Automation with sun.sun not working

Installation Home Assistant OS
1

Hi, I have an automation that has been working for me for a long time, but has suddenly stopped working.

The automation is simple. I want to open my roller shutters at sunrise, but not before 7:30. The automation code is:

- id: '1578575595853'
  trigger:
    - platform: sun
      event: sunrise
    - platform: time
      at: "07:30:00"
  condition:
    - condition: time
      after: '07:29:59'
    - condition: state
      entity_id: sun.sun
      state: 'above_horizon'
  action:
  - service: script.subir_persianas_automatico
  - data:
      message: 🔼 Subiendo persianas automáticamente
    service: notify.telegram_casa

Currently the sunrise time is over 7:40. The last time it worked was the day with sunrise at 7:46. Before that day it always worked fine. But now it not working.

I suppose it is not working between 7:30 and 7:45, but why? I don’t undestand which the problem is.

Thanks

2

Question: at sunrise, is the sun already above horizon ? Or is the sun above horizon after sunrise ?

3

Thanks @francisp.

I suppose the sun is above_horizon when sunrise trigger the automation because, if not so, the automation would never have worked. Three days ago, and all the previous days, the automation have worked perfectly

4

have you see the note here?

and have you tried using this sunrise condition instead of state condition?
I think that’s your issue - you’re trying to combine event: sunrise with sun.sun: above_horizon, but it might be not the same and your condition blocks action… :wink:

5

Thanks @AhmadK

I have changed the automation to:

- id: '1578575595853'
  alias: Subir persianas automáticamente
  description: Sube las persianas cuando sale el sol
  trigger:
    - platform: sun
      event: sunrise
    - platform: time
      at: "07:30:00"
  condition:
    - condition: sun
      after: sunrise
    - condition: time
      after: '07:29:59'
  action:
  - service: script.subir_persianas_automatico

I will see if it works tomorrow :slight_smile:

1 Like
6

if it doesn’t work, you might need to do with condition: sun something similar to what you’ve done with condition: time - as per example there, `after_offset: “-00:01:00”

just a thought. please keep us updated.

7

@AhmadK it works like a charm :blush:.

I have only replaced the state condition with the sun condition, and everything start working again

Thank you

1 Like
8

Technically, sunrise and sunset occur when the sun’s elevation is - 0.83 degrees below the horizon. This is so the tip of the sun is just about level with the horizon.
The 0.83 is made up of two components 1. The angular radius of the sun 2. The lens effect of the Earth’s atmosphere which tends to make it look higher than it actually is (at low elevations)
This is used by Phil in his enhanced sun component (and in sun.sun too)

There’s a good Wikipedia article on it I think …

Yeah found it…

1 Like
9

You could write ‘07:30:00’ here as ‘after’ actually means >= not just > so it keeps the code easier on the eye (funnily enough Phil corrected me on that quite recently too :rofl: )

10

You are right. I had 7:30 but i changed it testing if this could be the problem (no sense, but you know, testing all possibilities when something doesn’t work :joy:)

Thanks!!