node-lifx-lan

The node-lifx-lan is a Node.js module which allows you to communicate with the Wi-Fi LED smart light products "LIFX" using the LAN protocol.

Dependencies

Node.js 12 +
- Though the node-lifx-lan may work on older version of Node for now, it is strongly recommended to use Node 12 or newer. The node-lifx-lan will not support old versions of Node in the future.

Installation

$ cd ~
$ npm install node-lifx-lan

Quick Start

Turn on all bulbs simultaneously

The code below turns on all LIFX bulbs in the local network.

// Create a LifxLan object
const Lifx  = require('node-lifx-lan');

// Turn on all LIFX bulbs in the local network
Lifx.turnOnBroadcast({
  color: {css: 'green'}
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Turn on bulbs satisfying a filter

The code blow turns on LIFX bulbs whose group is Room 1 in blue.

// Create a LifxLan object
const Lifx  = require('node-lifx-lan');

// Discover LIFX bulbs in the local network
Lifx.discover().then(() => {
  // Turn on LIFX bulbs whose group is `Room 1` in blue
  return Lifx.turnOnFilter({
    filters: [{
      group: {label: 'Room 1',}
    }],
    color: {css: 'blue'}
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Turn on a bulbs

The code below turns on a LIFX bulb found first in yellow.

// Create a LifxLan object
const Lifx  = require('node-lifx-lan');

// Discover LIFX bulbs in the local network
Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  if(!dev) {
    throw new Error('No bulb was found.');
  }
  // Turn on a LIFX bulb found first in yellow
  return dev.turnOn({
    color: {css: 'yellow'}
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

`LifxLan` object

In order to use the node-lifx-lan, you have to load the node-lifx-lan module as follows:

const Lifx  = require('node-lifx-lan');

In the code snippet above, the variable Lifx is a LifxLan object. The LifxLan object has methods as described in the sections below.

`discover([params])` method

The discover() method starts to scan LIFX bulbs in the local network. This method returns a Promise object. The discovery process completes successfully, a list of LifxLanDevice object will be passed to the resolve() function. The LifxLanDevice object represents a LIFX bulb.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`wait`	Integer	Optional	Wait time of the discovery process. The unit is millisecond. The default value is `3000`.

Basically you don't need to pass the wait property to this method. In most cases, the default value 3000 works well.

Lifx.discover().then((device_list) => {
  device_list.forEach((device) => {
    console.log([
      device['ip'],
      device['mac'],
      device['deviceInfo']['label']
    ].join(' | '));
  });
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

192.168.10.5 | D0:73:D5:13:96:7E | LIFX Bulb 13967e
192.168.10.2 | D0:73:D5:25:A7:28 | LIFX A19 25A728
192.168.10.4 | D0:73:D5:25:36:B0 | LIFX Pls A19 2536B0

turnOnBroadcast([params]) method

The turnOnBroadcast() method turns on all LIFX bulbs in the local network. This method sends a broadcast packet. Therefore, it turns on all bulbs pretty much simultaneously.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`color`	`LifxLanColor`	Optional	a `LifxLanColor` object representing a color
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below turns on all LIFX bulb.

Lifx.turnOnBroadcast().then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

The code below turns on all LIFX bulbs in red with 3 seconds color transition.

Lifx.turnOnBroadcast({
  color: {css: 'red'},
  duration: 3000
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Note that this method just sends a broadcast packet, it is agnostic on the results. If you need to turn on lights in a more reliable way, it is recommended to use the turnOnFilter() method.

setColorBroadcast(params) method

The setColorBroadcast() method changes color setting on all LIFX bulbs in the local network. This method sends a broadcast packet. Therefore, it changes the color setting on all bulbs pretty much simultaneously.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`color`	`LifxLanColor`	Required	a `LifxLanColor` object representing a color
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below changes the color of all LIFX bulbs to blue.

Lifx.setColorBroadcast({
  color: {css: 'blue'}
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Note that this method just sends a broadcast packet, it is agnostic on the results. If you need to change the color setting in a more reliable way, it is recommended to use the setColorFilter() method.

turnOffBroadcast([params]) method

The turnOffBroadcast() method turns off all LIFX bulbs in the local network. This method sends a broadcast packet. Therefore, it turns off all bulbs pretty much simultaneously.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below turns off all LIFX bulbs with 3 seconds color transition.

Lifx.turnOffBroadcast({
  duration: 3000
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Note that this method just sends a broadcast packet, it is agnostic on the results. If you need to turn off lights in a more reliable way, it is recommended to use the turnOffFilter() method.

turnOnFilter([params]) method

The turnOnFilter() method turns on the LIFX bulbs satisfying the filters specified to this method.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`filters`	Array	Optional	A list of `LifxLanFilter` object
`color`	`LifxLanColor`	Optional	A `LifxLanColor` object representing a color
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

Be sure to call this method after calling the discover() method. Otherwise, no LIFX bulbs satisfying the filter will be found. That is, this method will result in error.

The code below turns on LIFX bulbs whose group is set to Room 1.

Lifx.discover().then(() => {
  return Lifx.turnOnFilter({
    filters: [{
      group: {label: 'Room 1'},
    }]
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

The LifxLanFilter object supports some types of filter. See the section "LifxLanFilter object" for more details.

If the LifxLanFilter object is not passed to this method, all LIFX bulbs recognized by the discover() method will be turned on.

Lifx.discover().then(() => {
  return Lifx.turnOnFilter();
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Though the outcome of the code above is as same as the turnOnBroadcast() method (all LIFX bulbs in the local network will be turned on), the prosess is completely different.

While the turnOnBroadcast() method just sends a broadcast packet, the turnOnFilter() method sends a packet to each devices one by one and checks responses. Though this method takes more time than the turnOnBroadcast() method, it turns on all bulbs in a more reliable way. That is, this method can let you know if an error was occurred.

setColorFilter(params) method

The setColorFilter() method changes the color of the LIFX bulbs satisfying the filters specified to this method.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`filters`	Array	Optional	A list of `LifxLanFilter` object
`color`	`LifxLanColor`	Required	a `LifxLanColor` object representing a color
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below changes the color of the LIFX bulbs whose label is set to LIFX Pls A19 2536B0.

