One of the chalendges in creating smart home projects is how you present the data that you gather in an interesting and fun way. 

To help with that, I created a gauge using the CrowPanel round display that displays the temperature on a gauge scale as well as the temperature value and the humidity value in the center. 

This gauge can then be incorporated anywhere in the home so that you can have a quick overview of the current values. Of course, this can be extended to be used as a controller as well, or other screens can be added to see the history or any other data parameters from the smart home setup. 

The display is programmed using Arduino IDE and it uses MQTT to connect to the Home Assistant instance. 

Since we have full control over the code that is running we can customize it in any way we need.