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61 lines
1.9 KiB
Markdown
61 lines
1.9 KiB
Markdown
---
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layout: page
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title: "MQTT Testing"
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description: "Instructions how to test your MQTT setup."
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date: 2015-08-07 18:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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logo: mqtt.png
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redirect_from: /components/mqtt/#testing-your-setup
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---
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The `mosquitto` broker package ships commandline tools (often as `*-clients` package) to send and receive MQTT messages. As an alternative have a look at [hbmqtt_pub](http://hbmqtt.readthedocs.org/en/latest/references/hbmqtt_pub.html) and [hbmqtt_sub](http://hbmqtt.readthedocs.org/en/latest/references/hbmqtt_sub.html) which are provided by HBMQTT. For sending test messages to a broker running on localhost check the example below:
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```bash
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$ mosquitto_pub -h 127.0.0.1 -t home-assistant/switch/1/on -m "Switch is ON"
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```
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If you are using the embedded MQTT broker, the command looks a little different because you need to add the MQTT protocol version.
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```bash
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$ mosquitto_pub -V mqttv311 -t "hello" -m world
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```
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or if you are using a API password:
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```bash
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$ mosquitto_pub -V mqttv311 -u homeassistant -P <your api password> -t "hello" -m world
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```
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Another way to send MQTT messages by hand is to use the "Developer Tools" in the Frontend. Choose "Call Service" and then `mqtt/mqtt_send` under "Available Services". Enter something similar to the example below into the "Service Data" field.
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```json
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{
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"topic":"home-assistant/switch/1/on",
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"payload":"Switch is ON"
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}
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```
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The message should appear on the bus:
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```bash
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... [homeassistant] Bus:Handling <Event MQTT_MESSAGE_RECEIVED[L]: topic=home-assistant/switch/1/on, qos=0, payload=Switch is ON>
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```
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For reading all messages sent on the topic `home-assistant` to a broker running on localhost:
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```bash
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$ mosquitto_sub -h 127.0.0.1 -v -t "home-assistant/#"
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```
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For the embedded MQTT broker the command looks like:
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```bash
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$ mosquitto_sub -v -V mqttv311 -t "#"
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```
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Add the username `homeassistant` and your API password if needed.
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