with `client.resendPacketDelay` in case it has not. `error` is `null` in case of success and given if the sending has failed.
Note: Using callback multiplies network load for this command by two or more times.

Usage examples:

light.setLabel('Bedroom Light');
light.setLabel('Kitchen Light 4', function(err) {
  if (err) { throw err; }
  console.log('New light label has been set');
});

Get a light

`client.light(identifier)`

Find a light in the list off all lights by ip, label or id.

Option	Type	Default	Description
`identifier`	string		Light label (case sensitive) `client.light('Kitchen')`, the ip address `client.light('192.168.2.102')` or the light id `client.light('0123456789012')`

Returns a light object that can then be used to call methods on it. For example client.light('192.168.2.102').on().

Get all lights

`client.lights([filter])`

Get a list of all known lights

Option	Type	Default	Description
`filter`	string	null	Filter list of lights to return only active (`null` or `'on'`), inactive (`'off'`) or all (`''`)

Client events

The following events might be thrown by the client.

`light-new`

This event is thrown when there is a new light discovery that has not been seen at runtime before. This event is provided with the new light object. client.on('light-new', function(light) {});

`light-offline`

This event is thrown when a light hasn't been discovered for a time. The light given is no longer expected to be reachable. client.on('light-offline', function(light) {});

`light-online`

This event is thrown when a light is discovered again after being offline. client.on('light-online', function(light) {});

Start / Stop discovery

The discovery for each client can be started and stopped at runtime using these commands:

`client.startDiscovery()`

Starts the discovery process.

`client.stopDiscovery()`

Stops the discovery process.

Client settings

For the initialization of the client different settings can be provided. This is an example with the default options:

var LifxClient = require('node-lifx').Client;
var client = new LifxClient();

// ...

client.init({
  lightOfflineTolerance: 3, // A light is offline if not seen for the given amount of discoveries
  messageHandlerTimeout: 45000, // in ms, if not answer in time an error is provided to get methods
  startDiscovery: true, // start discovery after initialization
  resendPacketDelay: 150, // delay between packages if light did not receive a packet (for setting methods with callback)
  resendMaxTimes: 3, // resend packages x times if light did not receive a packet (for setting methods with callback)
  debug: false, // logs all messages in console if turned on
  address: '0.0.0.0', // the IPv4 address to bind the udp connection to
  broadcast: '255.255.255.255', // set's the IPv4 broadcast address which is addressed to discover bulbs
  lights: [] // Can be used provide a list of known light IPv4 ip addresses if broadcast packets in network are not allowed
             // For example: ['192.168.0.112', '192.168.0.114'], this will then be addressed directly
});

Name		Name	Last commit message	Last commit date
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example		example
lib		lib
test		test
.editorconfig		.editorconfig
.eslintrc		.eslintrc
.gitattributes		.gitattributes
.gitignore		.gitignore
.travis.yml		.travis.yml
LICENSE		LICENSE
README.md		README.md
appveyor.yml		appveyor.yml
babelhook.js		babelhook.js
cli.js		cli.js
package.json		package.json

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MariusRumpf/node-lifx

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LIFX Node.js Library

Installation

Compatibility

Usage

Client

Changing light state

light.on([duration], [callback])

light.off([duration], [callback])

light.color(hue, saturation, brightness, [kelvin], [duration], [callback])

light.colorRgbHex(hexString, [duration], [callback])

light.colorRgb(red, green, blue, [duration], [callback])

light.maxIR(brightness, callback)

light.getMaxIR(callback)

Requesting light state and info

light.getState(callback)

light.getPower(callback)

light.getFirmwareVersion(callback)

light.getHardwareVersion(callback)

light.getFirmwareInfo(callback)

light.getWifiInfo(callback)

light.getWifiVersion(callback)

light.getAmbientLight(callback)

Labels

light.getLabel(callback, [cache])

light.setLabel(label, [callback])

Get a light

client.light(identifier)

Get all lights

client.lights([filter])

Client events

light-new

light-offline

light-online

Start / Stop discovery

client.startDiscovery()

client.stopDiscovery()

Client settings

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`light.on([duration], [callback])`

`light.off([duration], [callback])`

`light.color(hue, saturation, brightness, [kelvin], [duration], [callback])`

`light.colorRgbHex(hexString, [duration], [callback])`

`light.colorRgb(red, green, blue, [duration], [callback])`

`light.maxIR(brightness, callback)`

`light.getMaxIR(callback)`

`light.getState(callback)`

`light.getPower(callback)`

`light.getFirmwareVersion(callback)`

`light.getHardwareVersion(callback)`

`light.getFirmwareInfo(callback)`

`light.getWifiInfo(callback)`

`light.getWifiVersion(callback)`

`light.getAmbientLight(callback)`

`light.getLabel(callback, [cache])`

`light.setLabel(label, [callback])`

`client.light(identifier)`

`client.lights([filter])`

`light-new`

`light-offline`

`light-online`

`client.startDiscovery()`

`client.stopDiscovery()`

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