Lifx.discover().then((device_list) => {
  return Lifx.setColorFilter({
    filters: [{
      label: 'LIFX Pls A19 2536B0'
    }],
    color: {css: 'green'}
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

The LifxLanFilter object supports some types of filter. See the section "LifxLanFilter object" for more details.

If the LifxLanFilter object is not passed to this method, the color settings of all LIFX bulbs recognized by the discover() method will be changed.

Lifx.discover().then((device_list) => {
  return Lifx.setColorFilter({
    color: {css: 'green'}
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Though the outcome of the code above is as same as the setColorBroadcast() method (The color settings of all LIFX bulbs in the local network will be changed), the process is completely different.

While the setColorBroadcast() method just sends a broadcast packet, the setColorFilter() method sends a packet to each devices one by one and checks responses. Though this method takes more time than the setColorBroadcast() method, it changes the color settings on all bulbs in a more reliable way. That is, this method can let you know if an error was occurred.

turnOffFilter([params]) method

The turnOffFilter() method turns off the LIFX bulbs satisfying the filters specified to this method.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`filters`	Array	Optional	A list of `LifxLanFilter` object
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

Be sure to call this method after calling the discover() method. Otherwise, no LIFX bulbs satisfying the filter will be found. That is, this method will result in error.

The code below turns off LIFX bulbs whose group label is set to Room 1.

Lifx.discover().then(() => {
  return Lifx.turnOffFilter({
    filters: [{
      group: {label: 'Room 1'},
    }]
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

The LifxLanFilter object supports some types of filter. See the section "LifxLanFilter object" for more details.

If the LifxLanFilter object is not passed to this method, all LIFX bulbs recognized by the discover() method will be turned off.

Lifx.discover().then(() => {
  return Lifx.turnOffFilter();
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Though the outcome of the code above is as same as the turnOffBroadcast() method (all LIFX bulbs in the local network will be turned off), the prosess is completely different.

While the turnOffBroadcast() method just sends a broadcast packet, the turnOffFilter() method sends a packet to each devices one by one and checks responses. Though this method takes more time than the turnOffBroadcast() method, it turns off all bulbs in a more reliable way. That is, this method can let you know if an error was occurred.

destroy() method

The destroy() method closes the UDP socket, then disables the LifxLan object.

Once the node-lifx-lan module is loaded, the script can not finish automatically because UDP socket keeps to be open. Calling this method, the script can finish as expected.

Lifx.destroy().then(() => {
  console.log('Bye!');
}).catch((error) => {
  console.error();
});

createDevice(params) method

The createDevice() method creates a LifxLanDevice object.

The LifxLanDevice object can be obtained using the discover() method as well. However, if you have already known the IPv4 address and the MAC address of the device, this method allows you to obtain the LifxLanDevice object without the discovery process.

This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`ip`	String	Required	IPv4 address. (e.g., `"192.168.10.4"`)
`mac`	String	Required	MAC address. (e.g., `"D0:73:D5:25:36:B0"`)

The code below creates a LifxLanDevice object and turns on the LIFX bulb:

Lifx.createDevice({
  mac: 'D0:73:D5:25:36:B0',
  ip: '192.168.11.32'
}).then((dev) => {
  return dev.turnOn({
    color: { css: 'red' }
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

Note that the deviceInfo property in a LifxLanDevice object created by this method is set to null by default. If you want to get the device information, call the getDeviceInfo() method by yourself.

`LifxLanColor` object

The LifxLanColor object represents a color, which is just a hash object. It supports 4 expressions: HSB, RGB, xy/brightness, and CSS.

`LifxLanColorHSB` object

Property	Type	Required	Description
`hue`	Float	Conditional	Hue in the range of 0.0 to 1.0.
`saturation`	Float	Conditional	Saturation in the range of 0.0 to 1.0.
`brightness`	Float	Conditional	Brightness in the range of 0.0 to 1.0.
`kelvin`	Integer	Optional	Color temperature (°) in the range of 1500 to 9000.

When the LifxLanColorHSB object is used for the LifxLan.turnOnBroadcast(), LifxLan.turnOffBroadcast(), and LifxLan.setColorBroadcast(), the hue, saturation, and brightness properties are required. If the kelvin property is not specified, it is set to 3500.

When the LifxLanColorHSB object is used for the lightSetColor(), the hue, saturation, brightness, and kelvin properties are required.

When the LifxLanColorHSB object is used for other methods, all properties are optional.

`LifxLanColorRGB` object

Property	Type	Required	Description
`red`	Float	Conditional	Red component in the range of 0.0 to 1.0.
`green`	Float	Conditional	Green component in the range of 0.0 to 1.0.
`blue`	Float	Conditional	Blue component in the range of 0.0 to 1.0.
`brightness`	Float	Optional	Brightness in the range of 0.0 to 1.0.
`kelvin`	Integer	Optional	Color temperature (°) in the range of 1500 to 9000.

When the LifxLanColorRGB object is used for the LifxLan.turnOnBroadcast(), LifxLan.setColorBroadcast(), LifxLanDevice.turnOn(), and LifxLanDevice.setColor(), the red, green, and blue properties are required. If the kelvin property is not specified, it is set to 3500.

When the LifxLanColorRGB object is used for other methods, all properties are optional.

The specified RGB is converted to HSB internally. If the brightness is specified, The B component in the HSB is replaced by the value of the brightness.

`LifxLanColorXyb` object

Property	Type	Required	Description
`x`	Float	Conditional	X value in the range of 0.0 to 1.0.
`y`	Float	Conditional	Y value in the range of 0.0 to 1.0.
`brightness`	Float	Conditional	Brightness in the range of 0.0 to 1.0.
`kelvin`	Integer	Optional	Color temperature (°) in the range of 1500 to 9000.

When the LifxLanColorXyb object is used for the LifxLan.turnOnBroadcast(), LifxLan.turnOffBroadcast(), and LifxLan.setColorBroadcast(), the x, y, and brightness properties are required. If the kelvin property is not specified, it is set to 3500.

When the LifxLanColorXyb object is used for other methods, all properties are optional.

