is there any public projects on smart home automation for light and fan with humming free speed control
Try searching:
https://oshwlab.com/search?wd=home%20automation%20fan BTW, you need to update
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Brand new interactions and interfaces.
Smooth support for design sizes of over 3W
devices or 10W pads.
More rigorous design constraints, more
standardized processes
For enterprises, more professional users.
Easy to use and quick to get started.
The process supports design scales of 300
devices or 1000 pads.
Supports simple circuit simulation.
For students, teachers, creators.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
Try searching:
https://oshwlab.com/search?wd=home%20automation%20fan
BTW, you need to update