Hi,
Can someone help me with a sensor that gives a status for the air quality based on the CO2 and TVOC values?
For example:
When Co2 gives the value between 400 and 900
AND the TVOC is between 0 and 65
the status should be “Very good”
When Co2 gives the value between 900 and 1200
AND the TVOC is between 65 and 220
the status should be “Good”
if the sensor could also give a color that would be great!!!
thank you very much in advance!
I have something like this but it not working:
- platform: template
sensors:
air_quality:
friendly_name: "Air quality"
value_template: >-
{% set airqualityco2 = states('sensor.toon_luchtkwaliteit_co2_koolstofdioxide') | float %}
{% set airqualitytvoc = states('sensor.toon_luchtkwaliteit_tvoc_vluchtige_organische_stoffen') | float %}
{% if 400 < airqualityco2 < 900 %} and {% if 0 < airqualitytvoc < 65 %}
VeryGood
{% elif 900 > airqualityco2 < 1200 %} and {% if 65 < airqualitytvoc < 220 %}
Good
{% else %}
Off
{% endif %}
Your template isn’t indented from the field
Red should have 2 more spaces in front of each line
secondly, your template is incorrect.
{% set co2 = states('sensor.toon_luchtkwaliteit_co2_koolstofdioxide') | float %}
{% set tvoc = states('sensor.toon_luchtkwaliteit_tvoc_vluchtige_organische_stoffen') | float %}
{% if 400 < co2 < 900 and 0 < tvoc < 65 %}
VeryGood
{% elif 900 < co2 < 1200 and 65 < tvoc < 220 %}
Good
{% else %}
Off
{% endif %}
thanks for the quick reply! hmm thats looks more logical. I now have this code but it still falls over an error in the ‘set’ line
sensor:
- platform: template
sensors:
air_quality:
friendly_name: "Air quality"
value_template: >-
{% set co2 = states('sensor.toon_luchtkwaliteit_co2_koolstofdioxide') | float %}
{% set tvoc = states('sensor.toon_luchtkwaliteit_tvoc_vluchtige_organische_stoffen') | float %}
{% if 400 < co2 < 900 and 0 < tvoc < 65 %}
VeryGood
{% elif 900 < co2 < 1200 and 65 < tvoc < 220 %}
Good
{% else %}
Off
{% endif %}
error:
Error loading /config/configuration.yaml: while scanning for the next token
found character '\t' that cannot start any token
in "/config/packages/test.yaml", line 7, column 1
You’re mixing tabs and spaces in configuration.yaml, you can’t do that. Use either tabs or use spaces. It’s recommended to only use spaces.
I just looked at what you pasted, all the t’s represent where you have tabs that should be spaces
sensor:
- platform: template
sensors:
air_quality:
friendly_name: "Air quality"
value_template: >-
tttttttt {% set co2 = states('sensor.toon_luchtkwaliteit_co2_koolstofdioxide') | float %}
tttttttt {% set tvoc = states('sensor.toon_luchtkwaliteit_tvoc_vluchtige_organische_stoffen') | float %}
{% if 400 < co2 < 900 and 0 < tvoc < 65 %}
VeryGood
tttttttt {% elif 900 < co2 < 1200 and 65 < tvoc < 220 %}
Good
tttttttt {% else %}
Off
tttttttt {% endif %}
seriously? I didnt know that 
It looks like the template is valid now, I will test it further this weekend, thanks and have a good weekend!
All whitespace based files typically only want spaces. Some allow tabs or spaces. It’s always safest to just use spaces.
I just tested (couldn’t wait for the weekend ). the status seems wrong. the values are currently
sensor:
- platform: template
sensors:
air_quality:
friendly_name: "AirQuality"
value_template: >-
{% set co2 = states('sensor.toon_luchtkwaliteit_co2_koolstofdioxide') | float %}
{% set tvoc = states('sensor.toon_luchtkwaliteit_tvoc_vluchtige_organische_stoffen') | float %}
{% if 400 > co2 < 900 and 0 > tvoc < 65 %}
VeryGood
{% elif 900 > co2 < 1200 and 65 > tvoc < 220 %}
Good
{% elif 1200 > co2 < 2000 and 220 > tvoc < 660 %}
Fair
{% elif 2000 > co2 < 5000 and 660 > tvoc < 2200 %}
Bad
{% elif 5000 > co2 < 10000 and 2200 > tvoc < 5000 %}
Warning
{% else %}
Off
{% endif %}
the co2 actually falls into “fair” but TVOC “good”.
if they both can’t get in between, he should take the ELSE right? Or am I missing something here?
value1 < what_you're_checking < value2
You broke all the syntax by flipping the <
the value of tvoc (for status Warning) should be between 2200 and 5000. so a value greater than 2200, don’t I need the “greater than” sign in that case? and at 5000 it must be a value under 5000. then I assume I need to use a “less than” sign
or am I thinking wrong?
So I need to change everything to <
right?
But that doesn’t make sense to me to be honest
Yes
How does it not?
if you want to check a value being greater than 40…
40 < value
if you want to check a value less than 100…
value < 100
if you want to check if the value is greater than 40 but less than 100…
40 < value < 100
after I read it again I understand
thanks for your explanation and effort. it now works the way I wanted it to.