`LifxLanColorCSS` object

Property	Type	Required	Description
`css`	String	Conditional	CSS color (`"red"`, `"#ff0000"`, or `"rgb(255, 0, 0)"`)
`brightness`	Float	Optional	Brightness in the range of 0.0 to 1.0.
`kelvin`	Integer	Optional	Color temperature (°) in the range of 1500 to 9000.

The css property supports all of the named colors specified in the W3C CSS Color Module Level 4, such as "red", "blue", "blueviolet", etc.

In addition to the named colors, the css property supports CSS Hexadecimal color (e.g., "#ff0000") and RGB color (e.g., "rgb(255, 0, 0)"). Note that the css property does not support CSS RGBA color (e.g., "rgba(255, 0, 0, 1.0)") and HSL color (e.g., "hsl(0, 100%, 100%)") and HSLA color (e.g., "hsl(0, 100%, 100%, 1.0)").

When the LifxLanColorCSS object is used for the LifxLan.turnOnBroadcast(), LifxLan.setColorBroadcast(), LifxLanDevice.turnOn(), and LifxLanDevice.setColor(), the css property is required. If the kelvin property is not specified, it is set to 3500.

When the LifxLanColorCSS object is used for other methods, the css property is optional.

The specified CSS is converted to RGB, finally to HSB internally. If the brightness is specified, The B component in the HSB is replaced by the value of the brightness.

`LifxLanFilter` object

The LifxLanFilter object represents a filter, which is just a hash object. It is used for the LifxLan.turnOnFilter(), LifxLan.turnOffFilter(), and LifxLan.setColorFilter() methods.

Property	Type	Required	Description
`label`	String	Optional	Label of bulb
`productId`	Integer	Optional	Product ID
`features`	Object	Optional
+`color`	Boolean	Optional	If the bulb has color capability, the value is `true`. Otherwise, `false`.
+`infrared`	Boolean	Optional	If the bulb has infrared capability, the value is `true`. Otherwise, `false`.
+`multizone`	Boolean	Optional	If the bulb has multizone capability, the value is `true`. Otherwise, `false`.
+`chain`	Boolean	Optional	If the bulb has chain capability, the value is `true`. Otherwise, `false`.
`group`	Object	Optional
+`guid`	String	Optional	GUID of group
+`label`	String	Optional	Label of group
`location`	Object	Optional
+`guid`	String	Optional	GUID of location
+`label`	String	Optional	Label of location

As you can see the table above, all of the properties are optional. No LifxLanFilter means no filter. That is, all bulbs are targeted.

{
  productId: 29
}

The filter above limits to bulbs whose product ID is 29 (LIFX + A19).

You can specify multiple properties:

{
  features: {infrared: true},
  group   : {label: 'Room 1'}
}

The filter above limits to bulbs which have infrared capability AND whose group label is equivalent to Room 1. Note that multiple properties means AND condition.

The methods supporting filter takes filters as a list of the LifxLanFilter object.

Lifx.turnOnFilter({
  filters: [
    {group: {label: 'Room 1'}},
    {group: {label: 'Room 2'}}
  ]
});

Multiple LifxLanFilter objects means OR condition. The code above turns on the LIFX bulbs whose group label equivalent to Room 1 OR Room 2.

`LifxLanDevice` object

The LifxLanDevice object represents a LIFX bulb, which is created through the discovery process triggered by the LifxLan.discover() method. This section describes the properties and methods implemented in this object.

Properties

The LifxLanDevice object supports the properties as follows:

Property	Type	Description
`ip`	String	IP address. (e.g., `"192.168.10.4"`)
`mac`	String	MAC address. (e.g., `"D0:73:D5:25:36:B0"`)
`deviceInfo`	Object
+`label`	String	Label of the bulb.
+`vendorId`	Integer	Vendor ID. The value is always `1`.
+`productId`	Integer	Product ID. The value depends on the product.
+`productName`	String	Product name. The value depends on the product.
+`hwVersion`	Integer	Hardware version number.
+`features`	Object
++`color`	Boolean	The bulb has color capability, the value is `true`. Otherwise, `false`.
++`infrared`	Boolean	The bulb has infrared capability, the value is `true`. Otherwise, `false`.
++`multizone`	Boolean	The bulb has multizone capability, the value is `true`. Otherwise, `false`.
++`chain`	Boolean	The bulb has chain capability, the value is `true`. Otherwise, `false`.
+`location`	Object
++`guid`	String	GUID of location.
++`label`	String	Label of location.
++`updated`	`Date`	A JavaScript `Date` object representing the date and time when the location was updated.
+`group`	Object
++`guid`	String	GUID of group.
++`label`	String	Label of group.
++`updated`	`Date`	A JavaScript `Date` object representing the date and time when the group was updated.
+`multizone`	Object	If the bulb does not have multizone capability, the value is `null`.
++`count`	Integer	Number of zone.
+`chain`	Object	If the bulb does not have chain capability, the value is `null`.
++`start_index`	Integer	Starting tile index.
++`total_count`	Integer	Total number of tiles from `start_index`.
++`tile_devices`	Array	A list of Tile objects.

The code below discovers LIFX bulbs, then shows the structure of the deviceInfo of one of the found bulbs:

Lifx.discover().then((device_list) => {
  let device = device_list[0];
  console.log(JSON.stringify(device.deviceInfo, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output as follows:

{
  "label": "LIFX Bulb 14b048",
  "vendorId": 1,
  "vendorName": "LIFX",
  "productId": 31,
  "productName": "LIFX Z",
  "hwVersion": 0,
  "features": {
    "color": true,
    "infrared": false,
    "multizone": true
  },
  "location": {
    "guid": "1ec285bd7b3bf739107d668f58f3668b",
    "label": "My Home",
    "updated": "2017-10-14T13:48:24.918Z"
  },
  "group": {
    "guid": "b4cfbfe12a8527cef9c95f159f67dfe6",
    "label": "Room 1",
    "updated": "2017-10-14T13:48:24.979Z"
  },
  "multizone": {
    "count": 16
  },
  "chain": null
}

turnOn([params]) method

The turnOn() method turns on the LIFX bulb. This method returns a Promise object. This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`color`	`LifxLanColor`	Optional	A `LifxLanColor` object representing a color
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below turns on the LIFX bulb in green with 3 seconds color transition:

