Wrong brightness from time in template if statement

Saturnus · March 18, 2019, 7:52pm

Having an automation that contains this action:

  action:
  - service: light.turn_on
    data_template:
      entity_id: light.hallway
      color_temp: 250
      brightness: >-
        {% if now().hour < 6 %}
        {{ 8 }}
        {% elif now().hour < 9 %}
        {{ (((now().hour*60 + now().minute) * (1.0222)) - 360 ) | round(0) }}
        {% elif now().hour < 22 %}
        {{ 192 }}
        {% else %}
        {{ (((now().hour*60 + now().minute) * (-1.5333)) + 2216 ) | round(0) }}
        {% endif %}

To my understanding, in an if statement the first one with outcome true will be set.
A few times a week the brightness is set to 8 while the hour is not smaller than 6 but e.g. 20. Why is it set to 8 then?

petro · March 18, 2019, 8:32pm

Your template is correct. Your problem doesn’t lie in this. Do you have another automation that turns on the light?

Saturnus · March 18, 2019, 8:53pm

An automation that triggers the one above when a door is opened, but with condition that the light is off.
An automation that turns on the light with 255 brightness when an entity comes home.
Automations that turn on the light when a Xiaomi button is used.
Automations that set the light to a specific colour from actionable notifications on iOS.

All of these did not happen.

If I remember correctly I saw this brightness 8 being set when the original (first post) automation was triggered by it’s motion sensors. It’s also the only automation I have that would set that light to brightness 8.

petro · March 19, 2019, 12:50am

Well the template is correct. I set up a test quickly to verify your logic and look at the outputs. All hours and minute combinations of the day are set correctly. Starting at 6 it slowly increases to 192 until 9 am and stays steady until 11 pm. Then it slowly drops to 10 at 11:59 pm and it’s 8 again at midnight. So, if what you are saying is correct and it’s getting set wrong, then it’s possible that your timezone in HA or your timezone in your OS is wrong. Or the hardware is failing. You may also want to have your logs set to info and watch state changes to verify that 8 is being sent to it.

petro · March 19, 2019, 12:54am

time	brightness
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Saturnus · March 19, 2019, 9:20am

Thanks for checking.
HA time and timezone is ok.
Device time and timezone is ok.
A few weeks ago I had to enable hourly time sync though because when syncing once a day it was some minutes (~7) off.

It wouldn’t be the case that reading the time during this hourly sync results in trouble, right?

Will be difficult to debug as it only happens a few times a week.

petro · March 19, 2019, 11:55am

Honestly, I don’t know. I’ve never used sync.

I agree, but in order to track it down. Maybe send yourself a message. Make an automation or something that triggers between the non 8 hours and send you the message if the brightness is 8. Then immediately go check the info logs. Or at least you have a timestamp to then check the logs later at night.

Saturnus · March 21, 2019, 2:26pm

Notification for brightness < 9 is set up and working.
Just got a hit and there is no log for it on the INFO level. At least, the following one is related, but this seems to be happening when the turn_off is activated (id: 001).
ERROR (MainThread) [homeassistant.helpers.condition] Error during template condition: UndefinedError: 'mappingproxy object' has no attribute 'brightness'

Can increase the log level but then we have to be more specific to prevent thousands of entries.

Here is the full automation including the one it enables:

- id: '002'
  alias: Hallway lamp dynamic brightness < Motion
  trigger:
  - entity_id: binary_sensor.motion_sensor_1, binary_sensor.motion_sensor_2
    platform: state
    to: 'on'
  condition:
  - condition: state
    entity_id: light.hallway_sphere_hanging
    state: 'off'
#  - condition: numeric_state
#    entity_id: 'sensor.illumination_1'
#    below: 40
#  - condition: numeric_state
#    entity_id: 'sensor.illumination_2'
#    below: 100
  action:
  - service: light.turn_on
    data_template:
      entity_id: light.hallway_sphere_hanging
      color_temp: 250
      brightness: >-
        {% if now().hour < 6 %}
        {{ 8 }}
        {% elif now().hour < 9 %}
        {{ (((now().hour*60 + now().minute) * (46/45)) - 360 ) | round(0) }}
        {% elif now().hour < 22 %}
        {{ 192 }}
        {% else %}
        {{ (((now().hour*60 + now().minute) * -(184/119)) + 2233.0084 ) | round(0) }}
        {% endif %}
  - service: automation.turn_on
    data:
      entity_id: automation.hallway_lamp_off_no_motion_2_min

- id: '001'
  alias: Hallway lamp off < No motion 2 min.
  trigger:
    platform: state
    entity_id: binary_sensor.motion_sensor_1, binary_sensor.motion_sensor_2
    to: 'off'
  condition:
    condition: and
    conditions:
      - condition: state
        entity_id: binary_sensor.motion_sensor_1
        state: 'off'
      - condition: state
        entity_id: binary_sensor.motion_sensor_2
        state: 'off'
  action:
  - service: light.turn_off
    data:
      entity_id: light.hallway_sphere_hanging
  - service: automation.turn_off
    data:
      entity_id: automation.hallway_lamp_off_no_motion_2_min

I updated the formula for better accuracy.
There are 2 binary sensors that can trigger it, but this was happening also when there was only one binary sensor.

petro · March 21, 2019, 2:32pm

is another automation stepping on it’s toes?

points to an automation with a condition that is checking brightness.

