For @Tesseract-Developer and myself, what version of Espruino is flashed on your device? As the closing post (then) is over twenty months old, could it be that the device you have is still at an older version?
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.
Tue 2019.10.22
Thanks @AntiCat for the verification.
For @Tesseract-Developer and myself, what version of Espruino is flashed on your device? As the closing post (then) is over twenty months old, could it be that the device you have is still at an older version?