Using an Arduino Uno and running High Sierra 10.13.3, I was able to upload and run the simple sketches found in "examples." I purchased several nanos and attempted to load them with the same simple sketches, but could not. Returning to use the Uno I discovered the same inability.I hope I was able to…

upload problems

jimxiv April 30, 2018, 3:01pm 8

Again you were right, I found the old boot loader

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