Damn. Now I got bitten by the smart home bug, and am pondering buying some gadget that can read SML data from the IR LED on the power meter down in the basement.

(Though I tested wifi by dropping my phone into the power distribution box down there, and the connection was extremely marginal. No idea if the small antenna on something like an ESP-01 would be able to make a connection. Unfortunately there's also no good way to route a cable out of the enclosure.)

Nice! In contrast to my phone, the ESP-01 has (admittedly marginal) Wi-Fi connectivity inside the distribution box. Should be good enough to send some telemetry.

Seems like now I'll need to read up on Tasmota, MQTT, Home Assistant, and how to connect everything to record some data... As soon as I get the power source sorted - my power bank switches off when the sensor box has no activity. Maybe adding a hub would make for enough load on the USB outlet? Also have a small 2200mAh battery to try.

...at least this is a small project where I know mostly none of the components and it's less hard to just wrap things into docker compose (other than that the lastest Home Assistant release container still doesn't run on an original RasPi - the python inside dies with a SIGILL).

Hrm, why did a start a new thread on this stuff instead of continuing with the other one?

First success: The default Tasmota script for the Landis & Gyr E220 gives me at least some of the data that's pulsed out as SMT stream by the IR LED:

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Finally made it through the "optical pushbutton" menu and enabled the enhanced info dump, so I now get a load measurement and fractional total usage increments in the info screen.

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