Translations:Node-RED/52/en
Sending commands
The mqtt out node is used to send a command to the controller via MQTT. In this case, the Topic field specifies the address of the mqtt-topic of the controller, in which the parameter must be written. Please note that at the end of the node address mqtt out you need to write /on, otherwise the parameter will not be written to the topic. For example, /devices/wb-mrgbw-d-fw3_129/controls/RGB Strip/on. Read more on the MQTT.
- Configuring nodes to work with MQTT
mqtt in node configuration example
mqtt out node setup example
Communication via MQTT in Node-Red
To send a parameter to the mqtt out node, you can use the inject node.
- Drag the inject node to the workspace.
- Connect it to the input of the mqtt out node.
- Go to the settings of the inject node and set the Name of the node, the Variable Type and its Value. Click the Done button.
An example of inject node settings for controlling a discrete parameter
inject node retry period setting field
An example of using the inject node
