The MKRFOX has 8 External Interrupts on pins 0, 1, 4, 5, 6, 7, 8, A1 (16) and A2 (17)
2 does not seem to be in that list
(This is the French forum here - on cause français 
)
The MKRFOX has 8 External Interrupts on pins 0, 1, 4, 5, 6, 7, 8, A1 (16) and A2 (17)
2 does not seem to be in that list
(This is the French forum here - on cause français )