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.turnOn({
    color: {css: 'green'},
    duration: 3000
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

setColor(params) method

The setColor() method changes the color setting of the LIFX bulb. This method returns a Promise object. This method takes a hash object containing the properties as follows:

Property	Type	Requred	Description
`color`	`LifxLanColor`	Optional	A `LifxLanColor` object representing a color
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below changes the color setting of the LIFX bulb to blue with 3 seconds color transition:

Lifx.discover({wait:3000}).then((device_list) => {
  let dev = device_list[0];
  return dev.setColor({
    color: {
      hue: 0.5,
      saturation: 1.0,
      brightness: 0.3
    },
    duration: 3000
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

turnOff([params]) method

The turnOff() method turns off the LIFX bulb. This method returns a Promise object. This method takes a hash object containing the properties as follows:

Property	Type	Required	Description
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

The code below turns off the LIFX bulb with 3 seconds color transition:

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.turnOff({
    duration: 3000
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

getDeviceInfo() method

The getDeviceInfo() method fetches the device information from the LIFX bulb. This method returns a Promise object.

If the information is fetched successfully, a hash object containing the information will be passed to the resolve() function. The hash object has the properties as follows:

Property	Type	Description
`label`	String	Label of the bulb.
`vendorId`	Integer	Vendor ID. The value is always `1`.
`productId`	Integer	Product ID. The value depends on the product.
`productName`	String	Product name. The value depends on the product.
`hwVersion`	Integer	Hardware version number.
`features`	Object
+`color`	Boolean	The bulb has color capability, the value is `true`. Otherwise, `false`.
+`infrared`	Boolean	The bulb has infrared capability, the value is `true`. Otherwise, `false`.
+`multizone`	Boolean	The bulb has multizone capability, the value is `true`. Otherwise, `false`.
`location`	Object
+`guid`	String	GUID of location.
+`label`	String	Label of location.
+`updated`	`Date`	A JavaScript `Date` object representing the date and time when the location was updated.
`group`	Object
+`guid`	String	GUID of group.
+`label`	String	Label of group.
+`updated`	`Date`	A JavaScript `Date` object representing the date and time when the group was updated.
`multizone`	Object	If the bulb does not have multizone capability, the value is `null`.
+`count`	Integer	Number of zone.
`chain`	Object	If the bulb does not have chain capability, the value is `null`.
+`start_index`	Integer	Starting tile index.
+`total_count`	Integer	Total number of tiles from `start_index`.
+`tile_devices`	Array	A list of Tile objects.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.getDeviceInfo();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "label": "LIFX Bulb 14b048",
  "vendorId": 1,
  "vendorName": "LIFX",
  "productId": 31,
  "productName": "LIFX Z",
  "hwVersion": 0,
  "features": {
    "color": true,
    "infrared": false,
    "multizone": true,
    "chain": false
  },
  "location": {
    "guid": "1ec285bd7b3bf739107d668f58f3668b",
    "label": "My Home",
    "updated": "2017-10-14T13:48:24.918Z"
  },
  "group": {
    "guid": "b4cfbfe12a8527cef9c95f159f67dfe6",
    "label": "Room 1",
    "updated": "2017-10-14T13:48:24.979Z"
  },
  "multizone": {
    "count": 16
  },
  "chain": null
}

getLightState() method

The getLightState() method fetches the current state of the LIFX bulb. This method returns a Promise object.

If the information is fetched successfully, a hash object containing the information will be passed to the resolve() function. The hash object has the properties as follows:

Property	Type	Description
`color`	Object
+`hue`	Float	Hue in the range of 0.0 to 1.0.
+`saturation`	Float	Saturation in the range of 0.0 to 1.0.
+`brightness`	Float	Brightness in the range of 0.0 to 1.0.
+`kelvin`	Integer	Color temperature (°) in the range of 1500 to 9000.
`power`	Integer	If the bulb is turned on, the value is `true`. Otherwise, the value is `false`.
`label`	String	The label of the bulb.
`infrared`	Object	If the bulb does not have infrared capability, the value is `null`.
+`brightness`	Float	Infrared brightness in the range of 0.0 to 1.0.
`multizone`	Object	If the bulb does not have multizone capability, the value is `null`.
+`count`	Integer	Number of zone.
+`colors`	Array
++`hue`	Float	Hue in the range of 0.0 to 1.0.
++`saturation`	Float	Saturation in the range of 0.0 to 1.0.
++`brightness`	Float	Brightness in the range of 0.0 to 1.0.
++`kelvin`	Integer	Color temperature (°) in the range of 1500 to 9000.
`chain`	Object	If the bulb does not have chain capability, the value is `null`.
+`count`	Integer	Number of chained devices.
+`colors`	Array[Array]	Array of device color arrays.
+++`hue`	Float	Hue in the range of 0.0 to 1.0.
+++`saturation`	Float	Saturation in the range of 0.0 to 1.0.
+++`brightness`	Float	Brightness in the range of 0.0 to 1.0.
+++`kelvin`	Integer	Color temperature (°) in the range of 1500 to 9000.

The code below shows the state of the LIFX bulb:

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.getLightState();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "color": {
    "hue": 0,
    "saturation": 1,
    "brightness": 1,
    "kelvin": 3500
  },
  "power": 1,
  "label": "LIFX bulb 14b048",
  "infrared": null,
  "multizone": {
    "count": 16,
    "colors": [
      {
        "hue": 0,
        "saturation": 1,
        "brightness": 1,
        "kelvin": 3500
      },
      {
        "hue": 0,
        "saturation": 1,
        "brightness": 1,
        "kelvin": 3500
      },
      ...
    ]
  }
}

Low level methods in the `LifxLanDevice` object

Other than the methods described above, the LifxLanDevice has low-level methods. The low-level methods based on the command packets specified in the LIFX Lan Protocol. Each command is assigned to a method. Actually, the high-level methods described above are just a combination of some low-level methods. Using the low-level methods, you can develop more sophisticated actions.

deviceGetService() method

The deviceGetService() method fetches the service information exposed by the bulb [GetService - 2]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateService - 3]:

Property	Type	Description
`service`	Integer	The value is always `1` which means UDP.
`port`	Integer	UDP port number.

