Jakob Krantz

I don't care which way, the only reason I see to have it a compile thing is that it will not work with upstream Zephyr and need NCS, and that...

You can, but often it won't compile as the ncs stuff is not compatilbe with newer zephyr

I checke the source code of GadgetBridge and it will log everything sent to the phone to a file, this file can be read and shared from the app. All...

> @jakkra maybe use the external Flash memory for logging (10-20k maybe), so the logging can be used without BLE enabled. We can limit it to faults or errors, so...

> > All data sent from the watch to GadgetBridge not properly formatted according to the protocol will just be discarded (BUT LOGGED) so I think we can eventually just...

> Ok I understand now. Yes, then the easiest solution would be to just create a ble backend logger similar to the one I mentioned > > Just consider to...

Checked some dev-kits and they always provide VBUS so should be fine. 

Is this needed? This is not a power input per se, just reference voltage for IO. 

> > Is this needed? This is not a power input per se, just reference voltage for IO. > > The [reference circuit](https://infocenter.nordicsemi.com/index.jsp?topic=%2Fstruct_pmic%2Fstruct%2Fnpm1300.html) is using a 100 nF cap on...

Buzzer OK