If you have to work disconnected or with spotty connection, copy - when once (decently) connected - the minified module from https://espruino.com/modules/HD44780.min.js into your modules folder in your local sandbox... Espruino will pick it then from there...
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.
If you have to work disconnected or with spotty connection, copy - when once (decently) connected - the minified module from https://espruino.com/modules/HD44780.min.js into your modules folder in your local sandbox... Espruino will pick it then from there...