I use this to turn on hallway lights In response to a motion sensor.
But on cloudy days, or depending On the season sometimes the place is dark before that.
What’s a better way?
I use this to turn on hallway lights In response to a motion sensor.
But on cloudy days, or depending On the season sometimes the place is dark before that.
What’s a better way?
An additional light sensor, or even better, a motion sensor with integrated light sensor like the zigbee model from Xiaomi, or similar.
Then you can condition on a light threshold instead of sunset and sunrise.
Actually with PIR motion sensors are they mostly the same in terms of quality and sensitivity?
I chose mine based on AAA battery and not weird button ones.
The Xiaomi/Aqara one I mentioned, and which I use for exactly the same purpose, to turn on lights when the light intensity is below a certain threshold, uses a CR2450 battery, which lasts 2+ years in my situation - depending on the frequency it is actually being used/triggered I suppose
Not sure if you meant CR2450 being a button (battery) or not. There must be similar ones around using AAA or AA batteries as well if that’s what you prefer.
Yes CR2450 are not common here at all. We have CR 2032
and I assume these batteries last less than the larger AAA
I use this logic
found this
- name: illuminance
# friendly_name: "Sunlight Percentage"
unique_id: 9f57cea2-b4e0-4fd0-b1f0-f3a351f6154ff50fee79-c60b-484e-b364-0ed2909a71b3
state: >-
{%- set elevation = state_attr('sun.sun','elevation') | float %}
{%- set cloud_coverage = state_attr('weather.home','cloud_coverage') | float %}
{%- set cloud_factor = (1 - (0.75 * ( cloud_coverage / 100) ** 3 )) %}
{%- set min_elevation = -6 %}
{%- set max_elevation = 90 %}
{%- set adjusted_elevation = elevation - min_elevation %}
{%- set adjusted_elevation = [adjusted_elevation,0] | max %}
{%- set adjusted_elevation = [adjusted_elevation,max_elevation - min_elevation] | min %}
{%- set adjusted_elevation = adjusted_elevation / (max_elevation - min_elevation) %}
{%- set adjusted_elevation = adjusted_elevation %}
{%- set adjusted_elevation = adjusted_elevation * 100 %}
{%- set brightness = adjusted_elevation * cloud_factor %}
{{ brightness | round }}
availability: >-
{% from 'availability_template.jinja' import avail %}
{{- avail(['sun.sun','weather.home']) | bool -}}
unit_of_measurement: "%"
device_class: illuminance
icon: mdi:sun-angle
then added this to my automation condition
entity_id: sensor.illuminance
below: 11
Thanks I will try that out
could possibly even turn on the light brightness according to the illuminance