@davebytes
Welcome aboard. 
As someone who was recently searching for a rotary switch, that doesn’t require buying additional bridge/hub hardware, I can say that the choices are limited. But if you’re looking for an inexpensive and feature-rich option that is similar to the Tap Dial, then take a look at Moes Zigbee Smart Knob. There is a DTH that has not yet been properly ported to lua, if you’re up to the coding task. If you get stuck along the way, there are some good people here to ask for help. Those coding questions are usually posted in the Developer Programs section.
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