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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.
@fanoush
micropython does not support 3.0 version of softdevice that matches SDK12 that espruino uses. nRF52832 DK is not needed, any SWD debugger device would work including raspberry pi or pico or $2 blue pill board or stlink usb dongle from aliexpress. And BTW there is already micropython based firmware for nrf52832 watches called waspos https://github.com/daniel-thompson/wasp-os that might be good starting point.