Script that incriments Dimmer brighness_pct value from 1 to 255?

[123 (Taras)]

You might want to examine this script which is designed to fade a light that doesn’t support transition. You can specify the desired brightness level and transition period and the script takes care of the rest. To be clear, I didn’t invent it, I just simplified it (and converted it from an automation to a script).

YAML Light Fader for light entities that don't support "transition"

Here is a script version of mrsnyds original work. Be advised this script is not identical to the original automation version. It uses the same algorithm but with several differences: Uses light not entity_id The option to specify the light(s) to be dimmed is named light instead of entity_id. The reason is because when you call a script using the script.turn_on service, you specify which script to turn on by setting the service’s entity_id option. This is the same name, so the script’s varia…

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NOTE

The reason why it’s more complex than merely a simple repeat is because it can compute the appropriate number of steps, and their duration, in order to perform a fairly smooth transition from any existing brightness level to any desired brightness level.