Home Assistant template sensor, adding two sensor explained

Ricardo Costa — Wed, 28 Oct 2020 15:28:40 +0000

I’ going to show you how to configure a template sensor in home assistant that adds two power sensors. I’m using Home Assistant to automate lights, sensors, leds, TV, and other devices in my home. I have some Shelly 2.5 switches and these switches have dual power metering, one for each switch because Shelly 2.5 is a dual switch.

And I wanted to have a sensor that measures the total power instead of having 2 sensors separately.

So let’s see how I’ve configured a template sensor in home assistant that adds two power sensors. In the next yaml code you can see the sensors.

  - platform: mqtt
    unique_id: sensor_potencia_sala_jantar_tecto
    name: "Potência da luz do tecto da sala de jantar"
    state_topic: "shellies/sala_tecto/relay/0/power"
    unit_of_measurement: 'W'
  - platform: mqtt
    unique_id: sensor_potencia_sala_estar_tecto
    name: "Potência da luz do tecto da sala de estar"
    state_topic: "shellies/sala_tecto/relay/1/power"
    unit_of_measurement: 'W'

And for the custom sensor that has the sum of the two previous sensors, this is how I’ve configured the yaml

  - platform: template
    sensors:
      sensor_potencia_sala:
        unit_of_measurement: "W"
        value_template: "{{ (states('sensor.sensor_potencia_sala_jantar_tecto') | float) +
 (states('sensor.sensor_potencia_sala_estar_tecto') | float)}}"

Check out my previous post about configuring the Shelly 2.5 switch in Home Assistant.

The post Home Assistant template sensor, adding two sensor explained appeared first on Blog IT.

Home Assistant with Shelly 2.5 switch the easy way

Ricardo Costa — Tue, 20 Oct 2020 10:40:36 +0000

I’ve recently bought a Shelly 2.5 switch and this is how I’ve setup my Home Assistant. Here is my configuration.yaml for the switches. I’m controlling lights as a result I’m using the lights objects

I use the Home Assistant add-on named mosquitto as MQTT for everything so I can keep the communication system the same for all my devices and keep the management system simple.

First of all I configured my Shelly 2.5 thru the web interface to use MQTT. This is done in the “Internet & Security” configuration settings, “Advance Developer – Settings”.

I configured the username and password that was set in Mosquitto MQTT server in Home Assistant. Don’t forget the IP address of the Home Assistant server (port 1883).

I’ve used a custom MQTT prefix as you can see in the yaml files configuration below. I use this prefix as a way to give a name to my switch

# lights
light:
  - platform: mqtt
    unique_id: luz_sala_jantar_tecto
    name: "Luz do tecto da sala de jantar"
    state_topic: "shellies/sala_tecto/relay/0"
    command_topic: "shellies/sala_tecto/relay/0/command"
    payload_on: 'on'
    payload_off: 'off'
    retain: false
    qos: 1
  - platform: mqtt
    unique_id: luz_sala_estar_tecto
    name: "Luz do tecto da sala de estar"
    state_topic: "shellies/sala_tecto/relay/1"
    command_topic: "shellies/sala_tecto/relay/1/command"
    payload_on: 'on'
    payload_off: 'off'
    retain: false
    qos: 1

The Shelly 2.5 has temperature sensor so I’ve configured it like this

sensor:
  - platform: mqtt
    unique_id: sensor_temperatura_sala_tecto
    name: "Temperatura da luz do tecto da sala"
    state_topic: "shellies/sala_tecto/temperature"
    unit_of_measurement: 'ºC'

There is a power sensor so check the configuration here

sensor:
  - platform: mqtt
    unique_id: sensor_potencia_sala_jantar_tecto
    name: "Potência da luz do tecto da sala de jantar"
    state_topic: "shellies/sala_tecto/relay/0/power"
    unit_of_measurement: 'W'

And for the energy sensor, this is the way I’ve set it up.

sensor
  - platform: mqtt
    unique_id: sensor_energia_sala_jantar_tecto
    name: "Energia da luz do tecto da sala de jantar"
    state_topic: "shellies/sala_tecto/relay/0/energy"
    unit_of_measurement: 'Wh'

And I’ve used a binary sensor for the the temperature alert.

binary_sensor:
  - platform: mqtt
    unique_id: alerta_temperatura_luz_sala_tecto
    name: "Alerta de temperatura da luz do tecto da sala"
    state_topic: "shellies/sala_tecto/overtemperature"
    device_class: "heat"
    payload_off: "0"
    payload_on: "1"

If you want you can check the Shelly 2.5 specification here at the official Selly website.

And I’m a Mauser.pt store fan so go check the site.

The post Home Assistant with Shelly 2.5 switch the easy way appeared first on Blog IT.

shelly Archives - Blog IT

Home Assistant template sensor, adding two sensor explained

Home Assistant with Shelly 2.5 switch the easy way