ThomasThanks for the link - very useful. Have tried all 4 pins and only INT0 works, and on pin 3 as depicted in the graphic. INT1 on pin 2 does not seem to work at all (same for INT2/3) and I have found references elsewhere which indicate that this is an omission in the source code for the Leonardo, which implies it could be fixed. Unfortunately, cannot find out how to perform the fix and am not familiar with the lower-level stuff yet to know where to start.RegardsDuncan
Hello Markus,INT0 and INT1 are working fine on D0 and D1My sketch is using and I2C interface (now on D2 and D3 on the Leornardo). I noticed that when I setup INT0 and INT1 ("attachInterrupt") I2C is no more working.I don't use INT2 and INT3, as now possible with your modifications.Would it be possible to advice me how to fix this issues ?Many thanks,Jean-Luc
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