COM port selection nightmare

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i trying use leanardo dell precision 64 bit win 7,  , spend 90% of quite limited spare time trying set stable communication, com ports  seem come , go randomly or "in use" if disconnected.  have tried various sections on web, still canot stable reciepy geting going basic connection. occassionally fluke next time can spend 3-4 hours trying started.

1 else have these problems , solution.



Arduino Forum > Using Arduino > Installation & Troubleshooting > COM port selection nightmare


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