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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
Thanks, sadly some of those seem to be cost optimized - no 32kHz crystal,no inductors for dc/dc. However they do have nfc antenna visible. I wonder where it is on the pcb that parasquid posted and why it is not around the button like on others. If it is under battery then it doesn't look very optimal.
Oh, and BTW I posted wrong nrf52832 reference schematics link before, the correct for this QFN48 package is here so now I see NFC pins are in fact going somewhere.