Combine Entitiy and timer

[StefanDorschu]

I do have some lights which (of course) can be controlled manually but are also controlled by a motion sensor.

What i would like to have is the following addition.

Based on your second "mushroomstyle" - example (the green one)

type: custom:timer-bar-card entity: switch.my_switch duration: fixed: '00:10:00' invert: true bar_direction: rtl bar_width: 60% mushroom: layout: vertical color: green

Instead of having a fixed duration when the entity is turned on i would like to show the remaining time of a timer that is running (which belongs to that light). The timer is not controlled by this card but only showing when active.

Is that possible?

Best regards,

Stefan