Hi, I can’t seem to figure out how to do this. My objective is to set the overnight charge level of my house battery based on the following day’s predicted solar yield from my PV array. I can directly set the value I want to charge to in the inverter entity, and I have written a function that wor…

Use a Service Call, not a Device Action, because it supports templates whereas Device Actions don’t. action: - variables: target_charge: >- {{ ((states('sensor.energy_production_tomorrow') | float(0))**(-1.324)) * 12315 }} - service: number.set_value target: entity_id: …

Hello Tom , It would help if you could to provide some code so we can see what you’ve done so far… We won’t be able to help if all we have is ‘I want to do this thing with this other thing’. How to help us help you - or How to ask a good question .

Fair enough - but it’s pretty basic and very much work in progress. Template sensor to deliver a target charge looks like this: {{ ((states("sensor.energy_production_tomorrow")**(-1.324))*12315) }} automation code (at the moment) looks like this: description: "" mode: single trigger: - platfor…

What is that entity specifically? (and always try to use entity ID to target it instead of device ID for reasons I’ll link to later) If it’s not something you can set, maybe you just create your own template sensor to store the result and use that in your display /automation etc. Instead?

Hi, the entity I’m trying to change is: number.sm_prog1_capacity I can change it easily via e.g. a slider control. Thank you!

Then when you have your variable then issue a service call to number.set_value (Device id’s change when a device is replaced. To make your automation survive device replacement use entity id’s instead and you can rename replacement device entities to use old names and the automation continues witho…

That makes a lot of sense, especially as the device ID’s will probably change on reboot as they are USB RS485 adapters going directly into my HA server! Thanks

Blinding. Thank you, I will give that a try! Tom

See here :slight_smile: [image] Why and how to avoid device_ids in automations and scripts Community Guides Background When you start writing automations, a device trigger seems the obvious choice. Everybody knows what a device is and it comes at the top of the UI dropdo…

Folks, thanks for the awesome help. everytime I try to do something in HA I learn more :slight_smile: I just set up the automations (two independent inverters to change) as you suggested using the service call methodology and ran them manually and validated that they changed the target charge leve…

[image] fastnfurryous: thanks for the awesome help You’re welcome! Please consider marking my post above with the Solution tag. It will automatically place a check-mark next to the topic’s title which signals to other users that this topic has been resolved. This helps users find answers to …

Use automation to set an entity's value based on input from another template sensor

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paddy0174 (Patrick) July 30, 2024, 3:25pm 10

See here