First try at DT_INT's, I failed! help please!

[Demon]

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Or, you can turn on PORTB pull-ups (OPTION_REG.7 = 0), make PORTB.4 LOW so you can use SW1 pushbutton.
Changing to OPTION_REG.6 = 0 will make it trigger on the falling edge (button press) instead of the rising edge (button release).

This is funny, I did this very exercise yesterday and posted it in the Code Examples. LOL

Robert