Reply to "Arduino Question - block detection"

BillPOGR Forum Member

John,

You got me curious as you were touting the glories of interrupts :-)

I found this reference table about which digital pins can drive interrupts. Looks like the Mega has only 6 interrupt enabled pins:

Board	Digital Pins Usable For Interrupts
Uno, Nano, Mini, other 328-based	2, 3
Mega, Mega2560, MegaADK	2, 3, 18, 19, 20, 21
Micro, Leonardo, other 32u4-based	0, 1, 2, 3, 7
Zero	all digital pins, except 4
MKR1000 Rev.1	0, 1, 4, 5, 6, 7, 8, 9, A1, A2
Due	all digital pins
101	all digital pins

11/29/162:02 PM

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