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add home assistant page and index link
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docs/software/mqtt/home-assistant.mdx
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docs/software/mqtt/home-assistant.mdx
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---
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id: home-assistant
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title: Home Assistant
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sidebar_label: Home Assistant
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sidebar_position: 4
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---
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### Home Assistant Integrations for Meshtastic
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Integrating Meshtastic into Home Assistant brings a new level of control and monitoring to your mesh network. On this page, we'll guide you through the process of creating Meshtastic MQTT sensor entities within Home Assistant. Whether you want to keep an eye on battery levels, environmental conditions, or even receive notifications from your mesh network, these integrations provide you with the tools to make it happen.
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:::info
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It is highly recommended to download MQTT Explorer for analyzing the JSON threads that come across the broker. This can be downloaded here: http://mqtt-explorer.com/
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:::
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## Create Meshtastic MQTT Sensor Entities
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- Ensure your mesh unit is connected to your MQTT broker and using JSON as an output.
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- Open configuration.yaml and include the following line:
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```yaml
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mqtt: !include mqtt.yaml
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```
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- Create a new text file called `mqtt.yaml` in the root directory of home assistant (the same folder as configuration.yaml).
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- Copy the following code to the mqtt.yaml file.
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### Default Node Telemetry Example
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```yaml
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sensor:
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# Node #1
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- name: "Node 1 Battery Voltage"
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unique_id: "node_1__battery_voltage"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and
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value_json.payload.voltage is defined and
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value_json.payload.temperature is not defined %}
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{{ (value_json.payload.voltage | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_battery_voltage') }}
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{% endif %}
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unit_of_measurement: "Volts"
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# Telemetry packets come in two flavors: The default node telemetry, and the I2C sensor data.
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# Both packets contain "voltage" so we check for temperature to ignore the sensor packet here.
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- name: "Node 1 Battery Percent"
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unique_id: "node_1_battery_percent"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.battery_level is defined %}
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{{ (value_json.payload.battery_level | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_battery_percent') }}
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{% endif %}
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unit_of_measurement: "%"
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- name: "Node 1 ChUtil"
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unique_id: "node_1_chutil"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.channel_utilization is defined %}
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{{ (value_json.payload.channel_utilization | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_chutil') }}
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{% endif %}
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unit_of_measurement: "%"
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- name: "Node 1 AirUtilTX"
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unique_id: "node_1_airutiltx"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.air_util_tx is defined %}
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{{ (value_json.payload.air_util_tx | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_airutiltx') }}
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{% endif %}
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unit_of_measurement: "%"
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```
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### Telemetry Module Entities
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- If you have environmental sensors installed, create entities for these by including some or all of the following blocks:
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```yaml
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- name: "Node 1 Temperature"
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unique_id: "node_1_temperature"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.temperature is defined %}
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{{ (((value_json.payload.temperature | float) * 1.8) +32) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_temperature') }}
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{% endif %}
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unit_of_measurement: "F"
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# For Celsius use: {{ (value_json.payload.temperature | float) | round(1) }}
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# For Fahrenheit use: {{ (((value_json.payload.temperature | float) * 1.8) +32) | round(2) }}
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- name: "Node 1 Humidity"
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unique_id: "node_1_humidity"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.relative_humidity is defined %}
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{{ (value_json.payload.relative_humidity | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_humidity') }}
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{% endif %}
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unit_of_measurement: "%"
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- name: "Node 1 Pressure"
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unique_id: "node_1_pressure"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.barometric_pressure is defined %}
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{{ (value_json.payload.barometric_pressure | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_pressure') }}
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{% endif %}
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unit_of_measurement: "hPa"
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- name: "Node 1 Gas Resistance"
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unique_id: "node_1_gas_resistance"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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state_class: measurement
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.gas_resistance is defined %}
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{{ (value_json.payload.gas_resistance | float) | round(2) }}
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{% else %}
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{{ states('sensor.node_1_gas_resistance') }}
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{% endif %}
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unit_of_measurement: "MOhms"
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```
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### Message Entities
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- For added functionality you can create an entity for messages received from a node:
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```yaml
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- name: "Node 1 Messages"
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unique_id: "node_1_messages"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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value_template: >-
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{% if value_json.from == 4038675309 and value_json.payload.text is defined %}
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{{ value_json.payload.text }}
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{% else %}
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{{ states('sensor.node_1_messages') }}
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{% endif %}
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```
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### Additional Entities
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Home Assistant entities can be created for any data type that is published to MQTT. For example: altitude, latitude_i, longitude_i, time, current, and neighbors. Use the templates above as a guide to create additional entities if desired.
