I'm also interested in support for the Shelly Wave devices. I've recently purchased a number of Shelly Wave devices including Wave PM Mini, Wave 1 and Wave 1 Mini. All work (to a degree) using this community-developed driver ([RELEASE]Shelly Wave 1PM Driver). The only strange behaviour is that when connected to my fridge/freezer (average load ~35W) the energy reading only updates every 1.5 - 3 hours. In contrast, I have some ESP8266-based Wi-Fi smart plugs that report energy changes every 30s or so.
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