I have Pi2 that acts as a dashboard for real time data on my train to work, my wife's bus route, weather temp and rain probability. I am using sensehat to present this information through pixels.

I have a Pi3 running home automation (hass.io) which I am new to and find amazing in most part.

And final one in my daughters room which is a Pi0 with Envirophat that's monitoring temperature.

All side project and I am not a developer.