Simple as that, ZX81 Emulator running on ESP8266
More Information here.
My new board has arrived today, the easyeda.com service is great and the quality of the board… see the pictures.
This module was a complete surprise, was purchased in order to be used with the Raspberry Pi Zero, but is much more than a simple WiFi interface. More info.
Information how to connect a LCD to the Raspberry Pi. More information here.