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Update binary_sensor.mqtt.markdown for #19195 (#8021)

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* Update binary_sensor.mqtt.markdown

* Update binary_sensor.mqtt.markdown

* Update source/_components/binary_sensor.mqtt.markdown

Co-Authored-By: emontnemery <erik@montnemery.com>

* Update source/_components/binary_sensor.mqtt.markdown

Co-Authored-By: emontnemery <erik@montnemery.com>

* Update source/_components/binary_sensor.mqtt.markdown

Co-Authored-By: emontnemery <erik@montnemery.com>
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emontnemery 2019-01-02 20:23:34 +01:00 committed by Franck Nijhof
parent a730cd97bc
commit 386a104517
1 changed files with 13 additions and 3 deletions
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source/_components/binary_sensor.mqtt.markdown
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@ -86,7 +86,7 @@ device_class:
required: false
type: string
value_template:
description: Defines a [template](/docs/configuration/templating/#processing-incoming-data) to extract a value from the payload.
description: "Defines a [template](/docs/configuration/templating/#processing-incoming-data) to extract a value from the payload. Available variables: `entity_id`."
required: false
type: string
force_update:
@ -163,13 +163,24 @@ binary_sensor:
```
{% endraw %}
### {% linkable_title Toggle the binary sensor each time a message is received on state_topic %}
{% raw %}
```yaml
# Example configuration.yaml entry
binary_sensor:
- platform: mqtt
state_topic: "lab_button/cmnd/POWER"
value_template: "{%if is_state(entity_id,\"on\")-%}OFF{%-else-%}ON{%-endif%}"
```
{% endraw %}
### {% linkable_title Get the state of a device with ESPEasy %}
Assuming that you have flashed your ESP8266 unit with [ESPEasy](https://github.com/letscontrolit/ESPEasy). Under "Config" is a name ("Unit Name:") set for your device (here it's "bathroom"). A configuration for a "Controller" for MQTT with the protocol "OpenHAB MQTT" is present and the entries ("Controller Subscribe:" and "Controller Publish:") are adjusted to match your needs. In this example, the topics are prefixed with "home". Also, add a "Switch Input" in the "Devices" tap with the name "switch" and "button" as value.
As soon as the unit is online, you will get the state of the attached button.
```bash
```
home/bathroom/status Connected
...
home/bathroom/switch/button 1
@ -186,4 +197,3 @@ binary_sensor:
payload_on: "1"
payload_off: "0"
```