Variable scope has to do with where, in which functions, and when a variable exists. For instance, if you declare a variable inside a function, then it can only be used inside that function.Google C++ and scope and you should find more than you ever wanted to know.
I thought he was talking about two different errors. I was talking about the first, which I gathered wasn't part of the library problem.
but if i had a working code, i could compare & find out what i did wrong thanks
got a set of the simple one direction transmitter & receiver- built the boards, that went fine & i think it's all done right
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