By default it does not change, it is taken from nrf52 ROM area FICR where unique serial id and MAC is.
And I take it each puck has a unique one ? In which case this is great, I can use that without any addition to the code. Thanks for your help
yes, https://devzone.nordicsemi.com/f/nordic-q-a/14152/what-is-the-difference-between-the-deviceid-and-deviceaddr/54079
@greylinux started
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.
By default it does not change, it is taken from nrf52 ROM area FICR where unique serial id and MAC is.