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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.
@yngv126399
I have flashed many fitness trackers with an NRF52832 with a generic Espruino build with great success, but my last attempt is not working. I use OpenOCD to flash, and it seems to work just fine, flash, verify, reset, run (which I've done many times with other boards). But when I reset run, it's not advertising on BT. My board file does have that set as default console. I even tried flashing other builds for working devices (with other pins defined for BTN1) but no BT console. I know Espruino is running, as one firmware I flashed had defined D9 as input_pullup, which happens to be this new boards motor pin and it started humming right after reset. This is a fitness tracker from 2020, not available any more, but similar to the F07 and B5 which have working firmware available (thanks to @fanoush).
The only difference I can see is that this seems to have a ceramic antenna, unlike the standard copper wire most others have.
any thoughts or ideas appreciated!
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