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arduino
Norbert
Norbert

Reputation: 4291

Arduino: Attach an interrupt to one of the higher pin numbers?

I have an Arduino Mega 2560. Is is possible to attach an interrupt on the higher pin numbers, for instance, D20 to D25? I tried PcInt, but it doesn't work with the higher pin numbers for some reason.

I have a custom board and it's using these pins, so my hands are tied in terms of what pins to use.

Upvotes: 0

Views: 354

Answers (1)

Norbert
Norbert

Reputation: 4291

The pin mapping of the Mega2560 says that pins 20-25 aren't candidates for PCINTs (but 20 and 21 would have INTs). So the layout of the board makes it simply incompatible for this Arduino.

Upvotes: 0

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