Attach Single edge problem

[engineerarslan]

I want to read 4 single pulses from a fan. I am able to read a single by attachSingleEdge(34,35)

But when I use attachSingleEdge(34,34). It does not count anything. While it has been clearly mentioned by the author that we can pass the same pin as the argument. So do I have to use 8 pins for 4 pulses? Or Am I missing something?

[ktannady]

just go with second parameter -1, hope it helps