Actually, the result of this method is useless. This command is usually used for the discovery process.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetService();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "service": 1,
  "port": 56700
}

deviceGetHostInfo() method

The deviceGetHostInfo() method fetches the host MCU information exposed by the bulb [GetHostInfo - 12]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateHostInfo - 13]:

Property	Type	Description
`signal`	Integer	Radio receive signal strength in milliWatts.
`tx`	Integer	Bytes transmitted since power on.
`rx`	Integer	Bytes received since power on.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetHostInfo();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

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

deviceGetHostFirmware() method

The deviceGetHostFirmware() method fetches the host MCU firmware information exposed by the bulb [GetHostFirmware - 14]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateHostFirmware - 15]:

Property	Type	Description
`build`	`Date`	Firmware build time
`version`	Integer	Firmware version.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetHostFirmware();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "build": "2017-08-09T00:12:50.000Z",
  "version": 65558
}

deviceGetWifiInfo() method

The deviceGetWifiInfo() method fetches the Wifi subsystem information exposed by the bulb [GetWifiInfo - 16]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateWifiInfo - 17]:

Property	Type	Description
`signal`	Integer	Radio receive signal strength in milliWatts.
`tx`	Integer	Bytes transmitted since power on.
`rx`	Integer	Bytes received since power on.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetWifiInfo();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "signal": 46,
  "tx": 2158016404,
  "rx": 2158016404
}

deviceGetWifiFirmware() method

The deviceGetWifiFirmware() method fetches the Wifi subsystem information exposed by the bulb [GetWifiFirmware - 18]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateWifiFirmware - 19]:

Property	Type	Description
`build`	`Date`	Firmware build time
`version`	Integer	Firmware version.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetWifiFirmware();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "build": "1970-01-01T00:00:00.000Z",
  "version": 0
}

deviceGetPower() method

The deviceGetPower() method fetches the power status exposed by the bulb [GetPower - 20]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StatePower - 22]:

Property	Type	Description
`level`	Integer	If the bulb is powered on, the value is `1`. Otherwise, the value is `0`.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetPower();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "level": 1
}

deviceSetPower(params) method

The deviceSetPower() method set the device power level [SetPower - 21]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`level`	Integer	Required	`0` (off) or `1` (on).

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceSetPower({
    level: 1
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

deviceGetLabel() method

The deviceGetLabel() method fetches the device label exposed by the bulb [GetLabel - 23]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateLabel - 25]:

Property	Type	Description
`label`	String	Device label.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetLabel();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "label": "LIFX Pls A19 2536B0"
}

deviceSetLabel(params) method

The deviceSetLabel() method set the device label text [SetLabel - 24]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`label`	String	Required	Device label text (up to 32 bytes in UTF-8 encoding).

Lifx.discover().then((device_list) => {
  dev = device_list[0];
  return dev.deviceSetLabel({
    label: 'My desk light'
  });
}).then((res) => {
  console.log('done!');
}).catch((error) => {
  console.error(error);
});

deviceGetVersion() method

The deviceGetVersion() method fetches the device label exposed by the bulb [GetVersion - 32]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateVersion - 33]:

Property	Type	Description
`vendorId`	Integer	Vendor ID.
`vendorName`	String	Vendor name.
`productId`	Integer	Product ID.
`productName`	String	Product name.
`hwVersion`	Integer	Hardware version.
`features`	Object
+`color`	Boolean	If the bulb has color capability, the value is `true`. Otherwise, the value is `false`.
+`infrared`	Boolean	If the bulb has infrared capability, the value is `true`. Otherwise, the value is `false`.
+`multizone`	Boolean	If the bulb has multizone capability, the value is `true`. Otherwise, the value is `false`.
+`chain`	Boolean	If the bulb has chain capability, the value is `true`. Otherwise, the value is `false`.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetVersion();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "vendorId": 1,
  "vendorName": "LIFX",
  "productId": 29,
  "productName": "LIFX+ A19",
  "hwVersion": 0,
  "features": {
    "color": true,
    "infrared": true,
    "multizone": false,
    "chain": false
  }
}

deviceGetInfo() method

The deviceGetInfo() method fetches the run-time information exposed by the bulb [GetInfo - 34]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateInfo - 35]:

Property	Type	Description
`time`	`Date`	Cueent time.
`uptime`	Integer	Time since last power on (relative time in millisecond)
`downtime`	Integer	Last power off period, 5 second accuracy (in millisecond)

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetInfo();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "time": "2017-10-21T01:55:21.090Z",
  "uptime": 38843404,
  "downtime": 0
}

deviceGetLocation() method

The deviceGetLocation() method fetches the location information exposed by the bulb [GetLocation - 48]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateLocation - 50]:

Property	Type	Description
`guid`	String	GUID of location.
`label`	String	Label of location.
`updated`	`Date`	UTC timestamp of last label update.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetLocation();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "guid": "1ec285bd7b3bf739107d668f58f3668b",
  "label": "My Home",
  "updated": "2017-10-14T13:48:24.918Z"
}

deviceSetLocation(params) method

The deviceSetLocation() method set the device location [SetLocation - 49]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`location`	String	Optional	GUID of location (16 bytes hex representation). If this property is not specified, this method generates a rondom GUID.
`label`	String	Required	Text label for location (up to 32 bytes in UTF-8 encoding)
`updated`	`Date`	Optional	UTC timestamp of last label update. If this property is not specified, this method set this value to the current time.

Lifx.discover().then((device_list) => {
  dev = device_list[0];
  return dev.deviceSetLocation({
    label: 'My Studio',
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

deviceGetGroup() method

The deviceGetGroup() method fetches the location information exposed by the bulb [GetGroup - 51]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateGroup - 53]:

Property	Type	Description
`guid`	String	GUID of group.
`label`	String	Label of group.
`updated`	`Date`	UTC timestamp of last group update.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceGetGroup();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "guid": "b4cfbfe12a8527cef9c95f159f67dfe6",
  "label": "Room 1",
  "updated": "2017-10-14T13:48:24.979Z"
}

deviceSetGroup(params) method

The deviceSetGroup() method set the device group [SetGroup - 52]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`group`	String	Optional	GUID of group (16 bytes hex representation). If this property is not specified, this method generates a rondom GUID.
`label`	String	Required	Text label for group (up to 32 bytes in UTF-8 encoding)
`updated`	`Date`	Optional	UTC timestamp of last label update. If this property is not specified, this method set this value to the current time.

