https://github.com/espruino/Espruino/search?utf8=%E2%9C%93&q=lshift&type=
Thank you @Wilberforce that gets me in the ball park . . .
@Robin 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://github.com/espruino/Espruino/search?utf8=%E2%9C%93&q=lshift&type=