Dynamic pricing charging

[patatman]

Hi there, and thanks for creating this awesome blueprint.

Lately I've switched to a dynamic contract, and would love to add the possibility to charge the car when the price is at a certain point.
I'm thinking about adding it to your blueprint, and setting a PR. But I'm not sure if this messes to much with your original intent of this blueprint.

Let me know if your open to this change, or if I can better fork this into my own blueprint.

[patatman]

Thinking about this a bit longer, and it might be easier to create a new automation that:
Trigger: When hourly price changes

Choose 1:
Condition: When price is below or equal to set maximum
Action: Set charge amps to max
Action: toggles the "charge from grid" switch on.
Action: Trigger your script.

Choose 2:
Condition: When price is above to set maximum
Action: toggles the "charge from grid" switch off.