Image creation triggered by HA | Home Assistant | Page 1

undone silo Nov 13, 2025, 11:05 AM

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Hallo,

I was planning simply to send mobile notification once a day showing the electricity prices for the next day. Nice addition would have been to include small plot of the prices as an image. This is where it got difficult.

I tried to create python script and run it in HA-docker container to generate image, but appears that it is missing mathplotlib from there.

I could generate it externally, but I don't know what would be easiest way to trigger the generation with the data from the HA.

Any ideas?

undone silo Nov 13, 2025, 11:23 AM

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Hmm, actually that data was rather easy to fetch from the HA and also got it plotted and stored to web server.

Maybe I will just set crontab trigger to create the image a bit before sending out the notification

subtle basin Nov 13, 2025, 11:33 AM

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undone silo Hmm, actually that data was rather easy to fetch from the HA and also got it plo...

if you set up to generate on a webhook you could use RESTful Command to call the hook with an automation?

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or could use MQTT to send a command?

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or run the script via ssh. there is an integration for easily doing that on HACS

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one of those, "100 solutions" problems I think.

undone silo Nov 13, 2025, 11:37 AM

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Yeah definitely. I got pretty far with this already, so I will continue the attempts. Thanks for those tips!

#Image creation triggered by HA