Lifx.discover().then((device_list) => {
  dev = device_list[0];
  return dev.deviceSetGroup({
    label: 'My Desk'
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

deviceEchoRequest() method

The deviceEchoRequest() method requests a text echo-back to the bulb [EchoRequest - 58]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`text`	String	Required	An arbitrary string (up to 64 bytes in UTF-8 encoding)

Note that this method accepts only text though the LIFX LAN protocol specification says that you can send binary data,

If this method send a request successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [EchoResponse - 59]:

Property	Type	Description
`text`	String	The text echoed back by the bulb.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.deviceEchoRequest({
    text: 'Bonjour, ça va bien ?'
  });
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "text": "Bonjour, ça va bien ?"
}

lightGet() method

The lightGet() method fetches the light state exposed by the bulb [Get - 101]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [State - 107]:

Property	Type	Description
`color`	`LifxLanColorHSB`	HSB color information.
`power`	Integer	`0` (off) or `1` (on)
`label`	String	Text label of the bulb.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.lightGet();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "color": {
    "hue": 0.66407,
    "saturation": 1,
    "brightness": 1,
    "kelvin": 3500
  },
  "power": 1,
  "label": "LIFX A19 25A728"
}

lightSetColor() method

The lightSetColor() method changes the light state [SetColor - 102]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`color`	`LifxLanColorHSB`	Required	HSB color information.
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.

Note that hue, saturation, brightness, and kelvin properties in the LifxLanColorHSB are all required in this method.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.lightSetColor({
    color   : {
      hue        : 0.16,
      saturation : 1.0,
      brightness : 1.0,
      kelvin     : 5000
    },
    duration: 1.0
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

lightSetWaveform() method

The lightSetWaveform() method apples an waveform effect to the bulb [SetWaveform - 103]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`transient`	Integer	Required	`0` or `1`. If the value is `0`, the color will stay as the new color after the effect is performed. If the value is `1`, the color will return to the original color after the effect.
`color`	`LifxLanColorHSB`	Required	HSB color information.
`period`	Integer	Required	Duration of a cycle in milliseconds.
`cycles`	Float	Required	Number of cycles.
`skew_ratio`	Float	Conditional	`0.0` - `1.0`. Required only when the `waveform` is `4` (PULSE).
`waveform`	Integer	Required	`0`: SAW, `1`: SINE, `2`: HALF_SINE, `3`: TRIANGLE, `4`: PULSE.

Note that hue, saturation, brightness, and kelvin properties in the LifxLanColorHSB are all required in this method.

See the LIFX official page for more information on waveforms.

Lifx.discover({wait:3000}).then((device_list) => {
  dev = device_list[0];
  // Set the color to yellow
  return dev.lightSetColor({
    color   : {
      hue        : 0.16,
      saturation : 1.0,
      brightness : 1.0,
      kelvin     : 3500
    },
    duration: 0.0
  });
}).then(() => {
  // Set the waveform effect
  return dev.lightSetWaveform({
    transient  : 1,
    color      : { // Red
      hue        : 1.0,
      saturation : 1.0,
      brightness : 1.0,
      kelvin     : 3500
    },
    period     : 10000,
    cycles     : 10,
    waveform   : 1 // SINE
  });
}).then(() => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

lightGetPower() method

The lightGetPower() method fetches the power level exposed by the bulb [GetPower - 116]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StatePower - 118]:

Property	Type	Description
`level`	Integer	`0` (off) or `1` (on)

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.lightGetPower();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "level": 1
}

lightSetPower(params) method

The lightSetPower() method changes the power level [SetPower - 117]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`level`	Integer	Required	`0` (off) or `1` (on)
`duration`	Integer	Optional	Power level transition time in milliseconds. The default value is `0`.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.lightSetPower({
    level: 1,
    duration: 3000
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

lightGetInfrared() method

The lightGetInfrared() method fetches the current maximum power level of the Infrared channel exposed by the bulb [GetInfrared - 120]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateInfrared - 121]:

Property	Type	Description
`brightness`	Float	Brightness for the infrared channel (0.0 - 1.0).

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.lightGetInfrared();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "brightness": 1
}

lightSetInfrared(params) method

The lightSetInfrared() method alters the current maximum brightness for the infrared channel [SetInfrared - 122]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`brightness`	Float	Brightness for the infrared channel (0.0 - 1.0).

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.lightSetInfrared({
    brightness: 1.0
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

multiZoneSetColorZones(params) method

The multiZoneSetColorZones() method changes the color of either a single or multiple zones [SetColorZones - 501]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`start`	Integer	Required	Start index of zone (0 - 127).
`end`	Integer	Required	End index of zone (0 - 127).
`color`	`LifxLanColor`	Required	Color of the zone(s)
`duration`	Integer	Optional	Color transition time in milliseconds. The default value is `0`.
`apply`	Integer	Optional	`0`: NO_APPLY, `1`: APPLY (default), `2`: APPLY_ONLY

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.multiZoneSetColorZones({
    start    : 0,
    end      : 7,
    color    : {
      hue        : 0.35,
      saturation : 1.0,
      brightness : 1.0,
      kelvin     : 3500
    },
    duration : 0,
    apply    : 1
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

multiZoneGetColorZones(params) method

The multiZoneGetColorZones() method fetches the zone colors for a range of zones exposed by the bulb [GetColorZones - 502]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`start`	Integer	Required	Start index of zone (0 - 127).
`end`	Integer	Required	End index of zone (0 - 127).

