Node-RED nodes to communicate with IKEA TRÅDFRI lights.

Two, really easy to use, nodes that will help you to:

• Get information on all devices and or groups
• Set the state - on/off - on devices or groups
• Set the brightness on devices or groups
• Set the color on devices

Set state (on/off/brightness/color) on an IKEA TRÅDFRI device or group

payload object | string

either a string with `on` or `off` or an object describing the action

1. Standard output

   payload boolean | optional

   if output is enabled success or failure is described by true or false

If msg.payload is a a string (on/off) a device or group must have been defined in the node. If msg.payload is an object any information will override defined attributes in the node. The following attributes of the object are available:

• tradfri_id (Integer) - optional - Not needed if target has been specified in the node
• type (String) - optional - ['group', 'device'] - specifies if the call is for a group or device. Not needed if target has been specified in the node
• state (String) - ['on', 'off', 'toggle'] - specifies the state instruction
• brightness (Integer) - [0-254] - specifies the brightness of the instruction
• color (String) - [hex color value, 'cool', 'normal', 'warm'] - color code (HEX - e.g. 'ffffff' or focus, cool, everyday, normal, relax, warm, cold sky, cool daylight, cool white, sunrise, warm white, warm glow, candlelight, warm amber, peach, dark peach, saturated red, pink, light pink, saturated pink, light purple, saturated purple, blue, light blue, lime, yellow)
• transitiontime (Integer) - time in seconds to transition from one state to another

Examples: msg.payload = 'on'; or msg.payload = { tradfri_id: 1234, type:'device', state: 'on', color: 'cool'}

Retrieves IKEA TRÅDFRI device information from your IKEA hub.

payload string | integer | optional

the device or group id to lookup

1. Standard output

   payload object | array

   Device, group object or an array with all groups and devices

If msg.payload is a number the details of that device or group will be retrieved and returned in msg.payload as an object. If msg.payload is not set or is not a number the complete structure will be retrieved from the defined IKEA Hub.

The Config setting requires a number of parameters:

• Security Code - As found on the sticker on the bottom of the IKEA TRÅDFRI hub
• IP address - The IP address of the IKEA TRÅDFRI hub
• CoAP path - The file system path to the CoAP library that communicates with the IKEA TRÅDFRI hub. A set of precompiled versions of libcoap is available to choose from. If they don't work or you want to be sure to use the latest version, please follow the instructions to compile from the Github repo of libcoap.
• App Identity - Automatically generated when requesting an preshared key - DTLS Identity
• Preshared key - This value will be generated by the IKEA hub once for each App Identity and needs to be stored. It is used when controlling the lights together with the App Identity

Look at node-tradfri-argon on instructions on how to get or compile the libcoap library. The executable will be in the [examples] directory when it has finished the compilation. E.g. /home/pi/libcoap/examples/coap-client