@user156811 is changing the actual C firmware where it interfaces with the real hardware - an awful lot of that code doesn't get used in the emulator, so even if the emulator works it's no guarantee that the device itself isn't broken
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.
@user156811 is changing the actual C firmware where it interfaces with the real hardware - an awful lot of that code doesn't get used in the emulator, so even if the emulator works it's no guarantee that the device itself isn't broken