Trådfri-MQTT

This project mirrors most of the Trådfri gateways endpoints into MQTT and can be used to send commands to the Trådfri gateway over MQTT

See hemtjan.st/tradfri-mqtt for more information

Using NPM

Installing via NPM:

npm install -g tradfri-mqtt

To start the service:

# 192.168.0.99 = Your trådfri gateway
# abcdefgh = The pre-shared key printed under the gateway
# tcp://127.0.0.1:1883 = Address to MQTT

tradfri-mqtt -g 192.168.0.99 -p abcdefgh -a tcp://127.0.0.1:1883

Using docker

docker volume create tradfri-mqtt-data
docker run -d \
  --name tradfri-mqtt \
  --volume tradfri-mqtt-data:/data \
  --env TRADFRI_GATEWAY=192.168.0.99 \
  --env TRADFRI_PSK=abcdefgh \
  --env MQTT_ADDRESS=tcp://127.0.0.1:1883 \
  hemtjanst/tradfri-mqtt

For armv7 (i.e. raspberry pi 3+), use hemtjanst/tradfri-mqtt:arm7

Arguments

Argument	Alias	Environment Var	Description	Default
`--gateway <ip>`	`-g`	TRADFRI_GATEWAY	IP Address of Trådfri Gateway	Required
`--psk <key>`	`-p`	TRADFRI_PSK	Pre-shared key of gateway
`--mqtt tcp://mqtt-broker:1883`	`-a`	MQTT_ADDRESS	Address of MQTT broker	Required
`--mqttUsername foo`	`-n`	MQTT_USERNAME	Username of MQTT broker
`--mqttPassword bar`	`-w`	MQTT_PASSWORD	Password of MQTT broker
`--topicPrefix <topic>`	`-x`	MQTT_TOPIC_PREFIX	Topic prefix	`tradfri-raw`
`--topicCommand <topic>`	`-c`	MQTT_TOPIC_CMD	Topic for commands	`tradfri-cmd`
`--username <username>`	`-u`	TRADFRI_USERNAME	Username for authentication token
`--token <token>`	`-t`	TRADFRI_TOKEN	Authentication token (not the same as PSK!)
`--storage <path>`	`-s`	TRADFRI_STORAGE	Path to store data in

Getting updates

tradfri-mqtt will try to observe everything that's being published from the gateway, and mirror the messages into MQTT with the prefix tradfri-raw/.

For example, if the trådfri pushes and update for the lightbulb 65554, the raw json message will be published to the MQTT topic tradfri-raw/15001/65554.

Subscribing to tradfri-raw/# will give you all messages, tradfri-raw/15001/# all accessory updates and tradfri-raw/15004/# all group updates.

Sending commands

Commands to the trådfri gateway can be sent by publishing them to the MQTT topic tradfri-cmd. The payload should be a json-encoded string matching the definition:

export declare type TfCommand = {
    // CoAP Method
    method: "get" | "post" | "put" | "delete" | "reset",
    // URL without any prefixes, i.e. "15001/65540"
    url: string,
    // Optional id of the request, will be included in the reply
    id?: string,
    // Replies will be sent to this MQTT topic
    replyTopic?: string,
    // Payload of the request (for POST or PUT)
    payload?: object|string,
}

If replyTopic is set, a reply will be sent to that topic. The definition of the reply:

export declare type TfReply = {
    // ID of the request as set in TfCommand
    id?: string,
    // Response code, for example "2.04"
    code: string,
    // Format of the response, 50 = json
    format: number,
    // Payload, if format is json the payload is decoded into an object,
    // otherwise it will be a raw string
    payload: string|object,
}

Sample requests

Put request

Sent to the tradfri-cmd topic:

{
  "method": "put",
  "url": "15004/162515",
  "id": "group-set-on",
  "replyTopic": "tradfri-reply/xyz",
  "payload": {
    "5850": 1
  }
}

Received from the tradfri-reply/xyz topic:

{
  "id": "group-set-on",
  "code": "2.04",
  "format": null,
  "payload": ""
}

Get request

Sent to the tradfri-cmd topic:

{
  "method": "get",
  "url": "15004/162515",
  "id": "group-get",
  "replyTopic": "tradfri-reply/xyz"
}

Received from the tradfri-reply/xyz topic:

{
  "id": "group-get",
  "code": "2.05",
  "format": 50,
  "payload": {
    "5850": 1,
    "5851": 0,
    "9001": "Name of group",
    "9002": 1498068278,
    "9003": 162515,
    "9018": {
      "15002": {
        "9003": [65546,65547,65548]
      }
    },
    "9039": 220248
  }
}

License

hemtjanst/tradfri-mqtt

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