Saturnus · March 21, 2019, 2:52pm

Seems like the debugging automation caused this.

- id: '456789'
  alias: Debug - Hallway lamp b<9 > Phone
  trigger:
     platform: template
     value_template: '{{ states.light.hallway_sphere_hanging.attributes.brightness | int < 9 }}'
  condition:
  - condition: time
    after: '06:01'
    before: '23:59'
  action:
    service: notify.ios_phone
    data:
      message: "Hallway lamp b<9"

Disabled: gone.
Enabled again: back.
Guess this is because the attribute brightness disappears when a light is off.

petro · March 21, 2019, 2:58pm

that it does. change template to:

     value_template: "{{ 0 < state_attr('light.living_room','brightness') | int < 9 }}"

Saturnus · March 21, 2019, 3:10pm

Nice works indeed, no more error. Why is that?

Any idea how to proceed on the main problem of the topic now? Maybe enable more specific debug level.

petro · March 21, 2019, 3:12pm

because the method returns None, and when none gets converted into an int with the int filter, it makes it zero. So that template is looking for values between 0 and 9, which should be what you are looking for.

Honestly no, need to see what could be causing the problem. I’d say debug logging but don’t keep it on too long. You’ll have a huge log.

Saturnus · March 21, 2019, 3:32pm

Thanks.

Seems like I was not running on info level but on warn level.
Now:


logger:
  default: info
#  default: warn
  logs:
    homeassistant.components.automation: debug
    homeassistant.helpers.script: debug
    pygatt.backends.gatttool.gatttool: warn
    homeassistant.components.ios.notify: warn
    homeassistant.components.device_tracker.nmap_tracker: warn
    homeassistant.components.http.view: warn

Saturnus · March 22, 2019, 12:59pm

@petro

08:28:14 INFO (MainThread) [homeassistant.components.automation] Executing Hallway lamp dynamic brightness < Motion
08:28:14 INFO (MainThread) [homeassistant.helpers.script] Script Hallway lamp dynamic brightness < Motion: Running script
08:28:14 INFO (MainThread) [homeassistant.helpers.script] Script Hallway lamp dynamic brightness < Motion: Executing step call service
08:28:15 INFO (MainThread) [homeassistant.helpers.script] Script Hallway lamp dynamic brightness < Motion: Executing step call service
08:28:15 INFO (MainThread) [homeassistant.components.automation] Initialized trigger Hallway lamp off < No motion 2 min.
08:28:35 INFO (MainThread) [homeassistant.components.automation] Executing Debug - Hallway lamp b<9 > Phone
08:28:35 INFO (MainThread) [homeassistant.helpers.script] Script Debug - Hallway lamp b<9 > Phone: Running script
08:28:35 INFO (MainThread) [homeassistant.helpers.script] Script Debug - Hallway lamp b<9 > Phone: Executing step call service
08:30:27 INFO (MainThread) [homeassistant.components.automation] Executing Hallway lamp off < No motion 2 min.
08:30:27 INFO (MainThread) [homeassistant.helpers.script] Script Hallway lamp off < No motion 2 min.: Running script
08:30:27 INFO (MainThread) [homeassistant.helpers.script] Script Hallway lamp off < No motion 2 min.: Executing step call service
08:30:27 INFO (MainThread) [homeassistant.helpers.script] Script Hallway lamp off < No motion 2 min.: Executing step call service

Nothing weird right?
I guess we need more debug level.

petro · March 22, 2019, 1:04pm

Seems like you’re turning off the lamp at that point. You shouldn’t be getting the notification.

Saturnus · March 22, 2019, 1:19pm

The first automation turns on the light. It also enables an automation to turn off the light when the motion sensors do not detect motion any more.
Apparently the brightness is below 9 and thus the notification is sent.
A little over 2 minutes later the trigger for no motion is met and the light is turned off. (Note: Xiaomi Aqara motion sensors only send the ‘no motion’ signal if there is already no motion detected by them for 2 minutes.)

Only odd thing I see is the ‘below 9 brightness’ trigger happening about 20 seconds after turning on the light. Thus theoretically it would be possible that ‘something’ turned down the brightness 20 seconds after the trigger. No clue what that could be though, not in HA, as well as outside HA.

petro · March 22, 2019, 3:25pm

Are you sure this isn’t a hardware issue?

Saturnus · March 23, 2019, 1:58pm

This is the only odd thing happening to my setup.
No crashes, no instability, no high resource usage.
Time seems off max 5 seconds per hour, with synchronization each hour. Not nice for a modern computer (RPi 3b) but should still be fine.

That leaves the option open that it is the light bulb itself…then again, brightness 8 is a huge coincidence then. I am changing the template value to 6 now.

The next template runs on another light and I haven’t seen a wrong brightness setting.

      brightness: >-
        {% if now().hour < 6 %}
        {{ 128 }}
        {% else %}
        {{ 255 }}
        {% endif %}

As far as I am able to see, I would point to HA. Maybe there still is something in it’s way. Maybe the way I coded the if statement is wrong (maybe it needs single or double quotes?). Maybe HA trips over it.

petro · March 23, 2019, 3:47pm

None of that should matter. If it fails setting a brightness it would assign it zero if anything. The template looks good. I see nothing wrong with it and I even tested all the numbers. How about this. Make a template sensor with the same equation. Perform a update sensor service call in your automation before setting the lights. Then in your notification, add that sensor value to the message. Then you’ll see if the template is really messing up during runtime.