Last update in Custom button Card

Configuration Frontend
1

Hi everyone.
I need to show last updated state for motion sensors in my tablet view using the custom-button card.
What’s the way to do it?
I searched around but can’t obtain good results. I can show the last update just using the entities type card.

I want to display: name, state and the last update of the sensors.

This is the result for now. last update is shows as 0 seconds.

image
image1162×198 12.7 KB

I tried to created a template sensor for each sensors

image
image1286×1096 165 KB

and integrated it in the frontend
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image1278×994 126 KB

But the result is what shown in the first image.

Could anyone help me ?

Thanks

2

Did you find a solution for this ?

3

custom:button-card needs updates in order for last_update to show properly. As it currently stands, it only calculates when your sensors update. Therefor, it will always be zero.

If you want it to update, you need to adjust your template sensor so that it updates once a minute using now(), or use homeassistant.update_entity service call in an automation to force updates on whatever frequency you want.