Blogpost about 0.7 release

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Paulus Schoutsen 2015-08-30 23:41:08 -07:00
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---
layout: page
title: "MQTT Sensor support"
description: "Instructions how to integrate MQTT sensors within Home Assistant."
date: 2015-05-30 23:21
sidebar: false
comments: false
sharing: true
footer: true
---
<img src='/images/supported_brands/mqtt.png' class='brand pull-right' />
This generic sensor implementation uses the MQTT message payload
as the sensor value. If messages in this state_topic are published
with RETAIN flag, the sensor will receive an instant update with
last known value. Otherwise, the initial state will be undefined.
```yaml
# Example configuration.yml entry
sensor:
platform: mqtt
name: "MQTT Sensor"
state_topic: "home/bedroom/temperature"
unit_of_measurement: "ºC"
```
state_topic: The MQTT topic subscribed to receive sensor values. *Required*
name: The name of the sensor. Default is 'MQTT Sensor'. *Optional*
unit_of_measurement: Defines the units of measurement of the sensor, if any. *Optional*