A query to see if anyone has tried to use the onboard RTC on these chips, I’ve checked the specs here:
and it has an onboard RTC so I am wondering if an RTC wing is necessary as I am trying to keep my package volume as small as possible.
EDIT: To add to this, Arduino site has an example that states the Arduino Zero or MKRZero or MKR1000 boards have built in RTC.
Is the Adalogger M0 a clone of the MKRZero? Do you know if this code would work?