My electricity provider’s consumption interface wasn’t flexible enough, so I went for the jugular and started retrieving real-time usage by attaching a photoresistor to my meter’s light that blinks 1000 times per kilowatt-hour.

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  • home-assistant-glow

    ⚡ The power of energy measurements in your house

  • If folks want to make one of these theirselves (themselves? whatever), the "home assistant glow" project makes it pretty straightforward: https://github.com/klaasnicolaas/home-assistant-glow (I can never find the link, so I might as well drop it here). It uses ESPHome + a config file + a photo-diode thingy. It's more or less the same thing with a photoresistor. The server-side works easiest with Home Assistant, but you can access the device on its own too.

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