Hi! I’am trying to create a timer by adding a number input with a slider to ajust the minutes and a button to start the countdown. The number input is typ float and therefore i get 22.0 (e g.) instead of 22. So i have to convert the input to int. This is my approch, which does not work: The timer …

You cant use templates in the core version of Lovelace. baunan’s and obaldius’ examples work because they are calling the service with a template in the backend (an automation or script), not the frontend (Lovelace). You have two options: Put your service call and template in a script. Call the …

I am using this approach for my dynamic timer. From the input_number in minutes, convert it to seconds and using the timestamp expression to convert it to the duration time format. See if you can use the same approach to get yours to work. - service: timer.start data_t…

Thank you for your help! Tested that right away but i get the message: Fehler beim Aufrufen des Diensts timer/start. offset {% set ctime = states.input_number.timer_minutes.state %} {% set ctime = ctime|float*60 %} {{ ( ctime) | timestamp_custom('%H:%M:%S', false) }} should be format 'HH:MM', 'HH:…

This works. You can set the duration in seconds so you don’t need to format HH:MM:SS. If your input_number represents minutes, you just have to multiply it by 60 service: timer.start data: entity_id: timer.musik_timer duration: "{{states('input_number.timer_minutes')|int * 60}}"

Thats driving me nuts. I get the exact same error message with your example. It feels like the template is not rendered / intepreted and it hands only the complete string over to the service and not the calculated result…

Ahhh! This is the root cause and explains why my approch also failed to work. I will double check this. Thank you for this background information!

Could not test earlier: I’ve now created Input number entity type: entity entity: input_number.sz_musik_dauer Timer Entity type: entity entity: timer.sz_musik_timer name: Countdown attribute: remaining start button type: button tap_action: action: call-service service: script.sz_start_mus…

But: the timer switches also from idle / unknown to active on button press. But i can’t see a count down… and the finish time does not make sense to me (button press around post of my last question / post) ) [grafik]

that’s something that has been happening for a long time. The timer works although the remaining time doesn’t update. There are workarounds in the forum if you search, but nothing straightforward afaik. EDIT: [image] Display remaining seconds of timer in frontend Configuration …

Another bunch of grey hairs done by HA :rofl: Thanks again, also for the hints earlier today. It’s great to receive competent “just in time” help. @baunan @anon11644107 @obaldius

Start a timer with a given number of minutes / dynamic duration

Configuration

obaldius April 18, 2021, 5:53pm 12

This one too if you are into Node red. It persists HA restarts, which the other doesn’t, and has a countdown that updates… It’s not difficult to set up, it’s actually very easy