This looks a bit like dejavu to me!
http://forum.espruino.com/conversations/297603/#comment13396707
I never did get it working with the csr4.0 dongle and windows 10 :-(
@Wilberforce 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.
This looks a bit like dejavu to me!
http://forum.espruino.com/conversations/297603/#comment13396707
I never did get it working with the csr4.0 dongle and windows 10 :-(