Meet the G-Knob: a smart knob controller that makes it easy to control your lights, air conditioner, and other connected devices. It has a built-in Bluetooth gateway and app / voice control. It has a few physical keys that you can customize to control various devices. The G-Knob has a light sensor, so it can automatically open the curtains or adjust your lights automatically.
The G-Knob can be easily fixed to the wall. You can also use it on its custom base. You can switch scenes with the push of a button. The device has a 1.28-inch display and works with iOS and Android devices. You can find this project on Kickstarter at this time.[where to get it]