If the value of the start is less than the end and this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateMultiZone - 506]:

Property	Type	Description
`count`	Integer	The count of the total number of zones available on the device
`index`	Integer	The index of `colors[0]`.
`colors`	Array	A list of the `LifxLanColorHSB` object.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.multiZoneGetColorZones({
    start : 0,
    end   : 7
  });
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "count": 16,
  "index": 0,
  "colors": [
    {
      "hue": 0,
      "saturation": 1,
      "brightness": 1,
      "kelvin": 3500
    },
    {
      "hue": 0,
      "saturation": 1,
      "brightness": 1,
      "kelvin": 3500
    },
    ...
  ]
}

Note that the actual number of elements in the colors is 8.

If the value of the start is equivalent to the end and this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateZone - 503]:

Property	Type	Description
`count`	Integer	The count of the total number of zones available on the device
`index`	Integer	The index of `colors[0]`.
`color`	`LifxLanColorHSB`	HSB color information.

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.multiZoneGetColorZones({
    start : 3,
    end   : 3
  });
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output the result as follows:

{
  "count": 16,
  "index": 3,
  "color": {
    "hue": 0,
    "saturation": 1,
    "brightness": 1,
    "kelvin": 3500
  }
}

multiZoneSetEffect(params) method

The multiZoneSetEffect() method sets the firmware effect to display on a multizone device [SetMultiZoneEffect - 508]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Requred	Description
`type`	Integer	Required	`0`: OFF, `1`: MOVE
`speed`	Integer	Required	Time in milliseconds for a complete animation cycle to occur
`duration`	Integer	Optional	Duration of effect in milliseconds. The default value is `0` a.k.a. infinite
`direction`	Integer	Optional	`0`: TOWARDS, `1`: AWAY

Lifx.discover().then((device_list) => {
  let dev = device_list[0];
  return dev.multiZoneSetEffect({
    type      : 1,
    speed     : 1000,
    duration  : 0,
    direction : 1
  });
}).then((res) => {
  console.log('Done!');
}).catch((error) => {
  console.error(error);
});

tileGetDeviceChain() method

The tileGetDeviceChain() method returns information about the tiles in the chain [GetDeviceChain - 701]. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows [StateDeviceChain - 702]:

Property	Type	Description
`start_index`	Integer	Starting tile index
`tile_devices`	Array	A list of Tile objects
`total_count`	Integer	Total number of tiles from `start_index`

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  return dev.tileGetDeviceChain();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch(console.error);

The code above will output results as follows:

{
  "start_index": 0,
  "tile_devices": [
    {
      "accel_meas_x": 138,
      "accel_meas_y": -86,
      "accel_meas_z": 2054,
      "user_x": 0,
      "user_y": 0,
      "width": 8,
      "height": 8,
      "device_version_vendor": 1,
      "device_version_product": 55,
      "device_version_version": 10,
      "firmware_build": "1548977726000000000n",
      "firmware_version_minor": 50,
      "firmware_version_major": 3
    },
    ...
  ],
  "total_count": 5
}

Note that the actual number of elements in the tile_devices array is 16.

As calling discover() automatically retrieves chain information for all relevant devices, the previous example could also be rewritten as follows to output the same information:

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  let chain = dev.deviceInfo.chain
  console.log(JSON.stringify(chain, null, '  '));
}).catch(console.error);

tileSetUserPosition(params) method

The tileSetUserPosition() method updates tile position offsets [SetUserPosition - 703]. This method returns a Promise object.

⚠️ Warning!
Make sure you have read and fully understand the Tile Control documentation before setting these values, as doing so may greatly upset users if you get it wrong.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Required	Description
`tile_index`	Integer	Required	Tile chain index
`user_x`	Float	Required	Horizontal tile offset
`user_y`	Float	Required	Vertical tile offset

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  return dev.tileSetUserPosition({
    tile_index: 0,
    user_x: -0.5,
    user_y: 1
  });
}).then((res) => {
  console.log('Done!');
}).catch(console.error);

tileGetTileState64(params) method

The tileGetTileState64() method returns the state of length number of tiles starting from tile_index [GetTileState64 - 707]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Required	Description
`tile_index`	Integer	Required	Starting tile index
`length`	Integer	Optional	Tiles retrieved from/including `tile_index` (default: `1`)
`x`	Integer	Optional	(default: `0`)
`y`	Integer	Optional	(default: `0`)
`width`	Integer	Optional	(default: `8`)

Note: While x, y and width properties are provided, the LIFX documentation states it only makes sense to set x and y to 0, and width to 8.

If this method fetches the information successfully, an array of hash objects—separate responses from each tile—will be passed to the resolve() function. Each hash object contains the following properties [StateTileState64 - 711]:

Property	Type	Description
`tile_index`	Integer	Tile chain index
`x`	Integer
`y`	Integer
`width`	Integer
`colors`	Array
+`hue`	Float	Hue in the range of 0.0 to 1.0.
+`saturation`	Float	Saturation in the range of 0.0 to 1.0.
+`brightness`	Float	Brightness in the range of 0.0 to 1.0.
+`kelvin`	Integer	Color temperature (°) in the range of 1500 to 9000.

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  return dev.tileGetTileState64({
    tile_index: 0,
    length: 5
  });
}).then((multi_res) => {
  console.log(JSON.stringify(multi_res, null, '  '));
}).catch(console.error);

The code above will output results as follows:

[
  {
    "tile_index": 0,
    "x": 0,
    "y": 0,
    "width": 8,
    "colors": [
      {
        "hue": 0.38889,
        "saturation": 1,
        "brightness": 0.10001,
        "kelvin": 9000
      },
      ...
    ]
   ]
  },
  {
    "tile_index": 1,
    "x": 0,
    "y": 0,
    "width": 8,
    "colors": [
      {
        "hue": 0.29619,
        "saturation": 1,
        "brightness": 0,
        "kelvin": 9000
      },
      ...
    ]
  },
  ...
}

Note that the actual number of elements in each colors array is 64.

tileSetTileState64(params) method

The tileSetTileState64() method updates the state of length number of tiles starting from tile_index [SetTileState64 - 715]. This method returns a Promise object.

