https://www.youtube.com/watch?v=gFi_qdRK6Og or http://www.espruino.com/EspruinoESP8266
@Spocki started
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.
https://www.youtube.com/watch?v=gFi_qdRK6Og
or
http://www.espruino.com/EspruinoESP8266