Show alert if values don't match

Configuration Frontend
1

I’m monitoring my IP address at my gateway and with my dynamic dns address as two entities. Is there a card that I can use to only show the card when the values do not match? I don’t want to setup an automation to alert me, tried that before and it’s too noisy. I’d rather just see that there is a difference and see why it didn’t update properly.

2

A markdown card with a template that says matching or not matching?

3

I didn’t think you can you do an entities card with a sub markdown card. Or is there a template that I can use to pull in the values of sensors?

4

If you use markdown you just use templates to make the card say whatever you want.

If you don’t want to do it that way and have a sensor entity showing your up address you could use Conditional card. If condition=true show card, false - do not show card.

5

If I figure out how to do either markdown or conditional card I’d do it. The conditional card I looked at but the sensor doesn’t have a state that I can require for it. I also tried using as a

type: conditional
conditions: 
  - entity:  freebsd_router_external_ip
    state: homeassistant_dns_lookup
...

… but that’s not a valid state.

I also tried adding | string around it as a value_template but that didn’t work either.

Edit: Sorry I missed the sensor. in front of those two entries when I recreated it here. I did have them in my “attempt”.

6

What are the two entities you are comparing?

7 
sensor.freebsd_router_external_ip
sensor.homeassistant_dns_lookup
8

Just in case someone else runs across this, this was the solution:

Both @nickrout and @NathanCu were right, Nathan’s answer came closest to the final card.

type: conditional
conditions:
  - entity: sensor.freebsd_router_external_ip
    state: ''
card:
  type: markdown
  content: |-
    {% set iip = states('sensor.freebsd_router_external_ip') %}
    {% set eip = states('sensor.homeassistant_dns_lookup') %}

    {% if iip != eip -%}
      IP mismatch  {{ states('sensor.freebsd_router_external_ip') }} != {{ states('sensor.homeassistant_dns_lookup') }}
    {%- endif %}
1 Like