got a Grove Starter Kit for Particle Mesh.
With the kit comes a Feather-compatible Grove adapter / shield.
Using it with Feather boards (Huzzah ESP8266, nRF52840) seems to provoke reboots.
Don’t have a Xenon for testing, but can reproduce the issue reliably by adding the adapter to above feather boards.
Is there a link to the hardware layout of the Grove adapter?
(I understand blaming the adapter might sound strange.)
((From what I can tell e.g. on the Huzzah, the device freezes after a short while, then the watchdog kicks in to reboot.))