diff --git a/bundles/org.openhab.binding.mqtt.generic/README.md b/bundles/org.openhab.binding.mqtt.generic/README.md index dba6a925836d0..f70576b93b237 100644 --- a/bundles/org.openhab.binding.mqtt.generic/README.md +++ b/bundles/org.openhab.binding.mqtt.generic/README.md @@ -74,7 +74,7 @@ You can add the following channels: * __transformationPattern__: An optional transformation pattern like [JSONPath](http://goessner.net/articles/JsonPath/index.html#e2) that is applied to all incoming MQTT values. * __transformationPatternOut__: An optional transformation pattern like [JSONPath](http://goessner.net/articles/JsonPath/index.html#e2) that is applied before publishing a value to MQTT. * __commandTopic__: The MQTT topic that commands are send to. This can be empty, the thing channel will be read-only then. Transformations are not applied for sending data. -* __formatBeforePublish__: Format a value before it is published to the MQTT broker. The default is to just pass the channel/item state. If you want to apply a prefix, say "MYCOLOR,", you would use "MYCOLOR,%s". If you want to adjust the precision of a number to for example 4 digits, you would use "%.4f". +* __formatBeforePublish__: Format a value before it is published to the MQTT broker. The default is to just pass the channel/item state. If you want to apply a prefix, say "MYCOLOR,", you would use "MYCOLOR,%s". Currently only "%s" is supported. * __postCommand__: If `true`, the received MQTT value will not only update the state of linked items, but command it. The default is `false`. You usually need this to be `true` if your item is also linked to another channel, say a KNX actor, and you want a received MQTT payload to command that KNX actor.