In this video I demo a car message display powered by esp8266 and 16x2 lcd display. You can either display custom message via a web page or you can enter a time after which you will be back and the time will decrement every minute.
The code for the project is linked below
https://www.dropbox.com/s/zsh7xnw0gj5j51p/esp8266weblcdmessager.ino?dl=0
The library for the project is as linked below
https://www.dropbox.com/s/l26y5o61ppxpdy8/esplcdwebmessager.h?dl=0
The library has to be in libraries folder of arduino and in esplcdwebmessager subfolder