how to use labview program receive arduino 2560 mega digital sigal

[Dennis_Knutson]

The picture does not mean anything and your question about a file path and arduino output does not make any sense to me.

[ikchan]

Dear Dennis,

Sorry for my poor present, I mean that, the output connected LED already now, if I wanted to connect another output (say video file path) parallel connect with LED together, does it workable?

 I captured the error programme for your comment.

[Dennis_Knutson]

I can't see that small icon. What is it?

[ikchan]

it's path to string, it has error when connected wire parallel led

[Dennis_Knutson]

Of course you have an error. The function requires a path as an input. What you are doing does not make any sense. You can wire the Boolean to a case statement or wire the error out as I already said.