just an additional option…
i was going to use OLED displays in each room with buttons for up/down temperature but as i added more and more devices to control it made more sense to take old phones and turn them into habpanels. Plus then i could modify stuff in other rooms for whatever room I was in. I’m not down-talking the OLED idea, it just may become inadequate as you do more and more.
this is an old S4 in a 3d printed case.
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