Hi there, I have an arduino uno (just starting out) and I am a little confused about the "attachInterrupt(interrupt, ISR, mode)" function. The first parameter is described as "the interrupt number"; what do they mean by that? I am just trying to have a counter running in loop() and have an led tur…

Basic Interrupt Question

system May 1, 2014, 5:45pm 2

Did you read the page you linked?
Interrupt zero, pin two, interrupt one, pin three on a Uno

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