Hello, Gordy7,
I believe it’s part of the nRF52840 silicon (NO) but maybe someone else knows for sure. I would think if there’s NO “Serial, Begin”, print" in the code it would No.
my .02
HTH
GL 
PJ
Hello, Gordy7,
I believe it’s part of the nRF52840 silicon (NO) but maybe someone else knows for sure. I would think if there’s NO “Serial, Begin”, print" in the code it would No.
my .02
HTH
GL PJ