How to draw curve/ graph card with own values, not sensor values?

[nikop]

@robomilo, let me try to help and break down what might be the reason for code not working. Firstly, in all these sample codes we are using “Plotly” which is HACS card. Have you installed it?

More info about Plotly in HA:

Plotly interactive Graph Card

[demo] [attributes] [216764329-94b9cd7e-fee9-439b-9134-95b7be626592] [image] [image] [215353175-97118ea7-778b-41b7-96f2-7e52c1c396d3] [image] Here is my first Lovelace card, similar to the history card but leveraging plotly.js to make it interactive. You can scroll and zoom and the missing data will be automatically fetched. Click on the Index of examples with images in the readme The yaml is backwards compatible with the history card but adds a big amount of features, instructions …