Pin Change Interrupts

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hello,

for project need respond keypresses common type keypad. project going go on battery, busy waiting in loop() not question. need 12 interrupts. on sanguino i'm going use 2 external interrupts. found these pin change interrupts. question is:

what they?
has code or similar me?

jan

http://arduino.cc/en/reference/attachinterrupt


Arduino Forum > Forum 2005-2010 (read only) > Software > Syntax & Programs > Pin Change Interrupts


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