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### Configure With Your Topic & Node ID's
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- In every entity, replace `msh/2/json/LongFast/!67ea9400` with the topic your node publishes to. In this example, `!67ea9400` refers to the node that has mqtt enabled on the mesh and is publishing to the broker.
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- In every entity replace `4038675309` with the node number of the radio you wish to monitor. In this example `4038675309` is the node on the mesh with environment sensors and telemetry that I wish to observe. Node numbers can be found by monitoring the output in MQTT Explorer, listening with the MQTT addon or by using the Python CLI with `meshtastic --info`.
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### Additional Nodes
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Copy and paste these entities then change `name`, `unique_id`, `from`, and `states` to create entities from any additional nodes' parameters:
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```yaml
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- name: "Node 2 Messages"
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unique_id: "node_2_messages"
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state_topic: "msh/2/json/LongFast/!67ea9400"
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value_template: >-
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{% if value_json.from == 695318008 and value_json.payload.text is defined %}
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{{ value_json.payload.text }}
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{% else %}
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{{ states('sensor.node_2_messages') }}
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{% endif %}
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```
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### Check Configuration & Reload YAML
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- In Home Assistant, run `CHECK CONFIGURATION` in the developer tools section and then reload all yaml configuration.
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:::danger warning
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Always Check Configuration before reloading YAML or restarting Home Assistant to identify errors.
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:::
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## Create Dashboard Cards
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### Entities Card for Telemetry
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Create a new Entities Card and select the entities you have created.
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[<img src="/img/software/mqtt/ha_entities_card.png" style={{zoom: '40%'}} />](/img/software/mqtt/ha_entities_card.png)
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### Logbook Card for Messaging
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The logbook card is useful to keep a record of incoming messages from the mesh. Below is an example of how the logbook card would be set up.
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[<img src="/img/software/mqtt/ha_logbook_card.png" style={{zoom: '40%'}} />](/img/software/mqtt/ha_logbook_card.png)
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## Trigger HA Automations
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It is possible to have Home Assistant trigger automations based on messages or events on your mesh.
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### Notifications
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This example waits for a message containing @Tropho and then sends a pop-up notification to his flip phone with the message. Optionally you can have ALL messages from the mesh sent as HA notifications to your phone.
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[<img src="/img/software/mqtt/ha_at_tropho.png" style={{zoom: '50%'}} />](/img/software/mqtt/ha_at_tropho.png)
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Add the following code to your automations.yaml file. Be sure to modify the `topic`, `regex_search`, and `service` for your configuration.
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```yaml
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- alias: Meshtastic - New notification
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description: any message with an @Tropho will send to mobile device
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trigger:
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- platform: mqtt
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topic: msh/2/json/LongFast/!67ea9400
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condition:
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- condition: template
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value_template: "{{ trigger.payload_json.payload.text | regex_search('@Tropho') }}"
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# or send ALL messages from the mesh to HA notifications
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# value_template: "{{ trigger.payload_json.payload.text is defined}}"
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enabled: true
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action:
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- service: notify.mobile_app_trophos_galaxy_z_flip5
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data:
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# show the message as coming from "Meshtastic":
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message: "Meshtastic: {{ trigger.payload_json.payload.text }}"
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# or show the device id instead:
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# message: "{{ trigger.payload_json.from }}: {{ trigger.payload_json.payload.text }}"
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- delay:
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hours: 0
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minutes: 0
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seconds: 30
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milliseconds: 0
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mode: single
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```
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This same type of automation is very useful to trigger other actions in Home Assistant. For example, you could turn on a fan when the temperature reaches a certain value, or a play a sound on a speaker when a new message is received.
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@ -140,3 +140,5 @@ An existing public [MQTT broker](https://mosquitto.org) will be the default for
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- [Sending/receiving messages on mosquitto server using python](/docs/software/mqtt/python.mdx)
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- [Using MQTT with Node-RED](/docs/software/mqtt/nodered.mdx)
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- [Using MQTT with Home Assistant](/docs/software/mqtt/home-assistant.mdx)
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