Smart radiator valve with direct control?

Hey fellow nerds,

I'm looking for a radiator valve that I can control directly over some radio interface (Wi-Fi, Bluetooth, Zigbee, or even something proprietary as long as there's a transmitter with a Linux driver). So I want to control the valve position, rather than set the temperature on an integrated thermostat. It also must be battery powered, since running power lines to all radiators is something I'd rather avoid doing. Does anyone here have experience with something like that?

Submitted by OvenCrate

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