The issue is defiantly not impatient students, i try to do it with their boards and i get the same error. My money is on Wandersons conclusion of electrical noise. The question is what can be done to stop the electrical noise? and what pins would most likely cause the com port in use problem if they were exposed to the electrical noise?Motor shield files https://sites.google.com/a/theprojectinventory.com/envertech/enver-creek-engineering/scamatics/motorshieldarduino2.sch?attredirects=0&d=1https://sites.google.com/a/theprojectinventory.com/envertech/enver-creek-engineering/scamatics/motorshieldarduino2.brd?attredirects=0&d=1
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