This method takes a hash object as an argument containing properties as follows:

Property	Type	Required	Description
`tile_index`	Integer	Required	Starting tile index
`length`	Integer	Optional	Tiles updated from/including `tile_index` (default: `1`)
`x`	Integer	Optional	(default: `0`)
`y`	Integer	Optional	(default: `0`)
`width`	Integer	Optional	(default: `8`)
`duration`	Integer	Optional	Color transition time in milliseconds (default: `0`)
`colors`	Array	Required	Array of 64 HSBK color objects

Note: While x, y and width properties are provided, the LIFX documentation states it only makes sense to set x and y to 0, and width to 8.

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  return dev.tileSetTileState64({
    tile_index: 0,
    colors: [...Array(64)].map(() => ({
      hue: Math.floor(Math.random() * 360)/360,
      saturation: 1,
      brightness: Math.random(),
      kelvin: 3000
    }))
  });
}).then((res) => {
  console.log('Done!');
}).catch(console.error);

tileGetTiles() method

The tileGetTiles() method wraps the tileGetDeviceChain() method to return only the physically connected tiles in the device chain. This method returns a Promise object.

If this method fetches the information successfully, an array of hash objects will be passed to the resolve() function. Each hash object is a Tile object with the following additional properties injected:

Property	Type	Description
`tile_index`	Integer	Tile chain index
`left`	Float	Tile left x value (calculated via `user_x`)
`right`	Float	Tile right x value (calculated via `user_x`)
`top`	Float	Tile top y value (calculated via `user_y`)
`bottom`	Float	Tile bottom y value (calculated via `user_y`)

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  return dev.tileGetTiles();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

The code above will output results as follows:

[
  {
    "tile_index": 0,
    "left": 4,
    "right": 12,
    "top": -4,
    "bottom": 4,
    "accel_meas_x": 152,
    "accel_meas_y": -71,
    "accel_meas_z": 2053,
    "user_x": 0,
    "user_y": 0,
    "width": 8,
    "height": 8,
    "device_version_vendor": 1,
    "device_version_product": 55,
    "device_version_version": 10,
    "firmware_build": "1548977726000000000n",
    "firmware_version_minor": 50,
    "firmware_version_major": 3
  },
  ...
]

Note that the actual number of elements in the returned array equals however many are physically connected in the device chain.

tileGetTilesAndBounds() method

The tileGetTilesAndBounds() method wraps the tileGetTiles() method to also return a spatial bounds object for all the physically connected tiles in the device chain. This method returns a Promise object.

If this method fetches the information successfully, a hash object will be passed to the resolve() function. The hash object contains the properties as follows:

Property	Type	Description
`tiles`	Array	Array returned by the `tileGetTiles()` method
`bounds`	Object
+`left`	Float	Minimum `left` value for all tiles
+`right`	Float	Maximum `right` value for all tiles
+`top`	Float	Minimum `top` value for all tiles
+`bottom`	Float	Maximum `bottom` values for all tiles
+`width`	Float	The `right` value minus the `left` value
+`width`	Float	The `bottom` value minus the `top` value

Lifx.discover().then((device_list) => {
  let tileProductId = 55;
  let firstTile = (dev) =>
    dev.deviceInfo.productId === tileProductId
  let dev = device_list.find(firstTile);
  return dev.tileGetTilesAndBounds();
}).then((res) => {
  console.log(JSON.stringify(res, null, '  '));
}).catch((error) => {
  console.error(error);
});

{
  "tiles": [
    {
      "tile_index": 0,
      "left": 4,
      "right": 12,
      "top": -4,
      "bottom": 4,
      "accel_meas_x": 158,
      "accel_meas_y": -96,
      "accel_meas_z": 2065,
      "user_x": 0,
      "user_y": 0,
      "width": 8,
      "height": 8,
      "device_version_vendor": 1,
      "device_version_product": 55,
      "device_version_version": 10,
      "firmware_build": "1548977726000000000n",
      "firmware_version_minor": 50,
      "firmware_version_major": 3
    },
    ...
  ],
  "bounds": {
    "left": -4,
    "right": 12,
    "top": -20,
    "bottom": 4,
    "width": 16,
    "height": 24
  }
}

Note that the actual number of elements in the tiles array equals however many are physically connected in the device chain.

Release Note

v0.5.0 (2020-12-06)
- Improved the stability of controlling bulbs. An UDP unicast packet will be sent up to 10 times. An UDP broadcast packet will be sent 3 times.
- From this version, this module works on Node v12 or later.
v0.4.3 (2020-10-31)
- Updated the products.json. (Thanks to @r1ch)
v0.4.2 (2020-07-15)
- Allowed no Params in TurnOffBroadcast. (thanks to @sansnickel)
- Fixed typos in this document. (thanks to @r1ch)
v0.4.1 (2020-04-09)
- Added support for multizone effects (thanks to @paddy2k)
v0.4.0 (2019-10-08)
- Supported the tile messages (thanks to @furey)
v0.3.1 (2018-09-17)
- The lower limit of the kelvin property in the LifxLanColor object was changed from 2500 to 1500. (thanks to @nikteg)
v0.3.0 (2018-08-08)
- Added the brightness parameter to the LifxLanColorCSS and LifxLanColorRGB object. (thanks to @paolotremadio)
v0.2.2 (2018-08-07)
- The multiZoneSetColorZones() method did not accept a LifxLanColor object for the color parameter even though this document says the method does. The method accepted only a LifxLanColorHSB object. Now the method accepts a LifxLanColor object for the parameter. That is, the method accepts not only a LifxLanColorHSB object but also a LifxLanColorRGB, LifxLanColorXyb, and LifxLanColorCSS object. (thanks to @paolotremadio)
v0.2.1 (2018-07-10)
- Updated the products.json. (Thanks to @danielHHHH)
v0.2.0 (2018-07-01)
- Supported multihomed host. Now, you can discover devices expectedly even if your host computer has multiple network interfaces because broadcast packets are sent to all available network interfaces.
v0.1.0 (2018-06-10)
- Newly added the createDevice() method. (Thanks to @MarcGodard)
v0.0.3 (2018-06-09)
- Supported Node.js v10. (Thanks to @VanCoding)
v0.0.2 (2018-02-12)
- Updated product.json based on the latest LIFX product ID list table
v0.0.1 (2017-10-22)
- First public release

References

License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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