Hello, I am trying to do a wakeup-light using a blueprint. To change the wakeup-time on the dashboard I can use a sensor inside the blueprint. Now I want to use an entity whose value for the time I can change on the dashboard that writes its value to the sensor.
I tried to write something in the configuration.yaml, but its not working.
template:
- sensor: WakeUp Light Timestamp
device_class: timestamp
xxxx ?