To get your final board going, connect an ESP-8266 ESP-01 to your original board and get yourself an Espruino wifi. One you operate as an access point with Web server and the other with an plain station and 'browser' that refreshes periodically with an http request to the server and displays the result on your display the way you already do... (another option is to go for bluetooth, but I would start with Wifi / Wireless LAN).
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
To get your final board going, connect an ESP-8266 ESP-01 to your original board and get yourself an Espruino wifi. One you operate as an access point with Web server and the other with an plain station and 'browser' that refreshes periodically with an http request to the server and displays the result on your display the way you already do... (another option is to go for bluetooth, but I would start with Wifi / Wireless LAN).