I like the concept of this cheap 8x32 pixel RGB matrix as display for status informations samples. As i allready stated here: DIY 8x32 RGB status display with appdaemon "PixelIt"
There is an alternative approach named awtrix. Awtrix needs an internetconnection and a local server.
The deveplopment is ongoing, i recommend to use the beta-version because the new feature “customapp” makes it easy to feed data from HA to the display.